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Gwindel Titanite & Ilmenite

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MGR657400

Gwindel Titanite & Ilmenite

Description Tabs

Description
Locality: 
Oberaar Glacier, Oberaar Lake, Grimsel area, Hasli Valley, Bern, Switzerland
Class: 
Single Crystal
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.7 × 4.5 × 1.9 cm
Description

A sharp terminated lustrous water clear rock crystal gwindel from this more uncommon locality. The most uncommon indicator is the combination with titanite and ilmenite. It is well developed to the right hand side, left hand side was contacted. 

Mineral Data
What's on the rock

Gwindel

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Hardness: 
0.0

Titanite

Formula: 
CaTi(SiO4)O
Strunz: 
9.AG.15
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Titanite occurrence, Hauzenberg, 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...