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Umbite
Type Locality
Vuonnemiok River Valley, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Mineral Data
K
2
(Zr,Ti)Si
3
O
9
·H
2
O
Strunz:
9.DG.25
Physical Properties
Crystal System:
Orthorhombic
Hardness:
4.5
