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Grumantite
Type Locality
Severnyi quarry, Alluaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Mineral Data
Na(HSi
2
O
5
)·H
2
O
Strunz:
9.EH.10
Physical Properties
Colour:
white
Streak:
white
Hardness:
4.0 - 5.0
