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Uvite & Dolomite

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MGR938565

Uvite & Dolomite

Classic Locality

Description Tabs

Description
Locality: 
Brumado, Bahia, Brazil
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 1.9 × 1.6 cm
Description

Incredible uvite specimen from Brazil. This little beauty is super lustrous and has an amazingly satturated colour and is also placed on top of some crystallised dolomite. Great thumbnail specimen!

Mineral Data
What's on the rock

Uvite

Formula: 
Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Group Parent: 
Tourmaline
Crystal System: 
Trigonal
Hardness: 
7.5
Colour: 
Black, greenish-black
Streak: 
Light-brown, light-green, or white

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White