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Fluoro-richterite

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SYM831892

Fluoro-richterite

Rare Mineral

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.3 × 1 cm
Description

Rare fluoro-richterite needles with gemmy diamond shaped fluorapophyllite crystals from MSH. 

Mineral Data
What's on the rock

Fluoro-richterite

Formula: 
{Na}{CaNa}{Mg5}(Si8O22)(F,OH)2
Strunz: 
9.DE.20
Crystal System: 
Monoclinic
Hardness: 
5.0 - 6.0
Streak: 
white
Type Locality: 
Pit No. 97 (N97 Mine), Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...