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Magnetite & Rutile

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JNM685747

Magnetite & Rutile

Description Tabs

Description
Locality: 
Vordere Chollergrabe, Lärchultini, Goms, Valais, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 3.5 × 2 cm
Description

Complex rutile twin of 5 mm height and a magnetite octahedron of 4 mm edge length on mica coated gneiss matrix. Both crystals show bright metallic luster and are free of significant damage.

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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

Rutile

Formula: 
TiO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal - Ditetragonal Dipyramidal
Hardness: 
6.0 - 6.5
Type Locality: 
Rutile locality, Horcajuelo de la Sierra, Madrid, Spain
Video

Magnetite & Rutile

JN Minerals

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