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Svanbergite & Uvite

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BCK208114

Svanbergite & Uvite

Description Tabs

Description
Locality: 
Serra das Éguas, Brumado, Bahia, Brazil
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.4 × 1.1 cm
Description

You are bidding on a small specimen with a very sharp and large svanbergite crystal on a nice group of green uvite crystals.

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

Seller Information

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