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Turkestanite & Steacyite

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HEF802195

Turkestanite & Steacyite

Fluorescent

Description Tabs

Description
Locality: 
Murunskii Massif, Aldan Shield, Sakha Republic, Russian Federation
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.8 × 4.2 × 3.5 cm
Description

Yellow green fluorescent turkestanite / staecyite on matrix with charoite and aegirine

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

Steacyite

Formula: 
(◻,K)(Na,Ca)2(Th,U)[Si8O20]
Strunz: 
9.CH.10
Hardness: 
5.0
Type Locality: 
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

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