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Hibschite With Chromite

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PDM1020311

Hibschite With Chromite

Description Tabs

Description
Locality: 
Buffelsfontein Mine, Brits, Bojanala District, North West Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 2.9 × 1.8 cm
Weight: 
19.00gr
Description

Black microcrystalline chromite with green microcrystals of grossular of the variety hibschite. Typical "Transvaal Jade" or “Bushveld Jade” that is a garnetite and chromitite from the Bushveld Complex, originated by metamorphism of very old Paleoproterozoic rocks (~2000 million years old). Ex. René Virlet specimen.

Obtained in 1962 from Gilbert Gauthier, who carried out a collecting/buying trip in the early 1960’s to Northern Rhodesia (Zambia), Southern Rhodesia (Zimbabwe), South Africa and South West Africa (Namibia).

Combine specimens to reduce shipping costs!.

 

Further info in:

J. J. Frankel (1959). Uvarovite garnet and South African jade (hydrogrossular) from the Bushveld Complex, Transvaal. American Mineralogist 44, 5-6; 565–591.

Mineral Data
What's on the rock

Hibschite

Variety Of: 

Grossular

Formula: 
Ca3Al2(SiO4)3
Strunz: 
9.AD.25
Hardness: 
6.5 - 7.0
Formula: 
Ca3Al2(SiO4)3-x(OH)4x
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5
Streak: 
White
Type Locality: 
Mariánská Skála (Mariánská hora; Marienberg), Ústí nad Labem (Aussig), Ústí Region, Bohemia (Böhmen; Boehmen), Czech Republic

Chromite

Formula: 
Fe2+Cr3+2O4
Strunz: 
4.BB.05
Hardness: 
5.5
Colour: 
Black
Streak: 
Brown
Type Locality: 
Bastide de la Carrade, Gassin, Var, Provence-Alpes-Côte d'Azur, France...

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