Mineral Specimens - page 18
The Carles Curto Collection (duplicates)

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Carles Curto Text: Carles Curto (formerly curator of the Geology Museum, Barcelona) & Jordi Fabre
Assistance from John S. White (former Smithsonian curator) John S. White

 


Born in Barcelona in 1950. Right from my early childhood, at the age of ten, and thanks to the mountaineer and naturalist who was my maternal grandfather (who gave me my first collection in 1960), I got in touch with the world of minerals, a hobby that was still a little unknown back then but that was clarified by frequent visits to the Geology Museum in Barcelona and the "old style" shop of Soler Pujol, in the Plaza Real of downtown Barcelona city. In both places I had the opportunity to get to know, along with other newcomers to the hobby, the most expert and highest level collectors, such as D. Josep Cervelló and D. Joaquín Folch.

Between 1962 and 1965, after many Saturday mornings in the Geology Museum in Barcelona, with the ineffable presence of the concierge, D. Francisco García Espino, who sold us modest specimens, always accompanied by some interesting explanation, and with visits to other private collections I was made aware of what could really interest me and I made a qualitative first selection among the wide mix of various objects that I had accumulated and I eliminated a good number of them from a jumble of massive minerals, rocks and fossils (and, why not say it: "pebbles")

In 1969 I decided to start my university studies in the Faculty of Geology of the University of Barcelona, requesting, at the same time, a scholarship from the Municipal Museum of Geology, entering, in 1973, as an interim curator. It was not until years later the 1978 that I became -after examination- to the position of curator.

At the beginning of the seventies, coinciding with an era of special mineralogical activity, the collection continued to grow based on a "classic" (systematic-crystallographic) model, but with more attention to aspects of documentation and genetic interest than to other more "aesthetic" aspects . I was particularly struck by the crystalline morphology and the mineralogical "curiosities", with the final result being an eclectic collection, maybe very irregular, but full of suggestions and surprises and that ended up branching into a section of miniatures.

 

Carles Curto

With the arrival of computerization, in the early eighties, I decided to seriously address the cataloging and bibliography, which I took advantage of to donate a large part of my collection to the Geology Museum of the School of Mining Engineers of the Polytechnic University of Manresa and, many of the most beautiful and significant specimens, to the Museum of Geology (now Museum of Natural Sciences) of Barcelona. It was also at this time that I developed more academic activity and started to inform other people, with numerous publications and collaborations.

In 2017, retired, I decided to make a new start (is it a matter of age?), take a mineralogical break, limit what really interests me and go about reducing things that no longer fit, which is what I have time to do.

Be kind with my selection and enjoy it.

 

USA

Ramsdellite
Ramsdellite. Ramsdellite.
Ramsdellite  

CG56AM5: Equant Ramsdellite crystals with very well defined faces and edges and on matrix. The specimen, from one of the most typical localities for the species, comes from the Carles Curto collection (number 1993.09), whose label and computer file we will send to the buyer.
Mistake Mine, Sam Powell Peak, Box Canyon, Yavapai County, Arizona  USA (±1993)

Specimen size: 6 × 3.1 × 2.4 cm = 2.36” × 1.22” × 0.94”

Main crystal size: 0.7 × 0.7 cm = 0.28” × 0.28”

Former collection of Carles Curto (duplicates)



Sold
Gold with Quartz
Gold with Quartz  

CM86AH6: Group of much flattened Gold crystals on a Quartz matrix. They have very neat contour, well defined faces and edges, and are very bright. The sample is from the first (1989) of the Gold at the Eagle’s Nest mine. We’ll send to the buyer the original label and also a copy of the computer card with the full collection catalog text.
Eagle's Nest Mine, Sage Hill, Michigan Bluff District, Placer County, California  USA (±1989)

Specimen size: 1.5 × 1 × 0.8 cm = 0.59” × 0.39” × 0.31”

Former collection of Carles Curto (duplicates)



Gold with Quartz. Gold with Quartz.
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Inesite with Calcite
Inesite with Calcite. Inesite with Calcite.
Inesite with Calcite  

CT96AI3: Groups of Inesite crystals with very well defined simple forms, bright and with a very intense pink color, on a matrix of the same Inesite with minor Calcite. The locality is an American classic for the species. The sample is from a J. Fabre exchange with the collection of duplicates of Joaquín Folch in the year 1987, when this collection was not well known under this name.
Hale Creek Mine, Mad River Rock, Coastal Range, Trinity County, California  USA (1973)

Specimen size: 6.4 × 4 × 3.5 cm = 2.52” × 1.57” × 1.38”

Main crystal size: 1.2 × 0.4 cm = 0.47” × 0.16”

Former collection of Carles Curto (duplicates)



Sold
Tantalite-(Fe)
Tantalite-(Fe)  

CT66AM1: Prismatic crystal with flat contacts at the back of the prism, parallel growths and polycrystalline formations with sharp terminal faces.
The specimen, from an old historical mine, comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Big Boulder Mine, Larimer County, Colorado  USA

Specimen size: 2.5 × 2.1 × 1.3 cm = 0.98” × 0.83” × 0.51”

Former collection of Carles Curto (duplicates)



Tantalite-(Fe). Front
Front
Tantalite-(Fe). Top
Top
Order
Baryte with Pyrite
Baryte with Pyrite. Baryte with Pyrite.
Baryte with Pyrite  

CJ14AL5: Druse of Baryte crystals with very well defined faces and edges, transparent, very bright and of a very intense and uniform orange color, with two small cubic Pyrite crystals. This piece, from a typical locality for quality Baryte, comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Eagle Mine, Gilman, Gilman District, Eagle County, Colorado  USA

Specimen size: 4.7 × 3.6 × 1.6 cm = 1.85” × 1.42” × 0.63”

Main crystal size: 1 × 0.6 cm = 0.39” × 0.24”

Former collection of Carles Curto (duplicates)



Sold
Strontianite with Fluorite
Strontianite with Fluorite  

CN46AL3: Centered aggregates of white acicular Strontianite crystals, with very well defined faces and edges and implanted in a lilac Fluorite matrix. The specimen shows the classic morphology for this locality, a reference specimen for the species.
From the Carles Curto collection (ref. 1985.38), whose label and information sheet we will send to the buyer.
Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois  USA

Specimen size: 4.8 × 3.6 × 3 cm = 1.89” × 1.42” × 1.18”

Main crystal size: 0.6 × 0.2 cm = 0.24” × 0.08”

Minor fluorescence long & short UV

Former collection of Carles Curto (duplicates)



Strontianite with Fluorite. Strontianite with Fluorite.
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Copper
Copper.
Copper  

CL11AL3: A very aerial tree-like floater aggregate composed of slightly elongated rhombododecahedral crystals of Copper with pronounced curved edges.
The specimen comes from the Carles Curto collection (no. 1976.46), whose label and information sheet we will send to the buyer.
Eagle Harbor, Keweenaw County, Michigan  USA (±1976)

Specimen size: 2.6 × 1.7 × 0.8 cm = 1.02” × 0.67” × 0.31”

Main crystal size: 1.6 × 1 cm = 0.63” × 0.39”

Former collection of Carles Curto (duplicates)



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Franklinite with Calcite
Franklinite with Calcite  

CR66AJ0: Octahedral Franklinite crystal on matrix with the classical shape of the samples from Franklin in the sixties of the last century. It has very well defined faces and edges which are slightly curved. An American classic from the type locality for the species.
The sample is from the Carles Curto collection whose label and catalog card we will send to the buyer.
Franklin, Franklin Mining District, Sussex County, New Jersey  USA

Specimen size: 2.5 × 2.5 × 2.1 cm = 0.98” × 0.98” × 0.83”

Former collection of Carles Curto (duplicates)



Franklinite with Calcite. Front
Front
Franklinite with Calcite. Rear
Rear
Order
Baryte
Baryte.

Recorded under neon light
Baryte
 

CCT13AO3: Complete double floater group with growths of tabular Baryte crystals with sand inclusions (“baryte rose” variety). A USA classic which is not seen much nowadays.
The specimen comes from the duplicates of the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Lake Thunderbird area, Norman, Cleveland County, Oklahoma  USA (±1969)

Specimen size: 4.2 × 3.2 × 2.4 cm = 1.65” × 1.26” × 0.94”

Main crystal size: 2.4 × 2.3 cm = 0.94” × 0.91”

Former collection of Carles Curto (duplicates)



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Rutile with Muscovite
Rutile with Muscovite  

CG76AJ7: Reticular aggregate of twinned crystals that are translucent, bright, with a very intense red color and on a matrix of tabular Muscovite crystals.
Boiling Springs, Cleveland County, North Carolina  USA

Specimen size: 3.4 × 2.9 × 2 cm = 1.34” × 1.14” × 0.79”

Main crystal size: 1 × 0.3 cm = 0.39” × 0.12”

Former collection of Carles Curto (duplicates)



Rutile with Muscovite. Rutile with Muscovite.
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Rutile (variety sagenite) with Siderite and limonite
Rutile (variety sagenite) with Siderite and limonite. Rutile (variety sagenite) with Siderite and limonite.
Rutile (variety sagenite) with Siderite and limonite  

CT76AL4: Reticular aggregate (sagenite variety) of twinned, translucent, lustrous red crystals of Rutile with intense reflections, on matrix of partially limonitized former rhombohedral Siderite crystals.
The specimen comes from the Carles Curto collection, whose label and catalogue information we will send to the buyer.
Boiling Springs, Cleveland County, North Carolina  USA

Specimen size: 5.8 × 5.7 × 2.3 cm = 2.28” × 2.24” × 0.91”

Main crystal size: 1.4 × 0.1 cm = 0.55” × 0.04”

Former collection of Carles Curto (duplicates)



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Mexico- Canada

Mexico

Pyrargyrite with Quartz
Pyrargyrite with Quartz  

CM26AN2: Pyrargyrite crystals very rich in faces, with sharp crystal forms, on matrix, with Quartz crystals.
This specimen, a Mexican classic, comes from the Carles Curto collection (number 2003.19), whose label and computer catalogue entry we will send to the buyer.
San Juan de Rayas Mine, Guanajuato, Municipio Guanajuato  Mexico

Specimen size: 4.9 × 4.3 × 2.6 cm = 1.93” × 1.69” × 1.02”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

Former collection of Carles Curto (duplicates)



Pyrargyrite with Quartz. Pyrargyrite with Quartz.
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Silver
Silver.
Silver  

CD14AM7: Aerial group, on matrix, with very bright leafy growths of Silver. From a well-known Mexican locality but one from which few collection specimens have been preserved.
The specimen comes from the Carles Curto collection, whose label and computer catalogue entry we will send to the buyer.
El Oro de Hidalgo, Municipio El Oro, State of Mexico  Mexico

