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Ankangite

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Ankangite

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Description
Locality: 
Tomás Gonzaga, Curvelo, Minas Gerais, Brazil
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1 × 1 cm
Description

Dark green to black acicular crystals of ankangite, a rare barium-titanium-chromium-oxide, inside a 2 cm large quartz crystal.
Ex Jaroslav Hyrsl specimen.

Mineral Data
What's on the rock

Ankangite

Variety Of: 

Mannardite

Formula: 
Ba(Ti4+6V3+2)O16
Strunz: 
4.DK.05b
Hardness: 
7.0
Formula: 
Ba(Ti,V3+,Cr)8O16
Crystal System: 
Tetragonal
Hardness: 
0.0
Type Locality: 
Shiti Mine, Hanbin District, Ankang Prefecture, Shaanxi Province, China
Cartils Minerals

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