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Topaz With Ilmenorutile

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CLB123108

Topaz With Ilmenorutile

Gem Crystal

Description Tabs

Description
Locality: 
Schneckenstein, Kielberg, Klingenthal, Vogtland, Saxony, Germany
Size Range: 
Cabinet (10-18 cm)
Size: 
12 × 5.5 × 4.5 cm
Largest Crystal: 
0.70cm
Description

More than half a dozen very fine champagne- to cognac-colored transparent topaz crystals up to 0.7 cm
Tiny thin Ilmenorutile crystals in vugs (not pictured). Also very fine quartz crystals.

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

Ilmenorutile

Variety Of: 

Rutile

Formula: 
TiO2
Strunz: 
4.DB.05
Hardness: 
6.0 - 6.5
Formula: 
Fex(Nb,Ta)2x·4Ti1-xO2
Crystal System: 
Tetragonal
Hardness: 
6.0 - 6.5
Colour: 
Black
Type Locality: 
Vein No. 140 (Selyankino village), Buldym Lake, Vishnevye Mts (Vishnyovye; Cherry), Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...

Seller Information

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