Specimen size: 2.5 × 1.9 × 0.8 cm = 0.98” × 0.75” × 0.31”

Main crystal size: 1 × 0.5 cm = 0.39” × 0.20”

Former collection of Carles Curto (duplicates)



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Silver
Silver  

CP66AL4: Aggregate of cubic Silver crystals with small octahedron faces, some of them quite sharp, with very well defined crystalline shapes and others somewhat more rounded.
The specimen comes from the Carles Curto collection, whose label and catalogue information we will send to the buyer.
Encantada Mine, La Encantada, Municipio Melchor Múzquiz, Coahuila (Coahuila de Zaragoza)  Mexico

Specimen size: 2.4 × 2.3 × 1.5 cm = 0.94” × 0.91” × 0.59”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

Former collection of Carles Curto (duplicates)



Silver. Front
Front
Silver. Rear
Rear
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Silver
Silver. Front
Front
Silver. Rear
Rear
Silver. Side
Side
Silver.
Silver  

CE50AL9: Floater aggregate with polycrystalline growths of hexahedral Silver crystals with very well defined faces and edges, shiny and with small dark coatings of Acanthite. Although the area is known for its Fluorites, specimens from this particular mine are rare and good Silvers even more so.
The specimen comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Encantada Mine, La Encantada, Municipio Melchor Múzquiz, Coahuila (Coahuila de Zaragoza)  Mexico

Specimen size: 3.5 × 3 × 2.2 cm = 1.38” × 1.18” × 0.87”

Main crystal size: 0.3 × 0.3 cm = 0.12” × 0.12”

Former collection of Carles Curto (duplicates)



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Copper

Recorded under neon light
Copper
 

CBF71AO1: Group of Copper crystals, cubic with octahedral faces, lustrous, and with excellent definition (for the species) on faces and edges.
Very aesthetic specimen from a Mexican locality that has provided few quality specimens.

Veta Rica Mine, Sierra Mojada mining district, Municipio Sierra Mojada, Coahuila (Coahuila de Zaragoza)  Mexico (±1987)

Specimen size: 8.4 × 5.0 × 5.4 cm = 3.31” × 1.97” × 2.13”

Main crystal size: 0.6 × 0.6 cm = 0.24” × 0.24”

Former collection of Carles Curto (duplicates)



Copper. Copper.
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Conichalcite with Calcite
Conichalcite with Calcite.
Conichalcite with Calcite  

CC96AM5: Botryoidal growth with small, translucent and lustrous Conichalcite crystals with a very intense green color, on a limonite matrix and with Calcite crystals. The specimen comes from the Carles Curto collection (number 1983.17), whose label and computer file we will send to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (±1983)

Specimen size: 3.6 × 4.4 × 3.4 cm = 1.42” × 1.73” × 1.34”

Main crystal size: 3.1 × 2.8 cm = 1.22” × 1.10”

Former collection of Carles Curto (duplicates)



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Aurichalcite

Recorded under neon light
Aurichalcite
 

CCB56AO1: Vug of acicular Aurichalcite crystals, in some areas of the specimen forming centered aggregates, with a bright luster and intense bluish green color. On a limonite matrix.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (±1986)

Specimen size: 5 × 3 × 2.4  cm = 1.97” × 1.18” × 0.94”

Former collection of Carles Curto (duplicates)



Aurichalcite. Aurichalcite.
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Aurichalcite
Aurichalcite. Aurichalcite.
Aurichalcite  

CX13AM1: Centered aggregates of fine acicular crystals of Aurichalcite with a slightly bluish, intense green color, on a limonitic matrix.
The specimen is from an old historical mine, and comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 5.9 × 3.7 × 1.4 cm = 2.32” × 1.46” × 0.55”

Main crystal size: 0.6 × 0.6 cm = 0.24” × 0.24”

Former collection of Carles Curto (duplicates)



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Rhodochrosite

Recorded under neon light
Rhodochrosite
 

CPM86AO1: Groups on matrix of very sharp rhombohedral crystals of Rhodochrosite. Transparent, with great luster and an intense pink color.
Potosí Mine, Santo Domingo (Francisco Portillo), Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico (±1986)

Specimen size: 4.3 × 3.2 × 2.1 cm = 1.69” × 1.26” × 0.83”

Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”

Former collection of Carles Curto (duplicates)



Rhodochrosite. Rhodochrosite.
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Silver
Silver.
Silver  

CB46AL3: Feather-like growth of Silver crystals in which a doubly terminated and very elongated crystal stands out, with the sharp profile of a spinel-law twin. The attached documentation shows that the specimen was extracted from the mine in 1979.
It comes from the Carles Curto collection (no. 1981.55), whose label and information sheet we will send to the buyer.
La Nevada Mine, Cerro San Antonio, San Miguel, Batopilas, Andrés del Río District, Municipio Batopilas, Chihuahua  Mexico

Specimen size: 2.9 × 2.8 × 0.7 cm = 1.14” × 1.10” × 0.28”

Main crystal size: 2.7 × 0.5 cm = 1.06” × 0.20”

Former collection of Carles Curto (duplicates)



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Silver
Silver  

CB47AJ7: Dendritic aggregate on matrix of very elongated Silver crystals that form parallel growths and have very well defined octahedral terminations.
La Nevada Mine, Cerro San Antonio, San Miguel, Batopilas, Andrés del Río District, Municipio Batopilas, Chihuahua  Mexico

Specimen size: 4.1 × 3.5 × 2.3 cm = 1.61” × 1.38” × 0.91”

Main crystal size: 1.2 × 0.1 cm = 0.47” × 0.04”

Former collection of Carles Curto (duplicates)



Silver. Front
Front
Silver. Rear
Rear
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Quartz (variety amethyst) with Calcite and Sphalerite
Quartz (variety amethyst) with Calcite and Sphalerite. Quartz (variety amethyst) with Calcite and Sphalerite.
Quartz (variety amethyst) with Calcite and Sphalerite  

CE37AJ7: Elongated amethyst crystals with slightly curved faces and edges. They are translucent, have a very intense and uniform color, are on Sphalerite matrix and are partially coated by white scalenohedral Calcite crystals. The amethyst of such quality is very uncommon at Naica.
Naica, Municipio Saucillo, Chihuahua  Mexico

Specimen size: 7.5 × 5.4 × 3.9 cm = 2.95” × 2.13” × 1.54”

Main crystal size: 2.6 × 0.6 cm = 1.02” × 0.24”

Former collection of Carles Curto (duplicates)

Calcite fluorescence short UV & minor fluorescence long UV



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Silver With Calcite
Silver With Calcite  

CC13AH5: Aggregate on a Calcite matrix of very sharp distorted cube faces that have very well defined faces and edges. We’ll send to the buyer the original label and also a copy of the computer card with the full text of the collection catalog.
La Riza Mine, Mineral del Monte, Municipio Mineral del Monte, Hidalgo  Mexico

Specimen size: 1.7 × 1.5 × 1.2 cm = 0.67” × 0.59” × 0.47”

Main crystal size: 0.3 × 0.3 cm = 0.12” × 0.12”

Calcite fluorescent short UV

Former collection of Carles Curto (duplicates)



Silver With Calcite. Silver With Calcite.
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Arsenopyrite
Arsenopyrite. Arsenopyrite.
Arsenopyrite  

CM76AI3: Floater druse of sharp bright crystals with simple forms and excellent terminal faces. The samples of Arsenopyrite from Concepción del Oro, relatively common some time ago, are currently very rare.
Bonanza Mine, Concepción del Oro, Municipio Concepción del Oro, Zacatecas  Mexico

Specimen size: 5.8 × 5.1 × 3.7 cm = 2.28” × 2.01” × 1.46”

Main crystal size: 1.2 × 0.7 cm = 0.47” × 0.28”

Former collection of Carles Curto (duplicates)



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Topaz
Topaz  

CF27AL3: Group of very sharp prismatic Topaz crystals, on matrix, with well defined faces and edges, bright, transparent and with color zoning, very deep in the terminations.
The specimen comes from the Carles Curto collection (ref. 1997.05), whose label and information sheet we will send to the buyer.
Tepetate, Municipio Villa de Arriaga, San Luis Potosí  Mexico

Specimen size: 4.9 × 2.8 × 3.2 cm = 1.93” × 1.10” × 1.26”

Main crystal size: 1.3 × 0.6 cm = 0.51” × 0.24”

Fluorescence on the matrix (short and long UV)

Former collection of Carles Curto (duplicates)



Topaz. Front
Front
Topaz. Side
Side
Topaz.
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Canada

Silver
Silver. Front
Front
Silver. Rear
Rear
Silver  

CC56AL4: Aggregates of very elongated, fibrous Silver crystals, some of them with pronounced curvatures and fine dendritic growths and with small, poorly defined, Acanthite crystals.
The specimen comes from the Carles Curto collection, whose label and catalogue information we will send to the buyer.
Keeley-Frontier Mine, South Lorrain Township, Cobalt-Gowganda Region, Timiskaming District, Ontario  Canada (±1966)

Specimen size: 2.1 × 2 × 1.2 cm = 0.83” × 0.79” × 0.47”

Former collection of Carles Curto (duplicates)



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Analcime with Aegirine
Analcime with Aegirine  

CR66AM1: Floater aggregate of white trapezohedral Analcime crystals, one of them clearly dominant, with acicular black crystals of Aegirine.
The specimen, from an old historic mine, comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec  Canada

Specimen size: 4 × 2.9 × 3.1 cm = 1.57” × 1.14” × 1.22”

Main crystal size: 3.3 × 3.2 cm = 1.30” × 1.26”

Minor fluorescence short UV

Former collection of Carles Curto (duplicates)



Analcime with Aegirine. Front
Front
Analcime with Aegirine. Rear
Rear
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Spain

Sulphur with Calcite
Sulphur with Calcite. Sulphur with Calcite.

