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Proshchenkoite-(Y)
Type Locality
Tommotskii Massif, Tommot river, Selennyakh range, Cherskii range system, Polar Yakutia, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia
Mineral Data
Ca(Y,REE,Ca,Na,Mn)
15
Fe
2+
(P,Si)Si
6
B
3
O
34
F
14
Strunz:
9.AJ.35
Physical Properties
Hardness:
5.5 - 0.0
Tenacity:
brittle
Synonyms
Synonyms:
Proshchenkoite-Y, Proshchenkoite Y and Proshchenkoite - Y
