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Tourmaline

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CAM220013

Tourmaline

Ex University of Amsterdam
With Antique Label

Description Tabs

Description
Locality: 
Jerisjokk, Storuman, Västerbotten County, Sweden
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 4.5 × 2.2 cm
Largest Crystal: 
1.20cm
Description

Black tourmaline crystals and fragments associated with some muscovite on pegmatite matrix.
A rare and old locality piece.
Collected by Dutch geologist Cornelis Jacobus Mulder in 1949-1950. Ex Geological Institute of the University of Amsterdam, Netherlands.

Mineral Data
What's on the rock

Tourmaline

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

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