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Høgtuvaite

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JYJ626535

Høgtuvaite

Description Tabs

Description
Locality: 
Bordvedåga, Høgtuva, Rana, Nordland, Norway
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 1.3 cm
Description

A rich sample hosting the rare black Be mineral høgtuvaite in crystals. 
Rich specimen, Type locality!

References: 

Grauch et al. (1994): Høgtuvaite, a new beryllian member of the aenigmatite group fom Norway, with x-ray data on aenigmatite. Canadian Mineralogist. 32: 439-448; Schilling, J., Bingen, B., Skår, O., Wenzel, T., Markl, G. (2015): Formation and evolution of the Høgtuva beryllium deposit, Norway. Contributions to Mineralogy and Petrology 170, 30. (21 pp.)

Mineral Data
What's on the rock

Høgtuvaite

Formula: 
(Ca,Na)2(Fe2+,Fe3+,Ti)6[O2|Be(Si,Al)5O18]
Strunz: 
9.DH.40
Crystal System: 
Triclinic
Hardness: 
5.5
Colour: 
Black
Type Locality: 
Høgtuva Beryllium deposit, Rana, Nordland, Norway