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Wolfeite & Graftonite

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SHS134605

Wolfeite & Graftonite

Description Tabs

Description
Locality: 
Bull Moose Mine, Custer, Custer County, South Dakota, United States of America
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 1.6 × 1.6 cm
Description

Wolfeite with graftonite, triphylite and sarcopside

Mineral Data
What's on the rock

Wolfeite

Formula: 
(Fe2+,Mn2+)2(PO4)(OH)
Strunz: 
8.BB.15
Hardness: 
4.5 - 5.0
Type Locality: 
Palermo No. 1 Mine (Palermo No. 1 pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USA

Graftonite

Formula: 
(Fe2+,Mn2+,Ca)3(PO4)2
Strunz: 
8.AB.20
Hardness: 
5.0
Type Locality: 
Melvin Mountain, Grafton, Grafton Co., New Hampshire, USA