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Arsenopyrite & Sphalerite Var Marmatite

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SLN770436

Arsenopyrite & Sphalerite Var Marmatite

Description Tabs

Description
Locality: 
Julcani Mine, Julcani, Angaraes Province, Huancavelica Department, Peru
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.3 × 9.6 × 7.7 cm
Weight: 
682.00gr
Description

Interesting and important specimen from an old collection of Arsenopyrite in a myriad of rare acicular crystals of excellent brightness most of which have a natural termination associated with small sparkling black Sphalerite var Marmatite crystals

Mineral Data
What's on the rock

Arsenopyrite

Formula: 
FeAsS
Strunz: 
2.EB.20
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

Sphalerite

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

Marmatite

Variety Of: 

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Hardness: 
3.5 - 4.0
Formula: 
(Zn,Fe)S
Hardness: 
0.0
Colour: 
Black

Seller Information

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