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Segelerite

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Segelerite

Description Tabs

Description
Locality: 
Tip Top Mine, Fourmile, Custer County, South Dakota, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 2.8 × 2.4 cm
Description

Prismatic colourless segelerite on matrix from the Tip Top mine, South Dakota, USA. Associated minerals are montgomeryite. 

 

Mineral Data
What's on the rock

Segelerite

Formula: 
Ca2 Mg2 Fe3+2(PO4)4(OH)2·8H2O
Strunz: 
8.DH.20
Hardness: 
4.0
Streak: 
White
Type Locality: 
Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA