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Carletonite

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TPX643737

Carletonite

Type Locality

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.7 × 1.2 cm
Weight: 
5.00gr
Description

Spectacular  group of royal blue carletonite crystals, carletonite only occurs at Mont Saint-Hilaire in Québec, Canada. It forms exclusively in marble xenoliths. Excellent specimens were found intermittently between 1983 and 1987. This species is almost always found as layered crystalline masses embedded in marble rarely opening into cavities. 

Mineral Data
What's on the rock

Carletonite

Formula: 
KNa4Ca4Si8O18(CO3)4(OH,F)·H2O
Strunz: 
9.EB.20
Crystal System: 
Tetragonal
Hardness: 
4.0 - 4.5
Streak: 
White
Type Locality: 
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

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