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Thomsenolite

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CR202892

Thomsenolite

Type Locality

Description Tabs

Description
Locality: 
Ivittuut, Arsuk Fjord, Sermersooq, Greenland
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4.5 × 4 cm
Description

Sharp thomsenolite crystals in several vugs all around this very rich specimen.

Beautiful old time specimen from Dr. Hartmann collection.

Mineral Data
What's on the rock

Thomsenolite

Formula: 
NaCa[AlF6]·H2O
Strunz: 
3.CB.40
Hardness: 
2.0
Streak: 
White
Type Locality: 
Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Fjord, Sermersooq, Greenland