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Calcite & Stellerite

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ESM622951

Calcite & Stellerite

Description Tabs

Description
Locality: 
Sokolovskoe Mine, Rudniy, Kostanay Region, Kazakhstan
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 6 × 3 cm
Description

Lustrous calcite crystals with tan coloured stellerite crystals on matrix

Mineral Data
What's on the rock

Calcite

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

Stellerite

Formula: 
Ca4(Si28Al8)O72·28H2O
Strunz: 
9.GE.15
Hardness: 
4.5
Type Locality: 
Mednyi Island, Commander Islands (Komandorskije ostrova), Bering Sea, Kamchatka Oblast', Far-Eastern Region, Russia...