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Yofortierite

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CFL638049

Yofortierite

Type Locality

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11.3 × 11 × 6 cm
Weight: 
850.00gr
Description

Numerous sprays of purple acicular yofortierite crystals from the type locality.  Associated with translucent analcime crystals.  Specimen collected at the Demix Quarry  by P. Albert and given to Ecole Polytechnique (Montreal University) in sept. 1970 (label).  There are only 8 reported localities worldwide for this species.  According to Gilles Haineault, this is an excellent specimen for the species.

Mineral Data
What's on the rock

Yofortierite

Formula: 
Mn5Si8O20(OH)2·8-9H2O
Strunz: 
9.EE.20
Hardness: 
0.0
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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