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Johnsomervilleite

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FRE524308

Johnsomervilleite

Rare Mineral

Description Tabs

Description
Locality: 
Piona Peninsula, Colico, Lecco Province, Lombardy, Italy
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2 × 3 × 2.5 cm
Description

Very representative specimen of the unusual phosphate johnsomervilleite consisting in a brown crystalline mass of about 1x1x0.5 cm with "apatite" and muscovite embedded in the pegmatitic matrix. From a single finding of March 2014. Probed.

Mineral Data
What's on the rock

Johnsomervilleite

Formula: 
Na10Ca6Mg18Fe25(PO4)36
Strunz: 
8.AC.50
Hardness: 
4.5
Type Locality: 
Loch Quoich, North West Highlands (Inverness-shire), Scotland, UK

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