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Topaz & Bixbyite

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MGR750680

Topaz & Bixbyite

Floater

Description Tabs

Description
Locality: 
Thomas Range, Juab County, Utah, United States of America
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 1 × 0.9 cm
Description

Both minerals - topaz and also bixbyite is well known for the locality. But a combination of both is uncommon. The topaz is developed as floater and on one side you can see several sharp terminated, lustrous cubic bixbyite crystals. No significant damages to report.

Mineral Data
What's on the rock

Topaz

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

Bixbyite

Formula: 
Mn3+2O3
Strunz: 
4.CB.10
Hardness: 
6.0 - 6.5
Colour: 
Black
Streak: 
Black
Type Locality: 
Maynard's claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA...