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Dravite

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PDM1038433

Dravite

Description Tabs

Description
Locality: 
Bjordam Quarry, Bjordam, Bamble, Vestfold og Telemark, Norway
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.3 × 6.3 × 5.5 cm
Largest Crystal: 
1.30cm
Weight: 
219.00gr
Description

Black euhedral crystals of dravite in a matrix of white quartz and oligoclase feldspar with zones of orange sunstone, and minor green aventurine.

Ex Jan Sibtsen stock.

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Dravite

Formula: 
Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Crystal System: 
Trigonal
Hardness: 
7.0
Type Locality: 
Dobrova, Dravograd (Unterdrauburg), Slovenia

Seller Information

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