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Sphalerite Var Marmatite & Calcite

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SLN631543

Sphalerite Var Marmatite & Calcite

Description Tabs

Description
Locality: 
Madan, Smolyan Oblast, Bulgaria
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
6.7 × 12 × 7.8 cm
Weight: 
685.00gr
Description

Beautiful specimen from Bulgaria with an aesthetic association of sphalerite var marmatite in several crystals oof excellent brightness and transparent white calcite crystals
 

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

Calcite

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

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