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Jahnsite-(CaFeMg) & Barbosalite

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SER703177

Jahnsite-(CaFeMg) & Barbosalite

Description Tabs

Description
Locality: 
Sapucaia Mine, Sapucaia do Norte, Galiléia, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 1.8 × 1.1 cm
Description

in a vug there are several brown lustrous jahnsite crystals with black barbosalite

Mineral Data
What's on the rock

Jahnsite-(CaFeMg)

Formula: 
CaFe2+Mg2Fe3+2(PO4)4(OH)2·8H2O
Hardness: 
0.0
Type Locality: 
Tom's quarry (Tom's Phosphate quarry; Clutterbuck Bros; PM 315; Sobey; BHP; ML 4993), Kapunda, North Mt Lofty Ranges, Mt Lofty Ranges, South Australia, Australia...

Barbosalite

Formula: 
Fe2+Fe3+2(PO4)2(OH)2
Strunz: 
8.BB.40
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0
Type Locality: 
Sapucaia Mine (Proberil mine), Sapucaia do Norte, Galiléia, Doce valley, Minas Gerais, Brazil