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Schorl & Dolomite

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SHS746290

Schorl & Dolomite

Description Tabs

Description
Locality: 
Banská Štiavnica, Banská Štiavnica County, Banská Bystrica Region, Slovakia (Slovak Republic)
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.4 × 2.8 × 1.7 cm
Description

Nice quartz crystals on dolomite

Mineral Data
What's on the rock

Schorl

Formula: 
Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.0

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White