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Greifensteinite Eosphorite & Gormanite-Souzalite Series

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PAV950716

Greifensteinite Eosphorite & Gormanite-Souzalite Series

Classic Locality

Description Tabs

Description
Locality: 
Gentil Claim, Mendes Pimentel, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 2 × 2 cm
Description

Absolutely fantastic sample!

Several isolated and spheroidal aggregates of greifensteinite, together with eosphorite, on a spray of bluish green gormanite-souzalite crystals.

Amazing sample!

Acquired: 
Boxed with Label
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

Eosphorite

Formula: 
(Mn2+,Fe2+)Al(PO4)(OH)2·H2O
Strunz: 
8.DD.20
Crystal System: 
Orthorhombic
Hardness: 
5.0
Streak: 
White
Type Locality: 
Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA

Gormanite-Souzalite Series

Formula: 
(Fe2+,Mg)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O to (Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O
Crystal System: 
Triclinic