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Tourmaline Var Schorl

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GPM588997

Tourmaline Var Schorl

Description Tabs

Description
Locality: 
DSS Piława Górna Quarry, Piława Górna, Dzierżoniów County, Lower Silesian Voivodeship, Poland
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 7.2 × 6.5 cm
Description

Black schorl crystals in granitic pegmatite from Piława Górna quarry, Lower Silesia/ Poland. Crystals size up to 65 mm.

 

 

No. 132

Mineral Data
What's on the rock

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7

Schorl

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

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