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Thomsenolite
Type Locality
Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Fjord, Sermersooq, Greenland
Mineral Data
NaCa[AlF
6
] · H
2
O
Dimorph Of:
Pachnolite
Strunz:
3/C.02-20
Physical Properties
Colour:
Colourless, white, pale
Crystal System:
Monoclinic
Streak:
White
Hardness:
2
Tenacity:
Brittle
