Mineral specimens search results

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Descriptive text by Carles Curto: Cubic crystal with hopper faces, with small scalenohedral, doubly terminated Calcite crystals.
San Carlos Mine, La Luz, Municipio Guanajuato, Guanajuato Mexico (+1986)
Specimen size: 1.7 × 1.2 × 1.0 cm = 0.67” × 0.47” × 0.39”

JFD104AO2: Acanthite with Calcite

One of the first well-crystallized acanthites seen from Imiter. Although specimens with sharper crystals came out later, this Acanthite is not bad at all as it is well accompanied by groups of small pink Calcite rhombohedra.
Imiter Mine, Jebel Saghro, Imiter District, Tinghir Province, Drâa-Tafilalet Region Morocco (2007)
Specimen size: 4.4 × 4 × 3.1 cm = 1.73” × 1.57” × 1.22”

Main crystal size: 2.4 × 1.1 cm = 0.94” × 0.43”

TX36AL6: Acanthite with Calcite

Very distinct Acanthite crystals, with well defined faces and edges, good luster, on a matrix of white Calcite crystals. An European classic.
Freiberg District, Erzgebirgskreis, Saxony/Sachsen Germany
Specimen size: 4 × 2.4 × 2.2 cm = 1.57” × 0.94” × 0.87”

TB92J3: Acanthite with Calcite

A magnificent sample, not only for the crystal size and its well defined forms. It is from a classic locality well known for Silver but where Acanthite was (and is) very uncommon.
It is from Earl L. Calvert collection and we’ll send the label with the specimen, to the buyer.
Kongsberg mining district, Kongsberg Norway
Specimen size: 3.9 × 3.4 × 1.5 cm = 1.54” × 1.34” × 0.59”

Main crystal size: 1.8 × 0.9 cm = 0.71” × 0.35”

TV69Z7: Acanthite with Calcite

Aggregate of very sharp cubic Acanthite crystals that coexist with skeletal and hooked forms of the same mineral. The aggregate, on a Calcite matrix, shows a magnificent contrast between the snowy white Calcite and the luster and relief of the very aerial Acanthite.
San Juan de Rayas Mine, Guanajuato, Municipio Guanajuato Mexico (03/2013)
Specimen size: 8.7 × 6.1 × 3.4 cm = 3.43” × 2.40” × 1.34”

AP50T7: Acanthite with Calcite

Centered and parallel growths of very aerial and elongated crystals. They have well defined faces and edges and hollow growths, with a matrix of Calcite crystals. Great sample from the Silvane collection, with a wide pedigree reflected on several labels, one of them from the prestigious Bill and Carol Smith collection, which we’ll send to the buyer.
San Luis shaft, level 480, Fresnillo de González Echeverría (Fresnillo), Municipio Fresnillo, Zacatecas Mexico
Specimen size: 6 × 4.3 × 2.2 cm = 2.36” × 1.69” × 0.87”

Main crystal size: 1 × 0.2 cm = 0.39” × 0.08”

TA48AH1: Acanthite with Chalcopyrite

A novelty at Tucson 2018. Very aerial growth of very sharp octahedral Acanthite crystals with epigenic Chalcopyrite and on matrix with Quartz. The sample has been analyzed and we’ll send a copy of its analysis to the buyer.
San José Mine, San José del Progreso, Municipìo San José del Progreso, Ocotlán District, Valles Centrales Region, Oaxaca Mexico (01/2018)
Specimen size: 4.4 × 2.5 × 2.9 cm = 1.73” × 0.98” × 1.14”

ER47AJ1: Acanthite with Dolomite

Very sharp and very bright Acanthite crystals that are implanted on a matrix coated by rhombohedral Dolomite crystals between yellow and pale brown in color. An excellent German classic that was in the Moutet collection, at Marseille. With the sample we will send to the buyer an old label from the prestigious Deyrolle dealers, Paris.
Freiberg District, Erzgebirgskreis, Saxony/Sachsen Germany
Specimen size: 4.2 × 3.6 × 2.5 cm = 1.65” × 1.42” × 0.98”

