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Sobolevite
Type Locality
Alluaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Mineral Data
Na
13
Ca
2
Mn
2
Ti
3
(Si
2
O
7
)
2
(PO
4
)
4
O
3
F
3
Strunz:
9.BE.37
Physical Properties
Hardness:
4.5 - 5.0
