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Yofortierite

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CFL928688

Yofortierite

Type Locality

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.5 × 3.5 cm
Description

Type locality specimen of fibrous yofortierite crystals and possibly type locality niobokupletskite, associated with kentbrooksite.  Collected from the Yofortierite pegmatite (1967 or 1969).  Ex-Ecole Polytechnique (University of Montreal) specimen.

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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