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Svanbergite & Uvite

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SER140468

Svanbergite & Uvite

Description Tabs

Description
Locality: 
Pomba Pit, Serra das Éguas, Brumado, Bahia, Brazil
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5 × 4 cm
Description

Numerous cubic svambergite crystals on magnesite with red uvite

Mineral Data
What's on the rock

Svanbergite

Formula: 
SrAl3(PO4)(SO4)(OH)6
Strunz: 
8.BL.05
Crystal System: 
Trigonal
Hardness: 
5.0
Streak: 
white
Type Locality: 
Hålsjöberg (Horrsjöberg), Torsby, Värmland, Sweden

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