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Tienshanite

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SKY822171

Tienshanite

Rare Mineral

Description Tabs

Description
Locality: 
Dara-i-Pioz Glacier, Tien Shan Mountains, Region of Republican Subordination, Tajikistan
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.2 × 1 cm
Description

Outstanding colorful specimen of the extremely rare green mineral tienshanite from the type and only known locality worldwide in Tien Shan mountains., associated to nice purple fluorite with a good contrast with the matrix.

Very nice under the microscope !

Ex Vandenbroucke Museum collection specimen, from Waregem, Belgium.

Mineral Data
What's on the rock

Tienshanite

Formula: 
KNa3Na6Ca2Ba6Mn6(Ti4+,Nb)6B12Si36O114(O,OH,F)11
Strunz: 
9.CL.05
Hardness: 
6.0 - 6.5
Type Locality: 
Darai-Pioz Glacier (Dara-i-Pioz; Dara-Pioz), Alai Range (Alayskiy), Tien Shan Mtn, Region of Republican Subordination, Tajikistan

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