Recorded under neon light
Sulphur with Calcite
 

CBR96AP0: Individualized Sulphur crystals with very sharp crystal forms, translucent, with great luster and an intense and uniform color. On matrix, with very acute scalenohedral Calcite crystals.
A good quality Spanish classic from the Carlos Curto collection (duplicates) number 1980.11
Cáucaso Mine, Conil Mines, Conil de la Frontera, Comarca La Janda, Cádiz, Andalusia  Spain

Specimen size: 4.8 × 4.3 × 4.8 cm = 1.89” × 1.69” × 1.89”

Main crystal size: 0.5 × 0.3 cm = 0.20” × 0.12”

Calcite fluorescent long & short UV

Former collection of Carles Curto (duplicates)



Sold
Jarosite
Jarosite  

CB26AI3: Jarosite crystals on matrix with very well defined faces and edges, transparent and very bright.
Socavón Santa Bárbara (Túnel El Arteal), Almagrera Range, Cuevas del Almanzora, Comarca Levante Almeriense, Almería, Andalusia  Spain (08/1997)

Specimen size: 6.2 × 5.3 × 1.4 cm = 2.44” × 2.09” × 0.55”

Main crystal size: 0.3 × 0.1 cm = 0.12” × 0.04”

Former collection of Carles Curto (duplicates)



Jarosite. Jarosite.
Jarosite.
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Bismuth
Bismuth. Bismuth.
Bismuth  

CD37AJ7: Parallel growths of skeletal faces and foliation surfaces of native Bismuth, very bright and on a Quartz matrix. A Spanish classic.
Dolores Mine, Dolores Mining Group, Las Lomas, Pozoblanco, Comarca Los Pedroches, Córdoba, Andalusia  Spain

Specimen size: 5 × 3.6 × 2.9 cm = 1.97” × 1.42” × 1.14”

Former collection of Carles Curto (duplicates)



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Celestine

Recorded under neon light
Celestine
 

CDP63AO1: Group of very sharp tabular Celestine crystals, between translucent and transparent, with good luster and a uniform light blue color. A Spanish classic.
Minerama II Claim, Puente Tablas, Jaén city, Jaén, Comarca Metropolitana de Jaén, Andalusia  Spain (±1984)

Specimen size: 6.3 × 5 × 4 cm = 2.48” × 1.97” × 1.57”

Main crystal size: 2.7 × 1.1 cm = 1.06” × 0.43”

Former collection of Carles Curto (duplicates)



Celestine.
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Prehnite
Prehnite.
Prehnite  

NC16AL3: Globular growths, on matrix, with bright, translucent crystals and a very intense and uniform apple-green color. A Spanish classic.
The specimen comes from the Carles Curto collection (no. 2002.03), whose label and information sheet we will send to the buyer.
Oficarsa Quarry, De las Culebras Hill, Carchelejo, Cárcheles, Comarca Sierra Mágina, Jaén, Andalusia  Spain (10/2001)

Specimen size: 3.8 × 3 × 1.9 cm = 1.50” × 1.18” × 0.75”

Former collection of Carles Curto (duplicates)



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Cerussite
Cerussite  

CC86AJ7: Very aerial stalactitic growths of white Cerussite crystals with very well defined, almost globular, curvatures. A rarity at Linares, obtained at the mine in 1968.
Linares, Comarca Sierra Morena, Jaén, Andalusia  Spain (1968)

Specimen size: 5 × 4.1 × 2.4 cm = 1.97” × 1.61” × 0.94”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”

Fluorescent long & short UV

Former collection of Carles Curto (duplicates)



Cerussite. Cerussite.
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Sphalerite
Sphalerite. Front
Front
Sphalerite. Light behind
Light behind
Sphalerite  

CA67AL9: Spinel-law twin, with very well defined crystal forms and with curvatures on the faces and edges. Translucent, with good luster and a very intense and vivid red color.
The specimen comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Las Mánforas Mine, Áliva mining area, Camaleño, Comarca Liébana, Cantabria  Spain (±1974)

Specimen size: 3.9 × 3.7 × 2.5 cm = 1.54” × 1.46” × 0.98”

Main crystal size: 3 × 3 cm = 1.18” × 1.18”

Former collection of Carles Curto (duplicates)



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Pyromorphite

Recorded under neon light
Pyromorphite
 

CXF86AP1: Druse of Pyromorphite crystals with very sharp crystal forms, with bright luster and a vivid green color. In matrix and different from what we usually know from El Horcajo.
The specimen comes from the Carles Curto collection duplicates (number 1974.26), whose label and data sheet we will send to the buyer.
El Horcajo Mines, El Horcajo, Almodóvar del Campo, Comarca Campo de Calatrava, Ciudad Real, Castilla-La Mancha  Spain

Specimen size: 3.3 × 2.5 × 2.6 cm = 1.30” × 0.98” × 1.02”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

Minor fluorescence long & short UV

Former collection of Carles Curto (duplicates)



Pyromorphite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Pyromorphite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Order
Pyromorphite
Pyromorphite. Front
Front
Pyromorphite. Rear
Rear
Pyromorphite.
Pyromorphite  

CX67AM5: Unusually elongated Pyromorphite crystals on matrix, with very well defined faces and edges and a light green color. This piece comes from the Carles Curto collection (number 1974.45), whose label and computer file we will send to the buyer.
El Horcajo Mines, El Horcajo, Almodóvar del Campo, Comarca Campo de Calatrava, Ciudad Real, Castilla-La Mancha  Spain

Specimen size: 3.7 × 4.5 × 2 cm = 1.46” × 1.77” × 0.79”

Main crystal size: 1.5 × 0.3 cm = 0.59” × 0.12”

Minor fluorescence long & short UV

Former collection of Carles Curto (duplicates)



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Pyromorphite
Pyromorphite  

CC49AJ7: Distorted Pyromorphite crystals, with prismatic and pyramidal faces displaced during the growth process. They are very bright and have the best intense grass-green color, typical of the mine.
El Horcajo Mines, El Horcajo, Almodóvar del Campo, Comarca Campo de Calatrava, Ciudad Real, Castilla-La Mancha  Spain

Specimen size: 4.1 × 2.7 × 1.6 cm = 1.61” × 1.06” × 0.63”

Main crystal size: 0.7 × 0.5 cm = 0.28” × 0.20”

Minor fluorescence short UV

Former collection of Carles Curto (duplicates)



Pyromorphite. Front
Front
Pyromorphite. Rear
Rear
Sold
Pyromorphite
Pyromorphite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Pyromorphite. Rear / Photo: Joaquim Callén
Rear / Photo: Joaquim Callén

Recorded under neon light
Pyromorphite
 

CRM96AP1: Acicular crystals of yellowish green Pyromorphite with curvatures on the faces and edges, with good luster, on matrix.
The specimen comes from the Carles Curto collection duplicates (number 2008.23), whose label and computer entry we will send to the buyer. Previously in the collection of Silvane (Josep Amigó), from Barcelona.
El Horcajo Mines, El Horcajo, Almodóvar del Campo, Comarca Campo de Calatrava, Ciudad Real, Castilla-La Mancha  Spain

Specimen size: 5.5 × 2.5 × 2.0 cm = 2.17” × 0.98” × 0.79”

Main crystal size: 0.8 × 0.1 cm = 0.31” × 0.04”

Minor fluorescence long & short UV

Former collection of Carles Curto (duplicates)



Order
Quartz with Cinnabar
Quartz with Cinnabar  

CC12AJ7: Clear Quartz crystals with very well defined faces and edges. One of them is clearly dominant with an an evident Cinnabar inclusion. They are on matrix, with crystals and foliation surfaces of Cinnabar.
Distrito Minero de Almadén, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain

Specimen size: 2.6 × 2 × 1.2 cm = 1.02” × 0.79” × 0.47”

Main crystal size: 1 × 0.3 cm = 0.39” × 0.12”

Former collection of Carles Curto (duplicates)



Quartz with Cinnabar.
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Cinnabar
Cinnabar. Cinnabar.
Cinnabar.
Cinnabar  

CP97AJ7: Parallel growths of rhombohedral shaped Cinnabar crystals, large for the locality, with slightly curved faces and edges, with Quartz and on matrix.
Almaden Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain (1968)

Specimen size: 6 × 5.7 × 5.4 cm = 2.36” × 2.24” × 2.13”

Main crystal size: 1.1 × 1 cm = 0.43” × 0.39”

Former collection of Carles Curto (duplicates)



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Cassiterite with Quartz
Cassiterite with Quartz  

CC13AM1: Angular twin of two prismatic Cassiterite crystals, lustrous, with a range of shades between cream and dark brown, on a Quartz matrix.
The specimen, a classic from an old historic Spanish mine, comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
La Luceta Mine, Vecinos, Municipio Vecinos, Comarca Campo de Calatrava, Salamanca, Castile and León  Spain (±1971)

Specimen size: 2.2 × 1.7 × 1.6 cm = 0.87” × 0.67” × 0.63”

Main crystal size: 2.2 × 1.5 cm = 0.87” × 0.59”

Former collection of Carles Curto (duplicates)



Cassiterite with Quartz. Front
Front
Cassiterite with Quartz. Top
Top
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Aragonite (variety cuprian)
Aragonite (variety cuprian).
Aragonite (variety cuprian)  

CT36AH6: Coralloid and botryoidal growths with micro-acicular surfaces. The nice blue color is due to copper salts inclusions. We’ll send to the buyer the original label and also a copy of the computer card with the full collection catalog text.
La Profunda Mine, Collada de Cármenes, Cármenes, Comarca Los Argüellos, León, Castile and León  Spain (04/1970)

Specimen size: 7.4 × 6.7 × 3.9 cm = 2.91” × 2.64” × 1.54”

Former collection of Carles Curto (duplicates)



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Azurite with Quartz
Azurite with Quartz  

CT9AJ7: Equant Azurite crystals with a thick lenticular shape. They are bright with a very intense color and are on matrix with Quartz crystals.
Berta Quarry, Can Domènech Hill, Roques Blanques Mountains, Sant Cugat del Vallès-El Papiol, Comarca Vallès Occidental / Baix Llobregat, Barcelona, Catalonia / Catalunya  Spain (05/1971)

Specimen size: 1.8 × 1.7 × 1.7 cm = 0.71” × 0.67” × 0.67”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

Former collection of Carles Curto (duplicates)



Azurite with Quartz.
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Azurite with Quartz
Azurite with Quartz.
Azurite with Quartz  

CV11AJ7: Equant Azurite crystals with a thick lenticular shape. They are bright with a very intense color and are on matrix with Quartz crystals.
Berta Quarry, Can Domènech Hill, Roques Blanques Mountains, Sant Cugat del Vallès-El Papiol, Comarca Vallès Occidental / Baix Llobregat, Barcelona, Catalonia / Catalunya  Spain (05/1971)

Specimen size: 2 × 1 × 1.3 cm = 0.79” × 0.39” × 0.51”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”

Former collection of Carles Curto (duplicates)



Order
Almandine with Quartz
Almandine with Quartz  

CD65AH5: Isolated trapezohedral Almandine crystals with very well defined faces and edges, with very finely growth-oriented striations on the faces, transparent, bright and with a very intense and uniform color. They have grown on a group of Quartz crystals, one of them clearly dominant, with a feldspar matrix. We’ll send to the buyer the original label and also a copy of the computer card with the full text of the collection catalog.
Viladrau, Comarca Osona, Gerona / Girona, Catalonia / Catalunya  Spain

Specimen size: 4.7 × 3.6 × 3.2 cm = 1.85” × 1.42” × 1.26”

Main crystal size: 0.3 × 0.3 cm = 0.12” × 0.12”

Former collection of Carles Curto (duplicates)



