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Topaz With Crandallite & Ilmenorutile

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Watches:
CLB86079

Topaz With Crandallite & Ilmenorutile

Classic Locality

Description Tabs

Description
Locality: 
Schneckenstein, Kielberg, Klingenthal, Vogtland, Saxony, Germany
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.6 × 5 × 3 cm
Largest Crystal: 
0.80cm
Description

Fantastic specimen with more than 15 (!) gemmy champagne- to cognac-colored topaz crystals up to 0.8 cm. The brown and dark veins on the backside contain micro black ilmenorutile crystals and orange-brown crandallite.

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

Crandallite

Formula: 
CaAl3(PO4)2(OH)5·H2O
Strunz: 
8.BL.10
Crystal System: 
Trigonal
Hardness: 
5.0
Streak: 
White
Type Locality: 
Brooklyn Mine, Silver City, Tintic District, East Tintic Mts, Juab Co., Utah, USA

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...

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