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Cryolite & Weloganite

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CFL760268

Cryolite & Weloganite

Fluorescent

Description Tabs

Description
Locality: 
Francon Quarry, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4 × 2.5 cm
Description

Nice specimen of cryolite crystals, up to 1 cm in size, associated with small weloganite crystals on matrix.   Ex-Michel Brunet specimen (label).  Collected in 1981.

Mineral Data
What's on the rock

Cryolite

Formula: 
Na3[AlF6]
Strunz: 
3.CB.15
Crystal System: 
Monoclinic
Hardness: 
2.5
Streak: 
White
Type Locality: 
Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Fjord, Sermersooq, Greenland

Weloganite

Formula: 
Na2Sr3Zr(CO3)6·3H2O
Strunz: 
5.CC.05
Hardness: 
3.5
Streak: 
white
Type Locality: 
Francon quarry, Montréal, Québec, Canada

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