Main crystal size: 1.2 × 0.8 cm = 0.47” × 0.31”

CR46AM5: Acanthite with Dolomite and Pyrite

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”

TV47AH6: Acanthite with Proustite

Isolated cubic crystal, something that is very uncommon with Acanthite, deformed but with very well defined faces and edges. It is bright and on a Calcite and Quartz matrix with massive Proustite. The sample is from a historic mine, very well known for Proustite crystals but where crystallized Acanthite is rare. We’ll send to the buyer the original label and also a copy of the computer card with the full collection catalog text.
Dolores Mine, Chañarcillo, Copiapó Province, Atacama Region Chile
Specimen size: 5 × 4.5 × 2.2 cm = 1.97” × 1.77” × 0.87”

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

ML36G5: Acanthite with Proustite

A group of octahedral crystals, very well shaped, aerial and, which is quite rare on the samples from Imiter, they are lustrous. All over the piece there are a lot of small red Proustite crystals.
Imiter Mine, Jebel Saghro, Imiter District, Tinghir Province, Drâa-Tafilalet Region Morocco (09/2005)
Specimen size: 2.5 × 1.1 × 1.4 cm = 0.98” × 0.43” × 0.55”

JFD145AO6: Acanthite with Pyrite

Very large, very lustrous, this is an Acanthite crystal that stands out for its size and its polysynthetic growths. From the good years for acanthites in Imiter, years that have not returned since there are currently very few good specimens of Acanthite coming from there.
Imiter Mine, Jebel Saghro, Imiter District, Tinghir Province, Drâa-Tafilalet Region Morocco (12/2007)
Specimen size: 8.1 × 2.6 × 1.1 cm = 3.19” × 1.02” × 0.43”

EK47L1: Acanthite with Pyrite

Complex crystal, well defined and elongated, with multiple faces, some of them curved. Really good size, on an Acanthite base with small cubic Pyrite crystals.
Uchucchacua Mine, work 012, level 400, Oyón Province, Lima Department Peru (01/2007)
Specimen size: 4.2 × 1.3 × 1 cm = 1.65” × 0.51” × 0.39”

EF89L9: Acanthite with Pyrite and Calcite

A novelty from the Sainte-Marie-aux-Mines Mineral Show. Uniaxial and parallel growth of octahedral Acanthite pseudomorphous after Argentite crystals. With very well defined faces and edges, these specimens have an exceptional luster, much better than other Acanthite specimens from Imiter we have seen before. On the back side of the sample one can see small Pyrite and Calcite crystals.
Imiter Mine, Jebel Saghro, Imiter District, Tinghir Province, Drâa-Tafilalet Region Morocco (12/2007)
Specimen size: 4 × 4 × 2.5 cm = 1.57” × 1.57” × 0.98”

Main crystal size: 2.5 × 2 cm = 0.98” × 0.79”

TF86AH5: Acanthite with Quartz and Pyrite

Acanthite crystals with the dominant forms of the cube some of whose faces have very deep hollowed growths. One of the more dominant and very aerial crystals is extraordinarily elongated. They are on matrix with Quartz and small and very bright Pyrite crystals.
The sample, a great classic, is from the David and Emily Stoudt collection of Houston, Texas, and previously in the Kenneth C. Raba and Arson collections in New York. We’ll send the three labels to the buyer.
San Juan de Rayas Mine, Guanajuato, Municipio Guanajuato Mexico
Specimen size: 6.5 × 3.2 × 3.5 cm = 2.56” × 1.26” × 1.38”

JFD218AP7: Acanthite with Siderite

Well balanced, harmonious, and with elongated Siderite crystals to provide some contrast. This Acanthite has several virtues, being, unlike many others from Imiter, lustrous and not rough surfaced at all.
Imiter Mine, Jebel Saghro, Imiter District, Tinghir Province, Drâa-Tafilalet Region Morocco (09/2005)
Specimen size: 2.4 × 1.9 × 1.3 cm = 0.94” × 0.75” × 0.51”

Main crystal size: 0.9 × 0.5 cm = 0.35” × 0.20”

