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Turkestanite

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CHP929232

Turkestanite

Classic Locality

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Description
Locality: 
Água de Pau Volcano, São Miguel Island, Azores District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 2.4 × 2.1 cm
Description

specimen with a beautiful groip of colourless prismtic crystals of the rare turkestanite on matrix.

c. 4824

Mineral Data
What's on the rock

Turkestanite

Formula: 
(K,◻)(Ca,Na)2(Th,U)[Si8O20
Strunz: 
9.CH.10
Crystal System: 
Tetragonal
Hardness: 
5.5 - 6.0
Type Locality: 
Darai-Pioz Glacier (Dara-i-Pioz; Dara-Pioz), Alai Range (Alayskiy), Tien Shan Mtn, Region of Republican Subordination, Tajikistan

Seller Information

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