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Tourmaline & Feldspar Group

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MGR853593

Tourmaline & Feldspar Group

Description Tabs

Description
Locality: 
Bjønndalen Quarry, Nittedal, Viken, Norway
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.9 × 1.7 cm
Description

Strange and interresting combination from this rare location. The schörl tourmaline looks almost like a botryoidal crystalized spere. It is sitting on a matrix of feldspat. This specimen was found in 1999.

Mineral Data
What's on the rock

Tourmaline

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