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Svanbergite & Topaz

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BCK1037907

Svanbergite & Topaz

Classic Locality

Description Tabs

Description
Locality: 
Brumado, Bahia, Brazil
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 0.7 × 0.8 cm
Description

You are bidding on a single quartz crystal from Brumado covered on two faces with rich, sharp pseudocubes of svanbergite and colorless prisms of topaz. Ex. Bill Pinch and Donald Cooke collections. Rich! 

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

Topaz

Formula: 
Al2(SiO4)(F,OH)2
Strunz: 
9.AF.35
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
8.0
Streak: 
White

Seller Information

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