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Stephanite Proustite & Acanthite

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RHT542371

Stephanite Proustite & Acanthite

Classic Locality

Description Tabs

Description
Locality: 
Naica Mine, Naica, Saucillo Municipality, Chihuahua, Mexico
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.5 × 2.5 cm
Weight: 
50.00gr
Description

A very rare combination of three silver minerals.

Some pseudomorph of acanthite after stephanite?

Small proustite crystals on top.

Mineral Data
What's on the rock

Stephanite

Formula: 
Ag5SbS4
Strunz: 
2.GB.10
Crystal System: 
Orthorhombic - Pyramidal
Hardness: 
2.0 - 2.5
Type Locality: 
Freiberg District, Erzgebirge, Saxony, Germany

Proustite

Formula: 
Ag3AsS3
Strunz: 
2.GA.05
Crystal System: 
Trigonal
Hardness: 
2.0 - 2.5

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