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Tourmaline Var Schorl

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SYA771994

Tourmaline Var Schorl

Classic Locality

Description Tabs

Description
Locality: 
Sonnenberg, St Andreasberg District, Lower Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 7 × 4.5 cm
Description

Lustrous black schorl crystals on white quartz crystals.

Rich specimen from an old classic german locality.

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
Not Sold

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