Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:TURKESTANITE
Formula:Th(Ca,Na)2(K1-x[]x)Si8O20 · nH2O
Crystal System:Quadratic (Tetragonal)
Strunz Nr:8/E.10-40
Group:Iraquite Group
References:ZVMO 126/6 (1997), 45; AM 83 (1998), 1348; MR 2 (2000), 204
Type Locality:Djelisu massif, Osh region, Kyrgyzstan (Kirghizia) and Dara-i-Pioz (Darai-Piyoz) massif, Garmskiy region, Tien Shan, Tajikistan
Comments:[] = vacancy

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