Almandine with Quartz. Almandine with Quartz.
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Baryte
Baryte. Front
Front
Baryte. Rear
Rear
Baryte.
Baryte  

CC16AL8: Clustered aggregates of very elongated flat crystals translucent and white with gray tones and with small Pyrite crystals. From an already extinct locality from which it is very difficult to find specimens today, espècially of this quality.
The specimen comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Leonor Mine, Osor Mines, Osor, Comarca La Selva, Gerona / Girona, Catalonia / Catalunya  Spain

Specimen size: 8 × 6.6 × 4.4 cm = 3.15” × 2.60” × 1.73”

Main crystal size: 2.7 × 0.7 cm = 1.06” × 0.28”

Minor fluorescence long & short UV

Former collection of Carles Curto (duplicates)



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Gahnite with Quartz
Gahnite with Quartz  

CB14AJ7: Octahedral Gahnite crystals on a Quartz matrix. They are sharp, have the very well defined Spinel-law twin, are quite large for the species and have a uniform grayish-blue color.
Victoria Mine, Arrés, Vall d'Aran, Lérida / Lleida, Catalonia / Catalunya  Spain

Specimen size: 6.1 × 3.5 × 2.7 cm = 2.40” × 1.38” × 1.06”

Main crystal size: 1.7 × 1.3 cm = 0.67” × 0.51”

Former collection of Carles Curto (duplicates)



Gahnite with Quartz. Front
Front
Gahnite with Quartz. Side
Side
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Calcite (variety cobaltoan)
Calcite (variety cobaltoan). Calcite (variety cobaltoan).
Calcite (variety cobaltoan)  

CH9AH4: Botryoidal pale pink growths with recrystallized deep pink coralloid formations. We’ll send to the buyer the original label and also a copy of the computer card with the full text in the collection catalog.
Solita Mine, Peramea, Baix Pallars, Comarca Pallars Sobirà, Lérida / Lleida, Catalonia / Catalunya  Spain

Specimen size: 4.1 × 4 × 2.2 cm = 1.61” × 1.57” × 0.87”

Fluorescent long & short UV

Former collection of Carles Curto (duplicates)



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Vanadinite (variety endlichite)
Vanadinite (variety endlichite)  

CP14AJ7: Spheroidal and globular aggregates of Vanadinite (endlichite variety) crystals that are strongly curved, very bright with an attractive reddish brown color and are on matrix. The Vanadinite from Santa Marta are a reference for the species in Spanish mineralogy.
Santa Marta, Comarca Tierra de Barros, Badajoz, Extremadura  Spain

Specimen size: 4.8 × 3.4 × 2 cm = 1.89” × 1.34” × 0.79”

Former collection of Carles Curto (duplicates)



Vanadinite (variety endlichite). Vanadinite (variety endlichite).
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Quartz with Orthoclase
Quartz with Orthoclase.

Recorded under neon light
Quartz with Orthoclase
 

CBC13AO0: White Quartz crystals with the most classic crystal forms for the species, very well defined, translucent, lustrous, milky white, and on an Orthoclase matrix. An old Galician classic that is very difficult to find nowadays.
Outcrop Villalba road, San Simón da Costa, Comarca Terra Chá, Lugo, Galicia / Galiza  Spain

Specimen size: 6.9 × 6 × 4.2 cm = 2.72” × 2.36” × 1.65”

Main crystal size: 3.6 × 1.4 cm = 1.42” × 0.55”

Former collection of Carles Curto (duplicates)



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France

Pyromorphite
Pyromorphite  

MR37AH4: Radial and fan-like aggregates, on a Quartz matrix, of mostly acicular Pyromorphite crystals with a very intense and uniform green color. An European classic seen only from old finds. We’ll send to the buyer the original label and also a copy of the computer card with the full text in the collection catalog.
Saint-Salvy Mine, Saint-Salvy-de-la-Balme, Tarn, Occitanie  France

Specimen size: 7.5 × 5.4 × 2.9 cm = 2.95” × 2.13” × 1.14”

Main crystal size: 0.8 × 0.3 cm = 0.31” × 0.12”

Former collection of Carles Curto (duplicates)



Pyromorphite. Pyromorphite.
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Fluorite with Quartz
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side
Side
Fluorite with Quartz. Side
Side
 

EM90AM1: Floater cubic crystal of Fluorite with finely polycrystalline forms, transparent, lustrous, with a very deep and vivid blue color. Partially covered by Quartz which in some areas is also included within Fluorite.
The specimen is from the prestigious Fluorite collection of Pierre-Marie Guy.
Le Beix Mine, Saint-Germain-près-Herment, Herment, Clermont-Ferrand District, Puy-de-Dôme Department, Auvergne-Rhône-Alpes  France

Specimen size: 4.5 × 4.5 × 4 cm = 1.77” × 1.77” × 1.57”

Fluorescent long & short UV

Former collection of Pierre-Marie Guy



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Antimony
Antimony  

CC14AM1: Antimony crystalline aggregate, with brilliant geometric cleavage surfaces, on matrix with antimony oxides.
An excellent miniature, a classic of French historical mineralogy, which comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Les Chalanches Mine, Allemond (Allemont), Oisans-Romanche, Isère, Auvergne-Rhône-Alpes  France

Specimen size: 2.4 × 2 × 2 cm = 0.94” × 0.79” × 0.79”

Former collection of Carles Curto (duplicates)



Antimony.
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Azurite
Azurite. Front
Front
Azurite. Rear
Rear
Azurite  

CQ87AI5: Group, on matrix, of lenticular crystals, one of them clearly dominant, with very well defined faces and edges, bright with a color that is intense, very much more vivid than usual for the locality.
The sample is from the Carles Curto collection whose label and catalog card we’ll send to the buyer.
Chessy-les-Mines, Les Bois d'Oingt, Villefranche-sur-Saône, Rhône, Auvergne-Rhône-Alpes  France

Specimen size: 3.5 × 3 × 1.5 cm = 1.38” × 1.18” × 0.59”

Main crystal size: 2.4 × 1.4 cm = 0.94” × 0.55”

Former collection of Carles Curto (duplicates)



Order
Quartz (variety smoky)
Quartz (variety smoky)  

CB12AM1: Quartz crystal (smoky variety) clearly right-handed, with very clear faces and edges. Extraordinarily transparent and shiny, with a deep and intense color.
A French alpine classic that comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Mont Blanc Massif, Chamonix, Haute-Savoie, Auvergne-Rhône-Alpes  France (±1977)

Specimen size: 5.5 × 2.7 × 2.6 cm = 2.17” × 1.06” × 1.02”

Former collection of Carles Curto (duplicates)



Quartz (variety smoky). Front
Front
Quartz (variety smoky). Rear
Rear
Sold

Europe (excl. Spain and France)

Strontianite with Calcite
Strontianite with Calcite. Front
Front
Strontianite with Calcite. Side
Side
Strontianite with Calcite  

CP86AN1: Group of twinned Strontianite crystals with a prismatic habit and a clearly hexagonal outline, with excellent terminations, translucent, with bright luster and a light cream color, on matrix with Calcite.
The specimen comes from the Carles Curto collection, whose label and computer catalogue entry we will send to the buyer.
Oberdorf an der Laming, Laming valley, Bruck an der Mur, Styria/Steiermark  Austria

Specimen size: 4.9 × 4 × 2.9 cm = 1.93” × 1.57” × 1.14”

Main crystal size: 1.6 × 1.2 cm = 0.63” × 0.47”

Minor fluorescence long & short UV

Former collection of Carles Curto (duplicates)



Order
Epidote
Epidote  

CA11AL8: A sheaf-like aggregate of elongated Epidote crystals with good polycrystalline terminations, translucent, lustrous and with a very deep green color.
The specimen from a known but little publicized Belgian locality comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Quenast, Rebecq, Nivelles District, Walloon Brabant Province, Wallonne Region  Belgium (±2001)

Specimen size: 3.7 × 2.8 × 1.9 cm = 1.46” × 1.10” × 0.75”

Main crystal size: 2.6 × 0.4 cm = 1.02” × 0.16”

Former collection of Carles Curto (duplicates)



Epidote. Front
Front
Epidote. Rear
Rear
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Opal (variety hyalite)
Opal (variety hyalite). Opal (variety hyalite).
Opal (variety hyalite)  

CC10AI3: Clear and colorless botryoidal aggregate that is very bright, on matrix and is fluorescent with an UV lamp. A precursor of the current hyalites from Central Europe.
Valeč, Doupov, Karlovy Vary Region, Bohemia  Czech Republic

Specimen size: 4.2 × 3.4 × 2.6 cm = 1.65” × 1.34” × 1.02”

Fluorescent short UV

Former collection of Carles Curto (duplicates)



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Silver
Silver  

CT86AJ7: Spongy aggregate of native Silver with clearly enhanced very elongated and hooked Silver crystals with octahedral terminal faces. The sample is from a classic Czech Republic locality.
Uranium Mine number 21 (shaft number 21), Háje, Příbram, Central Bohemia Region, Bohemia  Czech Republic

Specimen size: 5.6 × 3.3 × 2.6 cm = 2.20” × 1.30” × 1.02”

Main crystal size: 1 × 0.1 cm = 0.39” × 0.04”

Former collection of Carles Curto (duplicates)



Silver. Front
Front
Silver. Rear
Rear
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Tochilinite
Tochilinite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Tochilinite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén

Recorded under neon light
Tochilinite
 

CCB96AP1: Isolated and well defined acicular crystals of Tochilinite, a very rare hydroxy-sulphide of magnesium and iron. On Quartz matrix.
The specimen comes from the duplicates of the Carles Curto collection (number 2001.12), whose label and computer entry we will send to the buyer.
Otamo Quarry, Siikainen, Northern Satakunta Sub-Region, Satakunta  Finland

Specimen size: 3.2 × 2.3 × 1.5 cm = 1.26” × 0.91” × 0.59”

Main crystal size: 0.4 × 0.1 cm = 0.16” × 0.04”

Former collection of Carles Curto (duplicates)



Order
Uvarovite with Quartz
Uvarovite with Quartz  

CE27AH5: Isolated Uvarovite crystals, one of them clearly dominant, dodecahedral, beveled by the trapezohedron, with very well defined faces and edges and excellent color, very intense and uniform and on a Quartz matrix. We’ll send to the buyer the original label and also a copy of the computer card with the full text the collection catalog.
Outokumpu, Tornio, Lapland Region  Finland

Specimen size: 2.4 × 2.1 × 1.6 cm = 0.94” × 0.83” × 0.63”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”

Former collection of Carles Curto (duplicates)



Uvarovite with Quartz.
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Pyrargyrite
Pyrargyrite. Pyrargyrite.
Pyrargyrite  