TX89AN0: Acanthite with Siderite and Proustite

Acanthite crystals on matrix, very sharp, with coatings in some areas of yellow Siderite. Proustite is also present and in general the specimen is notable both for the definition of the Acanthite crystals and for the fact that they are on a rock matrix, which is very rare in this deposit.
Imiter Mine, Jebel Saghro, Imiter District, Tinghir Province, Drâa-Tafilalet Region Morocco (2020)
Specimen size: 14.2 × 10.3 × 5 cm = 5.59” × 4.06” × 1.97”

TRB46AN4: Acanthite with Silver

Group of cubo-octahedral crystals of Acanthite rich in additional crystal forms, lustrous, and with hooked growths of native Silver crystals. We will ship the specimen in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the label.
Uchucchacua Mine, Oyón Province, Lima Department Peru
Specimen size: 2.3 × 1.6 × 1.2 cm = 0.91” × 0.63” × 0.47”

Main crystal size: 1.6 × 1.4 cm = 0.63” × 0.55”

TG58AF4: Acanthite with Silver

Floater aggregate of cubo-octahedral crystals with very well defined faces and edges, with a very good length and with some hoppered surfaces. The luster is excellent for the species. It’s really a “powerful” piece and deserves to be in any Museum in the World. It also has small groups of wire Silver forming "nests".
Hongda Mine, Xiaoqinggou, Lingqiu, Datong Prefecture, Shanxi Province China (08/2016)
Specimen size: 7.2 × 6.5 × 4.7 cm = 2.83” × 2.56” × 1.85”

EA56K0: Acanthite with Silver

Group of cuboctahedral crystals with strange curvatures and deformations. Hooked and coiled wirelike crystals of native Silver contrast with the darker Acanthite.
66 line Mine, Gaoliangchun, Lingqiu, Datong Prefecture, Shanxi Province China (2007)
Specimen size: 3.9 × 2.8 × 3.6 cm = 1.54” × 1.10” × 1.42”

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

EC48K0: Acanthite with Silver

Very stylized group of deformed cubic crystals. Hooked and coiled wirelike crystals of native Silver contrast with the darker Acanthite.
66 line Mine, Gaoliangchun, Lingqiu, Datong Prefecture, Shanxi Province China (2007)
Specimen size: 3.8 × 2 × 2.6 cm = 1.50” × 0.79” × 1.02”

EG48I1: Acanthite with Silver

The crystal is very well-defined and rich with faces with the dominion of the cube. On one end there is an esthetic growth of native Silver, bright and unaltered.
66 line Mine, Gaoliangchun, Lingqiu, Datong Prefecture, Shanxi Province China (2006)
Specimen size: 2 × 1.6 × 1.4 cm = 0.79” × 0.63” × 0.55”

ED89K0: Acanthite with Silver

Very stylized group of deformed cubic crystals. An aerial branch is partially covered by mossy native Silver that contrasts with the darker Acanthite. Very esthetic.
66 line Mine, Gaoliangchun, Lingqiu, Datong Prefecture, Shanxi Province China (2007)
Specimen size: 5.2 × 2.5 × 2.1 cm = 2.05” × 0.98” × 0.83”

EK10I1: Acanthite with Silver

Group if very well-defined cubic crystals, with a small matrix of Quartz and partially covered by spongy groups of Silver, bright and unaltered.
The specimen has been published in the book 'China', by Berthold Ottens, on page 468.
66 line Mine, Gaoliangchun, Lingqiu, Datong Prefecture, Shanxi Province China (2006)
Specimen size: 3.5 × 2.8 × 2 cm = 1.38” × 1.10” × 0.79”

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

11AT12: Acanthite, Calcite

Aggregate of Acanthite crystals, with an intense luster, partially covering a matrix of white Calcite crystals, which provides a beautiful color contrast. Mining here focused on the extraction of silver and dates back to the middle of the 16th century.
Fresnillo de González Echeverría (Fresnillo), Municipio Fresnillo, Zacatecas Mexico
Specimen size: 2.2 × 2.0 × 1.3 cm = 0.87” × 0.79” × 0.51”

12720 results found.

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