Post-Tucson 2020 Update

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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


USA

Copper
Copper. Front
Front
Copper. Rear
Rear
 

TX71AL3: Arborescent growth of very aerial and individual crystals of Copper with curvatures on the faces and edges.
Cliff Mine, Phoenix, Keweenaw County, Michigan  USA

Specimen size: 11 × 5.6 × 2.3 cm = 4.33” × 2.20” × 0.91”

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




Order
Fluorapophyllite-(K) With Quartz and Prehnite
Fluorapophyllite-(K) With Quartz and Prehnite  

TT47AL3: Equidimensional Fluorapophyllite-(K) crystals, one of them clearly dominant, with an apparently cubic habit, with very well defined faces and edges, translucent white, on matrix, with Quartz and small white botryoidal aggregates of Prehnite. The specimen comes from a classic American locality for the species.
Paterson, Passaic County, New Jersey  USA (±1930)

Specimen size: 6.5 × 5 × 3.2 cm = 2.56” × 1.97” × 1.26”

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

Minor fluorescence long & short UV



Fluorapophyllite-(K) With Quartz and Prehnite. Fluorapophyllite-(K) With Quartz and Prehnite.
Order
Quartz (variety amethyst)
Quartz (variety amethyst). Front
Front
Quartz (variety amethyst). Side
Side
Quartz (variety amethyst). Top
Top
 

EE89AL3: Group of Quartz crystals (variety amethyst) transparent and bright. The color is selectively distributed, with the prism faces being practically colorless, slightly reddish colors on the pyramidal faces, and intense violet concentrated mainly around the terminal edges. The specimen comes from a classic American locality.
North Bend, King County, Washington  USA

Specimen size: 7.8 × 6.1 × 4.6 cm = 3.07” × 2.40” × 1.81”

Main crystal size: 4.7 × 2.4 cm = 1.85” × 0.94”




Order
Azurite with Malachite
 

MN91AL3: Group of slightly flattened Azurite crystals, with the dominant forms of the rhombohedron and polycrystalline growths on the faces, of a very vivid blue color, on matrix and partially covered with Malachite. From one of the great classic localities in Arizona, and with more color and better luster than usually found there.
Morenci Mine, Morenci, Copper Mountain District, Shannon Mountains, Greenlee County, Arizona  USA (±1995)

Specimen size: 5.5 × 4.4 × 2.9 cm = 2.17” × 1.73” × 1.14”

Main crystal size: 2 × 1.4 cm = 0.79” × 0.55”




Azurite with Malachite. Front
Front
Azurite with Malachite. Side
Side
Order

MEXICO

Mimetite
Mimetite. Front
Front
Mimetite. Side
Side
 

TB89AL3: Botryoidal growth, very aesthetic, of Mimetite with an intense fatty luster and zones of distinct colors that range from an intense lemon-yellow to orange-yellow. A Mexican classic.
San Pedro Corralitos, Municipio Casas Grandes, Chihuahua  Mexico

Specimen size: 3 × 1.5 × 2 cm = 1.18” × 0.59” × 0.79”




Order
Selenium-rich Acanthite with Selenium-rich Polybasite and Calcite
 

TF89AL3: Acanthite crystal growths (selenium-rich) with the dominant faces being the rhombododecahedron, an unusual form for the species, some of them with hoppered growths, associated with Polybasite crystals, likewise rich in selenium, Calcite, and coatings of small Pyrite crystals. Analyses of the specimen, of which we will send a copy to the buyer, indicate a high content of selenium in both the Acanthite and the Polybasite.
San José Mine, San José del Progreso, Municipěo San José del Progreso, Ocotlán District, Valles Centrales Region, Oaxaca  Mexico (01/2018)

Specimen size: 3.8 × 3.8 × 3.7 cm = 1.50” × 1.50” × 1.46”

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

Calcite fluorescent long & short UV



Selenium-rich Acanthite with Selenium-rich Polybasite and Calcite. Selenium-rich Acanthite with Selenium-rich Polybasite and Calcite.
Selenium-rich Acanthite with Selenium-rich Polybasite and Calcite.
Order

SPAIN

Fülöppite
Fülöppite. Fülöppite.
 

