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Jahnsite-(NaMnMg) & Gordonite

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SER727182

Jahnsite-(NaMnMg) & Gordonite

Type Locality

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 × 2.1 × 0.7 cm
Description

a tiny but rich specimen featuring several yellow brown new jahnsite crystals, analysed by Tony Kampf and a cluster of colourless gordonite crystals

Mineral Data
What's on the rock

Jahnsite-(NaMnMg)

Formula: 
{(Na,Ca)}{(Mn2+,Fe3+)}{(Mg,Fe3+)2}{Fe3+2}(PO4)4(OH)2 · 8H2O
Strunz: 
8.DH.15
Crystal System: 
Monoclinic
Type Locality: 
Sapucaia Mine, Sapucaia do Norte, Galiléia, Minas Gerais, Brazil

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
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