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Keldyshite
Type Locality
Alluaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Mineral Data
(Na,H)
2
ZrSi
2
O
7
Strunz:
9.BC.10
Physical Properties
Colour:
White
Hardness:
3.5 - 4.5
Tenacity:
very brittle