MD26AL3: Good specimen of this rare lead sulphantimonate, with rosette-like crystal aggregates on matrix, dark metallic grey in color. Fülöppite is one of the rare species associated with Stibnite in this mine.
Casualidad Mine, Cordillera de los Picachos, Bańos de Sierra Alhamilla, Pechina, Comarca Metropolitana de Almería, Almería, Andalusia  Spain (2014-2015)

Specimen size: 2.9 × 2.4 × 1.9 cm = 1.14” × 0.94” × 0.75”

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


€120 / US$138 / ¥15710 / AUD$187

Reservado
Sphalerite with Dolomite
 

NL13AL3: Polycrystalline growths with complex forms, with sharp edges and faces, slightly curved, transparent, very lustrous, with deep and uniform honey-brown color. This piece comes from some small artisanal finds that were made after the mine closed. There is currently no access to the galleries.
Las Mánforas Mine, Áliva mining area, Camaleńo, Comarca Liébana, Cantabria  Spain

Specimen size: 3.6 × 3.3 × 2.3 cm = 1.42” × 1.30” × 0.91”

Main crystal size: 1.9 × 1.6 cm = 0.75” × 0.63”




Sphalerite with Dolomite. Front
Front
Sphalerite with Dolomite. Light behind
Light behind
Order
Cinnabar with Calcite and Quartz
Cinnabar with Calcite and Quartz. Cinnabar with Calcite and Quartz.
 

NQ27AL3: Rhombohedral Cinnabar crystals, one of them clearly dominant and individual, translucent, shiny, very deep in color, on matrix, with small crystals of Calcite and Quartz
Almaden Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain (±1960-70)

Specimen size: 4.6 × 4 × 1.2 cm = 1.81” × 1.57” × 0.47”

Main crystal size: 0.6 × 0.4 cm = 0.24” × 0.16”




Order
Cinnabar with Dolomite
 

NP89AL3: Polycrystalline growths of transparent rhombohedral Cinnabar crystals, brilliant, on matrix, with aggregates of white rhombohedral Dolomite crystals.
Almaden Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain (±1960-70)

Specimen size: 7 × 6 × 2.5 cm = 2.76” × 2.36” × 0.98”

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




Cinnabar with Dolomite. Cinnabar with Dolomite.
Order
Quartz (variety amethyst) with Microcline
Quartz (variety amethyst) with Microcline.
 

NG8AL3: Scepter Quartz crystal (variety amethyst), with parallel growths in the lower parts, translucent, lustrous, and with very intense color. On a Microcline matrix.
Mas Sever Quarry, Massabč (Mas Ceber), Sils, Comarca La Selva, Girona / Gerona, Catalonia  Spain (10/2004)

Specimen size: 3 × 2.4 × 1.6 cm = 1.18” × 0.94” × 0.63”




Order
Quartz (variety smoky)
Quartz (variety smoky)  

DX66AL3: Group of very transparent smoky Quartz crystals on matrix, one of them clearly dominant and partially doubly terminated, with a group of smaller crystals, some of which are also doubly terminated, from the historic Montseny locality where the first finds of amethyst and quality smoky Quartz were made before the recent finds. The Daunis collection was, in the 70s-80s, a reference for local field collectors in the Barcelona area.
Les Mallorquines, Sils, Comarca La Selva, Girona / Gerona, Catalonia  Spain

Specimen size: 8 × 2.5 × 1.9 cm = 3.15” × 0.98” × 0.75”

Main crystal size: 6 × 2.1 cm = 2.36” × 0.83”

Former collection of Lluís Daunis



Quartz (variety smoky). Front
Front
Quartz (variety smoky). Rear
Rear
Order
Siderite with Quartz
Siderite with Quartz. Siderite with Quartz.
Siderite with Quartz  

NB89AL3: Powerful group of Quartz crystals displaying a dipyramidal habit, as the prism is mostly absent, covered by an epigenetic growth of small Siderite crystals. The size of the Quartz crystals and the quality of the piece is much higher than what is usually found in this deposit.
The specimen comes from the Miguel David Martínez collection, whose label we will send to the buyer along with a small poster that certifies that this specimen was displayed in the “Minerals of the Mediterranian 2014” exhibition at the 2014 Expominer Show.
San Valentín open pit, Sancti Espíritu, Sierra Minera de Cartagena-La Unión, La Unión, Comarca Campo de Cartagena, Murcia, Region of Murcia  Spain (±1990)

Specimen size: 14.7 × 9.3 × 5.5 cm = 5.79” × 3.66” × 2.17”

Main crystal size: 3.5 × 3.1 cm = 1.38” × 1.22”

Former collection of Miguel David Martínez



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