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Smoky Quartz Fluorite Stilbite & Adularia

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WND853765

Smoky Quartz Fluorite Stilbite & Adularia

Ex Christof Foltin Collection
Classic Locality

Description Tabs

Description
Locality: 
Schijenstock, Rien Valley, Reuss Valley, Uri, Switzerland
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
12.3 × 7.7 × 5.7 cm
Description

This is a superfine alpine combination piece of excellent defined and germmy Smoky Quartz, white, bow tie-shaped Stilbite, sharp white Adularia and pale rose, indistinct Fluorite. You see the superb multifaced termination of the perfect major crystal. This fine specimen was purchased in 1964 from Strahler v. Gnos-Puhr from Amsteg, Switzerland for 8,00 Swiss Francs. The specimen´s history is exactly reported on the enclosed original file card.

Mineral Data
What's on the rock

Smoky Quartz

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
SiO2
Hardness: 
0.0

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

Stilbite

Synonym Of: 

Stilbite-Ca

Formula: 
NaCa4[Al9Si27O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0

Stilbite-Na

Formula: 
(Na,Ca,K)6-7[Al8Si28O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0
Hardness: 
3.5 - 4
Colour: 
White
Streak: 
White

Adularia

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Monoclinic
Hardness: 
6 Ortho - clase
Wendel Minerals

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