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Acanthite In Calcite

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PJM134883

Acanthite In Calcite

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Description
Locality: 
Fresnillo de Gonzalez Echeverria, Fresnillo Municipality, Zacatecas, Mexico
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.4 × 1.4 cm
Description

An exquisite acanthite miniature from this famous silver mining district. Splendent, sharp, metallic-gray acanthite "flower bulbs" rest atop a "stalk" of smaller acanthites. All of the crystals have distinctive hoppering and meander over and through a white calcite matrix

Mineral Data
What's on the rock

Acanthite

Formula: 
Ag2S
Strunz: 
2.BA.35
Crystal System: 
Monoclinic - Prismatic
Hardness: 
2.0 - 2.5
Streak: 
lead grey
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White
Earthstones Australia

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All goods must be paid for prior to shipping, all bids are binding.