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Fluoro-richterite

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PDM589970

Fluoro-richterite

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Description
Locality: 
Wilberforce, Haliburton County, Ontario, Canada
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 2.7 × 0.9 cm
Description

A floater, doubly-terminated dark green to brown crystal of fluoro-richterite with good lustre and free of damage.

Acquired in 1988, it is an Ex. Jozef Cosemans specimen, who was the Chief Metallurgist at the Zinc smelter of Vieille-Montagne in Balen (Belgium).

 

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...

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