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Rhodochrosite With Acanthite & Sphalerite

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SCH25521

Rhodochrosite With Acanthite & Sphalerite

Ex. Don Belsher

Description Tabs

Description
Locality: 
Santa Rita Mine, Morococha District, Yauli Province, Junín Department, Peru
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4 × 1.8 cm
Description

Dozens of gemmy and lustrous, olive-green sphalerite crystals in clusters are scattered with very bright groups of complex acanthite crystals on a mound of pale pink rhodochrosite.
Ex. Don Belsher collection with several labels. Superb combination from Peru!

Mineral Data
What's on the rock

Rhodochrosite

Formula: 
MnCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Cavnic Mine (Kapnikbánya), Cavnic (Kapnic; Kapnik), Maramureș Co., Romania

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

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0
schani