CV68AM5: Group of crystals with a short prismatic habit and a very sharp hexagonal outline, with good terminations, and a bright luster. The specimen comes from the Carles Curto collection (number 1976.23), whose label and computer file we will send to the buyer.
Bad Schlema (Schlema), Schlema-Hartenstein District, Erzgebirgskreis, Saxony/Sachsen  Germany

Specimen size: 2.8 × 2.5 × 1.6 cm = 1.10” × 0.98” × 0.63”

Main crystal size: 1.4 × 1.2 cm = 0.55” × 0.47”

Former collection of Carles Curto (duplicates)



Order
Acanthite with Calcite
Acanthite with Calcite  

CX64AM5: Group of cubic crystals with curvatures on the edges and small remnants of a Calcite matrix. The specimen comes from the Carles Curto collection (number 1965.35), whose label and computer file we will send to the buyer.
Schneeberg District, Erzgebirgskreis, Saxony/Sachsen  Germany

Specimen size: 1.4 × 1.3 × 1.1 cm = 0.55” × 0.51” × 0.43”

Main crystal size: 1 × 1 cm = 0.39” × 0.39”

Former collection of Carles Curto (duplicates)



Acanthite with Calcite. Front
Front
Acanthite with Calcite. Top
Top
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Acanthite with Dolomite and Pyrite
Acanthite with Dolomite and Pyrite. Front
Front
Acanthite with Dolomite and Pyrite. Rear
Rear
Acanthite with Dolomite and Pyrite  

CR46AM5: Cubo-octahedral Acanthite crystals, one of them clearly dominant, lustrous and on a Pyrite matrix with white rhombohedral Dolomite crystals. This piece, a German classic from the type locality for the species, comes from the Carles Curto collection (number 1968.14), whose label and computer file we will send to the buyer.
Himmelsfürst Mine, Brand-Erbisdorf, Freiberg District, Erzgebirgskreis, Saxony/Sachsen  Germany

Specimen size: 1.8 × 1.2 × 0.9 cm = 0.71” × 0.47” × 0.35”

Main crystal size: 1.2 × 1.1 cm = 0.47” × 0.43”

Former collection of Carles Curto (duplicates)

Type locality



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Silver
Silver  

CV96AM5: Aggregate of elongated Silver crystals, with twists, hooked shapes and very sharp terminations. This specimen, a German classic, comes from the Carles Curto collection (number 1968.27), whose label and computer file we will send to the buyer.
Himmelsfürst Mine, Brand-Erbisdorf, Freiberg District, Erzgebirgskreis, Saxony/Sachsen  Germany

Specimen size: 3.3 × 2.8 × 1.8 cm = 1.30” × 1.10” × 0.71”

Main crystal size: 2.4 × 0.3 cm = 0.94” × 0.12”

Former collection of Carles Curto (duplicates)



Silver. Front
Front
Silver. Rear
Rear
Silver.
Sold
Freieslebenite
Freieslebenite.
Freieslebenite  

CF96AJ7: Aggregate of short prismatic Freieslebenite crystals, a typical shape for the locality. They are very bright and have a fine growth striation. The crystals are not perfect and this is noted on the price, even considering the rarity of the species, coming from the type locality and the crystal size
Himmelsfürst Mine, Brand-Erbisdorf, Freiberg District, Erzgebirgskreis, Saxony/Sachsen  Germany

Specimen size: 1.6 × 1.4 × 0.8 cm = 0.63” × 0.55” × 0.31”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

Type locality

Former collection of Carles Curto (duplicates)



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Chalcopyrite epitactic Tetrahedrite with Dolomite
Chalcopyrite epitactic Tetrahedrite with Dolomite  

CR13AM4: Tetrahedral crystals of Tetrahedrite with epitaxic coatings of Chalcopyrite, very lustrous, on matrix and with small coatings of white rhombohedral Dolomite crystals.
Some crystals are fractured as is often the case in these classic pieces since it is an old German specimen referenced in mindat.org (Mindat ID: YYU-5K4). It comes from the collection of Carlos Curto (number 1970.13) whose label and computer catalogue entry we will send to the buyer.
Clausthal-Zellerfeld, Harz, Lower Saxony/Niedersachsen  Germany

Specimen size: 4.6 × 3.5 × 2 cm = 1.81” × 1.38” × 0.79”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”

Former collection of Carles Curto (duplicates)

minID: YYU-5K4



Chalcopyrite epitactic Tetrahedrite with Dolomite. Chalcopyrite epitactic Tetrahedrite with Dolomite.
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Pyromorphite
Pyromorphite.
Pyromorphite  

CD14AJ7: Parallel aggregates of elongated prismatic and doubly terminated Pyromorphite crystals, with slightly curve edges. They are bright and have a pale brown, slightly pinkish, color. A German classic.
Friedrichssegen Mine, Frücht, Bad Ems District, Lahn Valley, Rhineland-Palatinate/Rheinland-Pfalz  Germany

Specimen size: 2.7 × 1.6 × 1.2 cm = 1.06” × 0.63” × 0.47”

Main crystal size: 1.2 × 0.5 cm = 0.47” × 0.20”

Minor fluorescence long & short UV

Former collection of Carles Curto (duplicates)



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Chalcopyrite
Chalcopyrite  

CB14AL8: Aggregate of twinned disphenoidal (pseudotetrahedral) crystals of Chalcopyrite, with slight iridescence, on matrix.
The specimen from one of the most classic German localities for the species comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Herdorf, Siegerland, Rhineland-Palatinate/Rheinland-Pfalz  Germany

Specimen size: 3.4 × 2.4 × 1.9 cm = 1.34” × 0.94” × 0.75”

Main crystal size: 2.2 × 1.7 cm = 0.87” × 0.67”

Former collection of Carles Curto (duplicates)



Chalcopyrite. Front
Front
Chalcopyrite. Rear
Rear
Sold
Pyrite with Magnetite
Pyrite with Magnetite. Pyrite with Magnetite.
Pyrite with Magnetite  

CD6AJ7: Very sharp octahedral Pyrite crystals that are neatly isolated, one of them clearly dominant, and are on matrix with black dodecahedral Magnetite crystals. A classic of Italian mineralogy.
Brosso Mine, Cálea, Léssolo, Canavese District, Metropolitan City of Turin Province, Piedmont (Piemonte)  Italy

Specimen size: 5.7 × 4.2 × 2.5 cm = 2.24” × 1.65” × 0.98”

Main crystal size: 1.7 × 1.6 cm = 0.67” × 0.63”

Former collection of Carles Curto (duplicates)



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Microcline
Microcline  

MX96AL3: Very sharp elongated Microcline crystal, partially doubly terminated, on a base of the same mineral, with very well defined crystalline forms and with a very clearly seen Baveno-law twin. An Italian alpine classic.
The specimen comes from the Carles Curto collection (no. 1970.03), whose label and information sheet we will send to the buyer.
Oltrefiume, Baveno, Maggiore Lake, Verbano-Cusio-Ossola Province, Piedmont (Piemonte)  Italy (±1970)

Specimen size: 8 × 3 × 3.3 cm = 3.15” × 1.18” × 1.30”

Main crystal size: 7.9 × 2.4 cm = 3.11” × 0.94”

Former collection of Carles Curto (duplicates)



Microcline. Front
Front
Microcline. Side
Side
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Diopside with Grossular (variety hessonite)
Diopside with Grossular (variety hessonite). Diopside with Grossular (variety hessonite).
Diopside with Grossular (variety hessonite).

Recorded under neon light
Diopside with Grossular (variety hessonite)
 

CMB96AO0: Diopside as elongated crystals with sharp crystal forms, transparent, with good luster and an intense color. On matrix, with small crystals of Grossular (hessonite variety). A fine Italian classic.
Becchi delle Curbassere, Val d'Ala, Lanzo Valleys (Valli di Lanzo), Metropolitan City of Turin Province, Piedmont (Piemonte)  Italy

Specimen size: 4.8 × 4.2 × 3 cm = 1.89” × 1.65” × 1.18”

Main crystal size: 1.9 × 0.2 cm = 0.75” × 0.08”

Former collection of Carles Curto (duplicates)



Order
Quartz
Quartz  

CR86AJ7: Parallel aggregate of doubly terminated clear Quartz crystals. They are very bright and some of them have fluid inclusions and window (fenster) growths. The sample is from a locality that is a classic for Italian mineralogy.
Porretta quartz sites, Reno Valley, Alto Reno Terme (Porretta Terme), Bologna Province, Emilia-Romagna  Italy

Specimen size: 9 × 5.5 × 3.5 cm = 3.54” × 2.17” × 1.38”

Main crystal size: 4.7 × 3 cm = 1.85” × 1.18”

Former collection of Carles Curto (duplicates)



Quartz. Front
Front
Quartz. Side
Side
Sold
Quartz (variety prase)
Quartz (variety prase). Quartz (variety prase).
Quartz (variety prase)  

CM13AM5: Group of elongated crystals of Quartz (variety prase), with good luster and a very deep color. A fine miniature. This piece comes from the Carles Curto collection (number 1972.07), whose label and computer file we will send to the buyer.
Porto Azzurro, Elba Island, Livorno Province, Tuscany  Italy (±1972)

Specimen size: 3.8 × 3.8 × 3.5 cm = 1.50” × 1.50” × 1.38”

Main crystal size: 2.4 × 0.5 cm = 0.94” × 0.20”

Former collection of Carles Curto (duplicates)



Sold
Aragonite

Recorded under neon light
Aragonite
 

CCB14AO5: Group of very sharp pseudohexagonal crystals of Aragonite, one of them clearly dominant, with very distinct channels and dissolution forms, translucent, and with a uniform snow-white color.
This specimen comes from the collection of Carles Curto (duplicates), whose label and computer file we will send to the buyer.
Cianciana Mines, Cianciana, Agrigento (Girgenti) Province, Sicily  Italy (±1976)

Specimen size: 5.5 × 4.0 × 2.6 cm = 2.17” × 1.57” × 1.02”

Main crystal size: 3.6 × 2.9 cm = 1.42” × 1.14”

Fluorescent long & short UV

Former collection of Carles Curto (duplicates)



Aragonite. Front
Front
Aragonite. Top
Top
Sold
Sulphur with Aragonite
Sulphur with Aragonite. Sulphur with Aragonite.
Sulphur with Aragonite  

CR26AM8: Equant crystals of Sulphur, translucent and lustrous, on matrix, with small white crystals of Aragonite.
The specimen comes from the Carles Curto collection, whose label and computer catalogue entry we will send to the buyer.
Cianciana Mines, Cianciana, Agrigento (Girgenti) Province, Sicily  Italy

Specimen size: 7 × 6.1 × 3.5 cm = 2.76” × 2.40” × 1.38”

Main crystal size: 0.9 × 0.9 cm = 0.35” × 0.35”

Former collection of Carles Curto (duplicates)

