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Greifensteinite

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BCK545587

Greifensteinite

Rare Mineral

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Description
Locality: 
Estes Quarry, Baldwin, Cumberland County, Maine, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.9 × 1.9 cm
Description

You are bidding on a small sample with a nice vug of greifensteinite crystals in siderite. Verified sample from the late Gene Bearss collection. 

Mineral Data
What's on the rock

Greifensteinite

Formula: 
Ca2Fe2+5Be4(PO4)6(OH)4·6H2O
Strunz: 
8.DA.10
Hardness: 
0.0
Type Locality: 
Greifenstein Rocks, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany

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