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Topaz

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CR200906

Topaz

Classic Locality

Description Tabs

Description
Locality: 
Adun-Cholon Range, Nerchinsk, Chitinskaya Oblast, Zabaykalsky Krai, Russian Federation
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.1 × 2 cm
Description

This is a very old, pale blue and translucent to gemmy and well terminated topaz crystal from Sibiria.

Ex Rijksmuseum Stockholm - acquired before 1900 !

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