Aragonite fluorescent and Phosphorescent



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Phosgenite
Phosgenite  

CA47AL8: Group of tabular Phosgenite crystals one of them clearly dominant, transparent, with a kind of brown-smoky color and much better luster than usual in specimens from this locality, one of the most classic Italian localities for the species.
It comes from the Carles Curto collection whose label and catalogue entry we will send to the buyer.
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna  Italy

Specimen size: 3.8 × 3.2 × 1.4 cm = 1.50” × 1.26” × 0.55”

Main crystal size: 3.8 × 3.2 cm = 1.50” × 1.26”

Fluorescent long & short UV

Former collection of Carles Curto (duplicates)



Phosgenite. Front
Front
Phosgenite. Front
Front

Top
Sold
Gold with Quartz
Gold with Quartz. Gold with Quartz.
Gold with Quartz  

CF89AN1: Lamellar and hooked growths of Gold on a white Quartz surface on a rock matrix. High quality, small but very attractive.
This specimen, from one of the most classic localities for the species, comes from the Carles Curto collection, whose label and computer catalogue entry we will send to the buyer.
Botes (Botești), Zlatna, Alba, Transylvania  Romania

Specimen size: 3 × 2.8 × 2.7 cm = 1.18” × 1.10” × 1.06”

Main crystal size: 0.7 × 0.3 cm = 0.28” × 0.12”

Former collection of Carles Curto (duplicates)



Sold
Sylvanite with 'Tennantite' and Quartz
Sylvanite with 'Tennantite' and Quartz  

CF99AM3: Aggregates of acicular Sylvanite crystals that form very lustrous skeletal growths on 'Tennantite' and a Quartz-coated matrix. From its type locality, which is one of the great classical localities for the species.
The specimen comes from the Carles Curto collection, whose label and computer entry we will send to the buyer together with a copy of the analysis we did.
Baia de Aries, Apuseni Mountains, Alba, Transylvania  Romania

Specimen size: 3.7 × 3.7 × 3.2 cm = 1.46” × 1.46” × 1.26”

Main crystal size: 0.4 × 0.1 cm = 0.16” × 0.04”

Type locality

With analysis copy

Former collection of Carles Curto



Sylvanite with 'Tennantite' and Quartz. Sylvanite with 'Tennantite' and Quartz.
Sold
Telluronevskite
Telluronevskite. Telluronevskite.

Recorded under neon light
Telluronevskite
 

CBC47AO8: Isolated crystals or in small groups of Telluronevskite, flattened, with very well defined faces and edges and on matrix. Telluronevskite is a rare selenium bismuth telluride that is rarely found so well crystallized. This specimen, from the type locality for the species, comes from the Carlos Curto collection of duplicates (number 2009.22), whose label we will send to the buyer.
Poruba pod Vihorlatom, Vihorlat Mountains, Košice  Slovak Republic (05/2009)

Specimen size: 3.5 × 2.5 × 1.2 cm = 1.38” × 0.98” × 0.47”

Main crystal size: 0.9 × 0.6 cm = 0.35” × 0.24”

Type locality

With analysis copy

Former collection of Carles Curto (duplicates)



Sold
Brandtite
Brandtite  

CH13AJ7: Very well defined fan-like growths, on matrix, of white crystals of Brandtite, a very rare calcium and magnesium arsenate. The sample is from the type locality for the species.
Harstigen Mine, Pajsberg, Persberg District, Filipstad, Värmland  Sweden

Specimen size: 4.4 × 2.8 × 1.2 cm = 1.73” × 1.10” × 0.47”

Type locality

Former collection of Carles Curto (duplicates)



Brandtite. Brandtite.
Sold
Rutile (variety sagenite) on Siderite
Rutile (variety sagenite) on Siderite.

Recorded under neon light
Rutile (variety sagenite) on Siderite
 

CFM13AO4: Reticular growth of twinned Rutile crystals (sagenite variety), with a bright luster and intense red color, on a Siderite matrix. An alpine classic.
Gronda da Cavrein Valley, Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 2.4 × 1.4 × 1 cm = 0.94” × 0.55” × 0.39”

Former collection of Carles Curto (duplicates)



Sold
Mimetite (variety campylite) with Quartz

Recorded under neon light
Mimetite (variety campylite) with Quartz
 

CRT27AO8: Mimetite, as isolated crystals or small groups, almost spherical due to the strong curvatures of the faces and edges, with good luster and an intense and uniform yellow color, on a matrix of white Quartz crystals.
An English classic that comes from Carlos Curto's collection of duplicates (number 1983.31), whose label we will send to the buyer.
Dry Gill Mine, Caldbeck Fells, Allerdale, former Cumberland, Cumbria  England / United Kingdom (±1983)

Specimen size: 6.4 × 3.3 × 2.1 cm = 2.52” × 1.30” × 0.83”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

Former collection of Carles Curto (duplicates)



Mimetite (variety campylite) with Quartz. Mimetite (variety campylite) with Quartz.
Order
Chalcocite
Chalcocite. Front
Front
Chalcocite. Side
Side
Chalcocite  

CA66AN2: Groups, on matrix, of very sharp tabular Chalcocite crystals with a hexagonal outline, more aerial than usual in this type of specimen.
The specimen, an English classic, comes from the Carles Curto collection (number 1983.59), whose label and computer cataogue entry we will send to the buyer.
St Ives Consols, St Ives, St Ives District, Cornwall  England / United Kingdom

Specimen size: 3.1 × 2.3 × 2.3 cm = 1.22” × 0.91” × 0.91”

Main crystal size: 0.5 × 0.5 cm = 0.20” × 0.20”

Former collection of Carles Curto (duplicates)



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Wavellite
Wavellite  

CT13AJ7: Radial aggregates of laminar Wavellite crystals with a silky luster and a creamy-brown color. They are very well defined and are on a sandstone matrix. The sample is a rarity due to its antiquity (the fifties of the past century) and that it is from the type locality for the species.
High Down Quarry (Heddon Quarry), Heddon Valley, West Buckland, North Devon District, Devon  England / United Kingdom

Specimen size: 5 × 2.8 × 3.6 cm = 1.97” × 1.10” × 1.42”

Type locality

Former collection of Carles Curto (duplicates)



Wavellite.
Sold
Millerite with Calcite
Millerite with Calcite. Millerite with Calcite.
Millerite with Calcite.

Recorded under neon light
Millerite with Calcite
 

CXL67AO0: Centered growth on matrix of very shiny acicular Millerite crystals. The specimen comes from a well known locality but from which there are few specimens of good quality.
Cambrian Colliery, Clydach Vale, Rhondda Cynon Taf  Wales / United Kingdom

Specimen size: 6.7 × 6.5 × 3.8 cm = 2.64” × 2.56” × 1.50”

Main crystal size: 1.2 × 0.1 cm = 0.47” × 0.04”

Former collection of Carles Curto (duplicates)



Sold

FSU

Copper
Copper  

CN16AI3: Very elongated single Copper crystal with the Spinel law twin. The sample is from a Russian locality that is a great classic but of which there are very samples.
Krasnotur'insk (Bogolovsk), Ekaterinburg (Sverdlovsk), Sverdlovsk Oblast, Ural  Russia

Specimen size: 5.2 × 1.7 × 1 cm = 2.05” × 0.67” × 0.39”

Former collection of Carles Curto (duplicates)



Copper. Front
Front
Copper. Rear
Rear
Sold
Cuprite with Miersite
Cuprite with Miersite. Front
Front
Cuprite with Miersite. Rear
Rear
Cuprite with Miersite  

CG57AL3: Polycrystalline complete floater of very sharp octahedral Cuprite crystals, with brilliant, slightly curved faces and edges and with minor crystals of Marshite
The specimen comes from the Carles Curto collection (no. 2011.36), whose label and information sheet we will send to the buyer.
Poteryaevskoe Mine, Rubtsovsky District, Altai Krai  Russia (2011)

Specimen size: 4.2 × 3.3 × 3.2 cm = 1.65” × 1.30” × 1.26”

Main crystal size: 3.2 × 3.2 cm = 1.26” × 1.26”

Fluorescent short UV

Former collection of Carles Curto (duplicates)



Sold
Brookite with Quartz
Brookite with Quartz  

CD16AI3: Very sharp laminar Brookite crystals that are transparent and bright with an orange brown color. They are implanted on a group of doubly terminated Quartz crystals with polycrystalline growths.
Puiva Mount, Saranpaul, Khanty-Mansi Okrug, Tyumen Oblast  Russia

Specimen size: 7.8 × 4 × 2.9 cm = 3.07” × 1.57” × 1.14”

Main crystal size: 1.8 × 1 cm = 0.71” × 0.39”

Former collection of Carles Curto (duplicates)



Brookite with Quartz. Brookite with Quartz.
Sold

Africa - Tsumeb

Africa

Chalcostibite with Azurite and Malachite
Chalcostibite with Azurite and Malachite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén

Recorded under neon light
Chalcostibite with Azurite and Malachite
 

CXR96AP1: Chalcostibite as elongated crystals with good terminations, rare in this type of specimen, and with their faces and edges defined. The Chalcostibite crystals are partially pseudomorphed by Azurite, which forms vividly colored surfaces.
The specimen comes from the collection of duplicates of Carles Curto (number 2002.24), whose label and computer entry we will send to the buyer.
Rar el Anz, Oued Cherrat (Cherrat Wadi), Chaouia-Ouardigha, Casablanca Prefecture, Casablanca-Settat Region  Morocco

Specimen size: 3.3 × 2.4 × 2.0 cm = 1.30” × 0.94” × 0.79”

Main crystal size: 2.2 × 1.5 cm = 0.87” × 0.59”

Former collection of Carles Curto (duplicates)



Sold
Bornite with Quartz
Bornite with Quartz  

CR63AN1: Tristetrahedral Bornite crystal with sharp crystal forms, bright metallic luster and intense iridescence, on matrix, with Quartz.
This specimen comes from the Carles Curto collection, whose label and computer catalogue entry we will send to the buyer.
Bleida Mine, Tinzouline, Zagora Province, Drâa-Tafilalet Region  Morocco (±1980)

Specimen size: 3.7 × 2 × 1.7 cm = 1.46” × 0.79” × 0.67”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”

Former collection of Carles Curto (duplicates)



Bornite with Quartz. Bornite with Quartz.
Sold
Malachite xx with Dolomite and Quartz
Malachite xx with Dolomite and Quartz. Malachite xx with Dolomite and Quartz.
Malachite xx with Dolomite and Quartz  

CB96AN2: Parallel growths of equant crystals of primary Malachite, with good luster and a very deep and uniform color, on matrix with Dolomite.
The specimen comes from the Carles Curto collection (number 1978.14), whose label and computer catalogue entry we will send to the buyer.
Jebel Irhoud, Youssoufia Province, Marrakesh-Safi Region  Morocco

