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Ferro-edenite

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SKY771058

Ferro-edenite

Rare Mineral

Description Tabs

Description
Locality: 
Kotaki River, Itoigawa City, Niigata, Honshu Island, Japan
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.1 × 0.8 cm
Description

Dark green crystals of the rare mineral ferroedenite associated to almandine and biotite.

Mineral Data
What's on the rock

Ferro-edenite

Formula: 
{Na}{Ca2}{Fe2+5}(AlSi7O22)(OH)2
Strunz: 
9.DE.15
Hardness: 
5.0 - 6.0
Streak: 
white
Type Locality: 
Baie-des-Moutons syenitic complex, La Tabatière, Gros-Mécatina, Le Golfe-du-Saint-Laurent RCM, Côte-Nord, Québec, Canada

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