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Dawsonite & Dolomite

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ZLT110004

Dawsonite & Dolomite

Description Tabs

Description
Locality: 
Siele Mine, Piancastagnaio, Siena Province, Tuscany, Italy
Size Range: 
Thumbnail (1-3cm)
Size: 
0.9 × 2.1 × 2 cm
Description

Fibrous crystals of dawsonite with dolomite.

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

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

Seller Information

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