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Topaz Fluorite Schorl

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MGR719759

Topaz Fluorite Schorl

Description Tabs

Description
Locality: 
Dassu, Gilgit-Baltistan, Pakistan
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.8 × 3.5 × 4.5 cm
Description

A wonderful sample of Pegmatite mineralization: it features a wonderful combination of Feldspat, Fluorite, Schorl and Topaz. The topaz crystal shows very good clarity, cognac like colour, sharp termination and lustrous faces (33 mm across). Those Shorl crystals are sharp, endpointed and very glossy. The Fluorite is light green, it shows modifications on all corners (kub-octahedral), the faces are lustrous, too (20 mm on edges). The sample is very three-dimenstional and asthetic - even better in person, 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

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Crystal System: 
Isometric
Hardness: 
4.0
Streak: 
White
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Schorl

Formula: 
Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.0
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