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Dawsonite & Weloganite

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SYM156463

Dawsonite & Weloganite

Rare Mineral

Description Tabs

Description
Locality: 
Francon Quarry, Québec, Canada
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.8 × 3 × 3.7 cm
Description

Many sharp clear stubby crystals of dawsonite with yellowish to white weloganite crystals and quartz.

Mineral Data
What's on the rock

Dawsonite

Formula: 
NaAlCO3(OH)2
Strunz: 
5.BB.10
Crystal System: 
Orthorhombic
Hardness: 
3.0
Streak: 
White
Type Locality: 
McGill University campus, Montréal, Québec, Canada

Weloganite

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