Specimen size: 4.6 × 2.8 × 2.6 cm = 1.81” × 1.10” × 1.02”

Main crystal size: 1 × 0.8 cm = 0.39” × 0.31”

Former collection of Carles Curto (duplicates)



Order
Dioptase
Dioptase  

CP69AH4: Aggregate of prismatic Dioptase crystals with acute rhombohedral terminations. They are translucent, very bright, and have a very deep and uniform color. We’ll send to the buyer the original label and also a copy of the computer card with the full text in the collection catalog.
'Mbumba, Pimbi Hill, Mindouli, Mindouli District, Pool Department  Republic of the Congo

Specimen size: 4.9 × 4.3 × 3.3 cm = 1.93” × 1.69” × 1.30”

Main crystal size: 2.8 × 1.4 cm = 1.10” × 0.55”

Former collection of Carles Curto (duplicates)



Dioptase. Front
Front
Dioptase. Top
Top
Dioptase.
Sold
Descloizite with Calcite
Descloizite with Calcite. Front
Front
Descloizite with Calcite. Rear
Rear
Descloizite with Calcite. Side
Side
Descloizite with Calcite  

CA14AM1: Parallel floater growths of very sharp tabular Descloizite crystals, translucent, with good luster, and partially covered by small rhombohedral Calcite crystals.
The specimen comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Berg Aukas, Grootfontein District, Otjozondjupa Region  Namibia (±1973)

Specimen size: 3 × 2.4 × 1 cm = 1.18” × 0.94” × 0.39”

Main crystal size: 1.4 × 0.9 cm = 0.55” × 0.35”

Calcite fluorescent long & short UV

Former collection of Carles Curto (duplicates)



Sold
Arfvedsonite with Orthoclase
Arfvedsonite with Orthoclase  

CB46AJ7: Very sharp Arfvedsonite crystal with good terminal faces and with parallel growths. It is very aerial and implanted on a matrix of twinned Orthoclase crystals. The sample is one of the first well-known examples found of this species at Malawi, at the beginning of the XXI century.
Mount Malosa, Zomba District  Malawi

Specimen size: 4.2 × 4.2 × 4.1 cm = 1.65” × 1.65” × 1.61”

Main crystal size: 3 × 1.9 cm = 1.18” × 0.75”

Former collection of Carles Curto (duplicates)



Arfvedsonite with Orthoclase. Front
Front
Arfvedsonite with Orthoclase. Side
Side
Sold
Senegalite with Turquoise and Crandallite
Senegalite with Turquoise and Crandallite. Senegalite with Turquoise and Crandallite.
Senegalite with Turquoise and Crandallite  

CR27AJ7: Spheroidal growths of very sharp Senegalite crystals with very well defined faces and edges, bright with intense yellow color and on matrix with pale blue Turquoise and reddish brown Crandallite. The sample is from the type locality for the species.
Kourou Diakouma Mount, Saraya, Tambacounda Region  Senegal (2007-2008)

Specimen size: 5.2 × 3.3 × 3.6 cm = 2.05” × 1.30” × 1.42”

Main crystal size: 0.1 × 0.1 cm = 0.04” × 0.04”

Type locality

Former collection of Carles Curto (duplicates)



Sold
Gold
Gold  

CA86AJ7: Spongy aggregates and small acicular Gold crystals tha are very bright and on matrix with white Quartz.
Sheba Mine, Barberton, Ehlanzeni District, Mpumalanga Province  South Africa

Specimen size: 3.5 × 2.5 × 1.7 cm = 1.38” × 0.98” × 0.67”

Former collection of Carles Curto (duplicates)



Gold.
Sold

Tsumeb

Dioptase with Dolomite
Dioptase with Dolomite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Dioptase with Dolomite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén

Recorded under neon light
Dioptase with Dolomite
 

CFB26AP1: Dioptase crystals more isolated than usual for the deposit. Very profiled, with elongated prisms and very sharp rhombohedral terminations. Translucent, shiny, with an intense color, and on matrix with white rhombohedral Dolomite crystals.
The specimen comes from the duplicates of the Carles Curto collection (number 1981.15), whose label and computer entry we will send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 3.9 × 3.6 × 2.6 cm = 1.54” × 1.42” × 1.02”

Main crystal size: 0.9 × 0.4 cm = 0.35” × 0.16”

Former collection of Carles Curto (duplicates)



Order
Cerussite

Recorded under neon light
Cerussite
 

CMN27AO1: Very sharp double floater twin of flattened Cerussite crystals with sharp, transparent, lustrous and colorless terminations. A high quality Tsumeb classic.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 4.4 × 3.3 × 2.1 cm = 1.73” × 1.30” × 0.83”

Main crystal size: 3.9 × 2.1 cm = 1.54” × 0.83”

Minor fluorescence short UV

Former collection of Carles Curto (duplicates)



Cerussite. Front
Front
Cerussite. Top
Top
Sold
Malachite after Azurite with Cerussite
Malachite after Azurite with Cerussite.
Malachite after Azurite with Cerussite  

CK13AL4: Malachite pseudomorphs after elongated Azurite crystals with sharp faces and edges some of them doubly terminated. On matrix, with unaltered Azurite crystals and Cerussite twins.
The specimen comes from the Carles Curto collection, whose label and catalogue information we will send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 3.3 × 2.7 × 1.6 cm = 1.30” × 1.06” × 0.63”

Main crystal size: 1.2 × 0.4 cm = 0.47” × 0.16”

Former collection of Carles Curto (duplicates)

Cerussite minor fluorescence long & short UV



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Smithsonite
Smithsonite  

CR46AI3: Druse of rhombohedral Smithsonite crystals on matrix. They are well defined with fine growth striations and are translucent, bright and have a uniform and attractive pinkish color.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 4.2 × 3.7 × 3.1 cm = 1.65” × 1.46” × 1.22”

Main crystal size: 1 × 0.7 cm = 0.39” × 0.28”

Former collection of Carles Curto (duplicates)



Smithsonite.
Sold
Wulfenite
Wulfenite. Wulfenite.
Wulfenite  

CB59AL8: Very sharp lamellar crystals of Wulfenite with notably distinct dipyramid faces, great luster and a color between yellow and cream. On matrix.
The specimen, from one of the most classic localities for the species, comes from the Carles Curto collection whose label and catalogue entry we will send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 4.6 × 3.1 × 2.1 cm = 1.81” × 1.22” × 0.83”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”

Former collection of Carles Curto (duplicates)



Order
Germanite
Germanite  

CA14AJ7: Typical granular Germanite aggregate with a polished surface to better appreciate the characteristics of this rare copper, iron and germaniun sulphosalt. With a pinkish gray color and is with Renierite that has a more intense pink color, and black Tennantite. The sample is from the type locality for the species.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1981)

Specimen size: 6.2 × 3.8 × 2.3 cm = 2.44” × 1.50” × 0.91”

Type locality

Former collection of Carles Curto (duplicates)



Germanite. Front
Front
Germanite. Side
Side
Sold

Brazil

'lepidolite' with Orthoclase
'lepidolite' with Orthoclase.

Recorded under neon light
'lepidolite' with Orthoclase
 

CTM14AO0: Group of 'lepidolite' with a prismatic shape, with good luster and a very deep and uniform color, on an Orthoclase matrix.
Virgem da Lapa, Jequitinhonha, Minas Gerais  Brazil

Specimen size: 4 × 3.9 × 3.3 cm = 1.57” × 1.54” × 1.30”

Main crystal size: 3.3 × 1,8 cm = 1.30” × 0.39”

Former collection of Carles Curto (duplicates)



Sold
Beryl (variety aquamarine)

Recorded under neon light
Beryl (variety aquamarine)
 

CCX87AO0: Beryl crystal (aquamarine variety), very rich in crystal forms in the terminal zone with various pyramid faces and the flat surface of the pinacoid. Very transparent, with a bright luster and a uniform soft green color and with vertical dissolution channels inside.
Catuji, Mucuri Valley, Minas Gerais  Brazil (±1974)

Specimen size: 3.2 × 2.1 × 1.8 cm = 1.26” × 0.83” × 0.71”

Former collection of Carles Curto (duplicates)



Beryl (variety aquamarine). Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Beryl (variety aquamarine). Rear / Photo: Joaquim Callén
Rear / Photo: Joaquim Callén
Beryl (variety aquamarine). Top / Photo: Joaquim Callén
Top / Photo: Joaquim Callén
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Elbaite (variety verdelite)
Elbaite (variety verdelite). Front
Front
Elbaite (variety verdelite). Rear
Rear
Elbaite (variety verdelite). Top
Top

Recorded under neon light
Elbaite (variety verdelite)
 

CMP68AO1: Doubly terminated floater crystal of Elbaite (verdelite variety) with very flattened shapes and transparent. With great luster and an intense and uniform green color.
Governador Valadares, Vale do Rio Doce, Minas Gerais  Brazil

Specimen size: 7.3 × 0.7 × 0.3 cm = 2.87” × 0.28” × 0.12”

Former collection of Carles Curto (duplicates)



Order
Elbaite (variety rubellite)
Elbaite (variety rubellite)  

CM98AM4: Elbaite crystal (rubellite variety) with a parallel termination, very rich in faces, with good luster and color zoning in different tones.
The specimen, referenced in mindat.org (Mindat ID: U09-1R1) comes from the Carlos Curto collection (number 1989.08) whose label and computer catalogue entry we will send to the buyer.
Jenipapo District, Itinga, Jequitinhonha, Minas Gerais  Brazil (±1989)

Specimen size: 5.8 × 1.7 × 1.4 cm = 2.28” × 0.67” × 0.55”

Main crystal size: 5.8 × 1.7 cm = 2.28” × 0.67”

Former collection of Carles Curto (duplicates)

minID: U09-1R1



Elbaite (variety rubellite). Front
Front
Elbaite (variety rubellite). Rear
Rear
Elbaite (variety rubellite). Top
Top
Sold
Scolecite with Fluorapophyllite-(K)
Scolecite with Fluorapophyllite-(K).
Scolecite with Fluorapophyllite-(K)  

CT13AM1: Group of three thick Scolecite crystals with sharp faces and edges and perfect terminations, which is rare for the species. The crystals are transparent to translucent, lustrous, and are covered with small, colorless, equant crystals of Fluorapophyllite-(K). The specimen comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Das Antas tunnel, Alto Uruguai Region, Rio Grande do Sul  Brazil (±1969)

Specimen size: 6.1 × 1.8 × 1.3 cm = 2.40” × 0.71” × 0.51”

Main crystal size: 6.1 × 1.3 cm = 2.40” × 0.51”

Former collection of Carles Curto (duplicates)



Sold

South America (excl. Brazil)

