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Gordonite Strengite & Jahnsite-(MnMnMg)

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SER943143

Gordonite Strengite & Jahnsite-(MnMnMg)

Description Tabs

Description
Locality: 
Sapucaia Mine, Sapucaia do Norte, Galiléia, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.9 × 0.9 cm
Description

little but rich specimen featuring a vug filled with white balls of meurigite-K hosting light yellow, lustrous gordonite crystals and a pink strengite ball; in another vug, yellow crystals of jahnsite-(MnMnMg) with orange balls of cacoxenite ; self collected on 2014

Mineral Data
What's on the rock

Gordonite

Formula: 
MgAl2(PO4)2(OH)2·8H2O
Strunz: 
8.DC.30
Hardness: 
3.5
Streak: 
White
Type Locality: 
Clay Canyon, Fairfield, Oquirrh Mts, Utah Co., Utah, USA

Strengite

Formula: 
FePO4·2H2O
Strunz: 
8.CD.10
Hardness: 
3.5 - 4.0
Streak: 
white
Type Locality: 
Eleonore Mine, Rodheim-Bieber, Wetzlar, Hesse, Germany

Jahnsite-(MnMnMg)

Formula: 
Mn2+Mn2+Mg2Fe3+2(PO4)4(OH)2 · 8H2O
Crystal System: 
Monoclinic
Type Locality: 
Sapucaia do Norte, Galiléia, Minas Gerais, Brazil