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Griphite

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SKY981658

Griphite

Type Locality

Description Tabs

Description
Locality: 
Everly Mine, Harney City, Pennington County, South Dakota, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.2 × 1.2 cm
Description

Brown crystal aggregates of the rare phosphate mineral griphite from the type locality in South Dakota.

Ex Vandenbroucke Museum collection from Waregem, Belgium.

Mineral Data
What's on the rock

Griphite

Formula: 
Na4Li2Ca6(Mn2+,Fe2+,Mg)19Al8(PO4)24(F,OH)8
Strunz: 
8.BF.15
Crystal System: 
Isometric
Hardness: 
5.5
Type Locality: 
Everly Mine (Riverton lode), Harney City, Pennington Co., South Dakota, USA

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