Copper
Copper  

CY96AM5: Arborescent growth of very shiny Copper crystals with very well defined dodecahedron forms. An excellent miniature that comes from the Carles Curto collection (number 1984.24), whose label and computer file we will send to the buyer.
Corocoro, Pacajes Province, La Paz Department  Bolivia

Specimen size: 3.2 × 2.7 × 1.6 cm = 1.26” × 1.06” × 0.63”

Main crystal size: 0.8 × 0.5 cm = 0.31” × 0.20”

Former collection of Carles Curto (duplicates)



Copper. Copper.
Order
Paravauxite
Paravauxite. Paravauxite.
Paravauxite  

MV14AH4: Very sharp Paravauxite crystals on a rock matrix. The crystals are pearly white, translucent and very bright. The sample is from the type locality for the species. We’ll send to the buyer the original label and also a copy of the computer card with the full text in the collection catalog.
Siglo Veinte Mine, Llallagua, Rafael Bustillo Province, Potosí Department  Bolivia

Specimen size: 4.6 × 4.1 × 1.6 cm = 1.81” × 1.61” × 0.63”

Main crystal size: 0.6 × 0.1 cm = 0.24” × 0.04”

Former collection of Carles Curto (duplicates)



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Franckeite with Stannite and Zinkenite
Franckeite with Stannite and Zinkenite  

CF69AJ4: Radial groups of very sharp and well defined flattened prismatic Franckeite crystals with an implanted dipyramidal Stannite crystal and small acicular Zinkenite crystals.
The sample is from the Carles Curto collection whose label and catalog card we will send to the buyer.
San José Mine, Oruro City, Cercado Province, Oruro Department  Bolivia (±1987)

Specimen size: 7.6 × 3.9 × 5.6 cm = 2.99” × 1.54” × 2.20”

Main crystal size: 1.2 × 1 cm = 0.47” × 0.39”

Former collection of Carles Curto (duplicates)



Franckeite with Stannite and Zinkenite. Franckeite with Stannite and Zinkenite.
Order
Copper with Malachite
Copper with Malachite. Front
Front
Copper with Malachite. Rear
Rear
Copper with Malachite  

CR14AM1: Arborescent growth of flattened Copper crystals with partial coatings of Malachite. This specimen was dug in the 1960s, and comes to us from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Copiapó Province, Atacama Region  Chile (±1976)

Specimen size: 6.8 × 6.3 × 0.2 cm = 2.68” × 2.48” × 0.08”

Former collection of Carles Curto (duplicates)



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China

Löllingite with Dolomite
Löllingite with Dolomite  

CT26AI7: Rosettes of lenticular Löllingite crystals with polycrystalline growths, very well defined for the species. They are bright and have a single rhombohedral Dolomite crystal attached. The sample is from the Carlos Curto collection whose original label and also a copy of the computer card with the full text in the collection catalog we’ll send to the buyer.
Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Ulanhad (Chifeng), Inner Mongolia Autonomous Region  China (±2014)

Specimen size: 5.4 × 4.6 × 3.8 cm = 2.13” × 1.81” × 1.50”

Calcite fluorescent short UV

Former collection of Carles Curto (duplicates)



Löllingite with Dolomite. Front
Front
Löllingite with Dolomite. Rear
Rear
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Babingtonite with Prehnite
Babingtonite with Prehnite. Front
Front
Babingtonite with Prehnite. Rear
Rear
Babingtonite with Prehnite.
Babingtonite with Prehnite  

CB69AI3: Very aerial group of very sharp and flattened crystals, a lot of them doubly terminated. They are bright with a deep black color and are on a matrix of botryoidal Prehnite. These Chinese Babingtonites have almost disappeared from the mineral market and the best are those that first appeared.
Babingtonite occurrences, Qiaojia, Zhaotong Prefecture, Yunnan Province  China (±2008)

Specimen size: 8.3 × 4 × 3.2 cm = 3.27” × 1.57” × 1.26”

Main crystal size: 2.3 × 1.7 cm = 0.91” × 0.67”

Former collection of Carles Curto (duplicates)



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Asia - Australia

Pakistan - Afghanistan

Beryl (variety aquamarine) on Albite
Beryl (variety aquamarine) on Albite  

MV87AH6: Parallel growth of two doubly terminated Beryl (aquamarine variety) crystals, with a flat termination on one end and very well defined acute pyramids on the other end. They are transparent, very bright with a pale and uniform blue color and are on a matrix of tabular Albite crystals. We’ll send to the buyer the original label and also a copy of the computer card with the full collection catalog text.
Shengus (Shingus), Baltistan District, Gilgit-Baltistan (Northern Areas)  Pakistan (±1985)

Specimen size: 3.6 × 3.5 × 1.7 cm = 1.42” × 1.38” × 0.67”

Main crystal size: 3.6 × 1.2 cm = 1.42” × 0.47”

Former collection of Carles Curto (duplicates)



Beryl (variety aquamarine) on Albite. Front
Front
Beryl (variety aquamarine) on Albite. Rear
Rear
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Beryllonite
Beryllonite. Front
Front
Beryllonite. Rear
Rear
Beryllonite. Bottom
Bottom
Beryllonite  

CQ67AL4: Parallel growth of very elongated snow-white crystals, with polycrystalline pyramidal terminations, and pearly luster. Beryllonite, a phosphate of sodium and beryllium, is one of the rare species that is well crystallized in Pakistani pegmatites.
The specimen comes from the Carles Curto collection, whose label and catalogue information we will send to the buyer.
Nagar, Hunza Valley, Nagar District, Gilgit-Baltistan (Northern Areas)  Pakistan

Specimen size: 7.4 × 3.5 × 2.5 cm = 2.91” × 1.38” × 0.98”

Fluorescent long & short UV

Former collection of Carles Curto (duplicates)



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Elbaite with 'lepidolite' and Quartz

Recorded under neon light
Elbaite with 'lepidolite' and Quartz
 

CPQ37AO1: Doubly terminated Elbaite crystal with very sharp crystal forms and perfect terminations, between transparent and translucent, lustrous, and zoned in two halves, green at the top and pastel pink tones at the bottom. On matrix, with Quartz crystals and lamellar 'lepidolite' crystals.
Mawi Pegmatite, Nilaw-Kolum, Du Ab District, Nuristan Province  Afghanistan (±1991)

Specimen size: 3.1 × 2.2 × 2.2 cm = 1.22” × 0.87” × 0.87”

Main crystal size: 2.8 × 0.5 cm = 1.10” × 0.20”

Former collection of Carles Curto (duplicates)



Elbaite with 'lepidolite' and Quartz. Elbaite with 'lepidolite' and Quartz.
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Lazurite with Calcite
Lazurite with Calcite. Front
Front
Lazurite with Calcite. Rear
Rear
Lazurite with Calcite  

CB62AM1: Complete dodecahedral crystal with very well defined faces and edges, of an intense and uniform color and on a small matrix of Calcite. This specimen is from the type locality, and comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
Sar-e Sang, Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Province  Afghanistan

Specimen size: 1.8 × 1.6 × 1.3 cm = 0.71” × 0.63” × 0.51”

Main crystal size: 17 × 1.5 cm = 6.69” × 0.59”

Former collection of Carles Curto (duplicates)

Type locality



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Dravite with Muscovite

Recorded under neon light
Dravite with Muscovite
 

CCF46AO0: Isolated Dravite crystals with a flattened bipyramidal shape, with perfectly sharp crystal forms, translucent, with good luster and a nice brown color with orange tones, on a Muscovite matrix.
Sar-e Sang, Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Province  Afghanistan (±2011)

Specimen size: 4.0 × 5.6 × 2.3 cm = 1.57” × 2.20” × 0.91”

Main crystal size: 1.2 × 1.1 cm = 0.47” × 0.43”

Former collection of Carles Curto (duplicates)



Dravite with Muscovite. Dravite with Muscovite.
Order

Australia

Gold with Quartz
Gold with Quartz. Gold with Quartz.

Recorded under neon light
Gold with Quartz
 

CMR50AO8: Very shiny lamellar growths of Gold, on a Quartz matrix with reddish Hematite inclusions.
This specimen comes from the collection of duplicates of Carlos Curto (number 1979.30), whose label we will send to the buyer.
Ballarat, Victoria  Australia (±1979)

Specimen size: 4.4 × 2.7 × 2.3 cm = 1.73” × 1.06” × 0.91”

Main crystal size: 2.4 × 0.9 cm = 0.94” × 0.35”

Former collection of Carles Curto (duplicates)



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Silver

Recorded under neon light
Silver
 

CTB48AO0: Dendritic growth of extremely elongated Silver crystals, with good terminations and, as a whole, a very attractive aesthetic, as is often the case with pieces from this deposit. An old Australian classic of excellent quality.
Endeavor Mine (Elura Mine), Cobar, Robinson County, New South Wales  Australia

Specimen size: 6.2 × 4.7 × 0.8 cm = 2.44” × 1.85” × 0.31”

Main crystal size: 4.8 × 0.3 cm = 1.89” × 0.12”

Former collection of Carles Curto (duplicates)



Silver. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Silver. Rear / Photo: Joaquim Callén
Rear / Photo: Joaquim Callén
Silver. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
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Atacamite
Atacamite. Front
Front
Atacamite. Top
Top
Atacamite  

CX13AJ7: Groups, on matrix of elonagated Atacamite crystals with very well defined faces and edges and perfect terminal faces. They are bright and have a very deep color. The sample is from one of the more classic, even mythical, localities for the species.
Wallaroo Mine, Kadina, Yorke Peninsula, South Australia  Australia

Specimen size: 2 × 1.4 × 0.9 cm = 0.79” × 0.55” × 0.35”

Main crystal size: 0.3 × 0.1 cm = 0.12” × 0.04”

Former collection of Carles Curto (duplicates)



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Copper
Copper  

CE16AL3: Floater group of Copper crystals with an unusual cubic habit, beveled by the rhombododecahedron. The specimen comes from a classic Australian deposit.
The specimen comes from the Carles Curto collection (no. 2007.09), whose label and information sheet we will send to the buyer.
Boddington Mine, Boddington, Peel, Western Australia  Australia

Specimen size: 5.6 × 5.3 × 2.7 cm = 2.20” × 2.09” × 1.06”

Main crystal size: 0.1 × 0.1 cm = 0.04” × 0.04”

Former collection of Carles Curto (duplicates)



Copper. Copper.
Sold

Scheelite
Scheelite.
Scheelite  

CE13AJ7: Floater and complete dipyramidal Scheelite crystal. It is translucent, bright, and has the rich color typical of the already mythical Tae Wha mine.
Tae Hwa Mine, Neungam-ri, Angseong-myeon, Chungju, Chungcheongbukdo  South Korea

Specimen size: 2.8 × 1.8 × 1.5 cm = 1.10” × 0.71” × 0.59”

Fluorescent short UV

Former collection of Carles Curto (duplicates)



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