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Cordierite & Ilmenite

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SHS774851

Cordierite & Ilmenite

Description Tabs

Description
Locality: 
Betroka District, Anosy, Madagascar
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 7 × 3 cm
Description

Cordierite and ilmenite in quartzite

Mineral Data
What's on the rock

Cordierite

Formula: 
(Mg,Fe)2Al3(AlSi5O18)
Strunz: 
9.CJ.10
Crystal System: 
Orthorhombic
Hardness: 
7.0 - 7.5
Type Locality: 
Großer Arber, Bayerisch Eisenstein, Lower Bavaria, Bavaria, Germany

Ilmenite

Formula: 
Fe2+TiO3
Strunz: 
4.CB.05
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
5.0 - 6.0
Type Locality: 
Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...