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Johnsomervilleite & Whitmoreite

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SER537468

Johnsomervilleite & Whitmoreite

Rare Mineral

Description Tabs

Description
Locality: 
Sapucaia Mine, Sapucaia do Norte, Galiléia, Minas Gerais, Brazil
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.5 × 1.5 cm
Description

Black massive johnsomervilleite (photo 2) with several tiny, yellow tufts of whitmoreite and minor saleeite; self collected on 2012

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

Whitmoreite

Formula: 
Fe2+Fe3+2(PO4)2(OH)2·4H2O
Strunz: 
8.DC.15
Hardness: 
3.0
Type Locality: 
Palermo No. 1 Mine (Palermo No. 1 pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USA
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