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Copiapó Province, Atacama Region, Chile

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Acanthite : Ag2S

Copiapó Province, Atacama Region, Chile

Good miniature with small crystals, which combine the cube and octahedron, and have well-defined faces and edges. Actually it is very difficult to obtain samples from this classic locality.
Copiapó, Atacama, Chile.
Specimen size: 1.6 x 1.4 x 1.1 cm
Main crystal size: 0.3 x 0.2 cm
With handwritten label from the Folch Collection
 © fabreminerals.comPhoto ID: 75380    View Count: 539

Acanthite : Ag2S

Copiapó Province, Atacama Region, Chile

Very aerial group of complex crystals, very rich with faces and considerably bright. Although on the label the only locality is Chile, we can presume, by its characteristics, it is from Copiapó area.
Copiapó, Atacama, Chile
Specimen size: 2.7 x 1.3 x 0.8 cm
Main crystal size: 0.7 x 0.4 cm
With handwritten label from the Folch ...
 © fabreminerals.comPhoto ID: 101240    View Count: 383

Acanthite : Ag2S, Calcite : CaCO3

Chañarcillo, Copiapó Province, Atacama Region, Chile

Acanthite crystals on calcite. At one time this specimen was in the collection of David Wilber. Scale at bottom of image is one inch with a rule at one cm.
Photo ID: 215985    View Count: 112

Acanthite : Ag2S

Chañarcillo, Copiapó Province, Atacama Region, Chile

Acanthite. Specimen in the Karabacek collection at Harvard #93075. This long closed locality has produced many good acanthite specimens, but today they are rarely offered for sale. Scale at bottom of image is one inch with a rule at one cm.
Photo ID: 215983    View Count: 104

Multiple photos availableAdamite : Zn2(AsO4)(OH)

Chañarcillo, Copiapó Province, Atacama Region, Chile

A group of fine mint green to emerald green Adamite (3 mm. across) laying on Goethite-Limonite. Not visible, there are also some Smithsonite rice-like xx and some Calchedony spheres. This sample shows two different Adamite colours, the mint green and on the other corner a colourless smooth wine. An old sample that has been mined many decades ago ...
 © maurizio diniPhoto ID: 245227    View Count: 34

Adamite (Var: Cuprian Adamite) : (Zn,Cu)2AsO4OH, Austinite : CaZn[OH|AsO4]

Veta Negra Mine, Pampa Larga district, Tierra Amarilla, Copiapó Province, Atacama Region, Chile

Cuprian adamite xls on austinite. Field of view: 3 mm
Photo and collection Antonio Borrelli
 © Antonio BorrelliPhoto ID: 67622    View Count: 381

Alumopharmacosiderite : KAl4[(OH)4|(AsO4)3] · 6-7H2O, Mansfieldite : AlAsO4·2H2O

Maria Catalina mine, Pampa Larga district, Tierra Amarilla, Copiapó Province, Atacama Region, Chile

Width of field 0.5 mm. Collection and photo Jesse Crawford. Compositing software CombineZP. Equipment: Nikon D-100 digital camera on a homemade microscope. Cubes of alumopharmacosiderite on a matrix of mansfieldite. The rounded structures in the lower right corner are mansfieldite.
 © 2008 Jesse CrawfordPhoto ID: 204778    View Count: 100

Aragonite : CaCO3, Arseniosiderite : Ca2Fe3+3[O2|(AsO4)3] · 3H2O

Veta Negra Mine, Pampa Larga district, Tierra Amarilla, Copiapó Province, Atacama Region, Chile

3 cm xls of Aragonite with Arseniosiderite on matriz; Veta Negra mine, Pampa Larga, Tierra Amarilla, Copiapo, Atacama region-Chile;field of view; 5x5-foto & coll by A.Molina
Photo ID: 104847    View Count: 228

Multiple photos availableArhbarite : Cu2Mg[(OH)3|AsO4], Conichalcite : CaCu[OH|AsO4]

Soledad mine, Copiapó Province, Atacama Region, Chile

This specimen consists of intense blue balls of Arhbarite in association with bright lime green balls of Conichalcite on a matrix of tiny Quartz crystals. The blue and green colors of these minerals are very electric-bright on this piece. Specimen measures 2.14cm x 1.85cm x 1.5cm.
 © Jasun McAvoyPhoto ID: 255480    View Count: 18

Arsenolamprite : As, Arsenic : As, Arsenolite : As2O3, Realgar : As4S4, Quartz : SiO2

Pampa Larga district, Tierra Amarilla, Copiapó Province, Atacama Region, Chile

This 4x5 cm specimen contains the two allotropes of Arsenic. Mark Mauthner photo, RWMW collection
 © RWMWPhoto ID: 10908    View Count: 799
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