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Magnetite

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QRI856431

Magnetite

Former collection Kasper (CH)

Description Tabs

Description
Locality: 
Val Rischuna, Valser, Surselva Region, Grisons, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 2 × 1.4 cm
Largest Crystal: 
0.30cm
Weight: 
18.00gr
Description

The (meta)serpentinite from the area host relatively sizeable octahedral magnetite which crop out of the matrix. The specimen is exactly that, featuring a few pitch black octahedrons with very good lustre. 

Quite representative from the area and paragenesis. Specimens like these are very scarse outside of old collections.

It comes from the former collection Kasper (CH), assembled in the 60s.

Mineral Data
What's on the rock

Magnetite

Formula: 
Fe2+Fe3+2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.5
Streak: 
Black

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