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Yofortierite & Zakharovite

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SYM854311

Yofortierite & Zakharovite

Rare Mineral

Description Tabs

Description
Locality: 
Demix-Varennes Quarry, Varennes & St-Amable, Montérégie, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1 × 1.3 cm
Description

Brown sprays of yofortierite with yellow/orange hexagonal crystals of zakharovite on matrix. 

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

Zakharovite

Formula: 
Na4Mn5Si10O24(OH)6·6H2O
Strunz: 
9.EE.65
Crystal System: 
Trigonal
Hardness: 
2.0
Colour: 
Yellow
Type Locality: 
Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...