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Sphalerite Var Marmatite & Quartz

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SLN772924

Sphalerite Var Marmatite & Quartz

Description Tabs

Description
Locality: 
Casapalca Mine, Huarochiri Province, Lima Department, Peru
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
4.3 × 8.6 × 7.3 cm
Largest Crystal: 
2.80cm
Weight: 
385.00gr
Description

Interesting specimen which was part of an old collection with a lot of blak Sphalerite var Marmatite crystals of excellent brightness associated with Hyaline Quartz of extreme transparency. The biggest Marmatite crystal measures 2.8 X 2.6 Cm

Mineral Data
What's on the rock

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

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