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Tourmaline

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KAT931026

Tourmaline

Type Locality

Description Tabs

Description
Locality: 
Dobrova pri Dravogradu, Dravograd, Slovenia
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.5 × 1.1 cm
Description

very well crystallized cluster of light brown, lustrous, translucent, terminated dravite (tl), combined with small muscovite - no matrix

comes with old label reading "prevale, kärnthen"

Mineral Data
What's on the rock

Tourmaline

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

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