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Sérandite

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CFL1037492

Sérandite

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 3.5 × 2 cm
Description

Very nice specimen of small translucent to gemmy serandite crystals overgrown onto larger serandite crystals, associated with translucent to gemmy leifite, and manganoneptunite.  Collected in 1988.

Mineral Data
What's on the rock

Sérandite

Formula: 
Na(Mn2+,Ca)2(HSi3O9)
Strunz: 
9.DG.05
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Rouma Island (Roume Island; Roma Island; Ruma Island), Los Archipelago (Los Islands), Guinea

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