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Faheyite

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BCK576348

Faheyite

Rare Mineral

Description Tabs

Description
Locality: 
Roosevelt Group, Custer, Custer County, South Dakota, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.3 × 1.1 cm
Description

You are bidding on a small with a vug containing a white spray of extremely rare faheyite on phosphosiderite. This sample was collected by Steve and Janet Cares in 1976. Verified material and very hard to find. 

Mineral Data
What's on the rock

Faheyite

Formula: 
(Mn,Mg,Na)Be2Fe2(PO4)4·6H2O
Strunz: 
8.CA.15
Crystal System: 
Hexagonal
Hardness: 
3.0 - 0.0
Streak: 
White
Type Locality: 
Sapucaia Mine (Proberil mine), Sapucaia do Norte, Galiléia, Doce valley, Minas Gerais, Brazil

Seller Information

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