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Barbosalite & Hureaulite

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SER581492

Barbosalite & Hureaulite

Description Tabs

Description
Locality: 
Serra Branca Pegmatite, Pedra Lavrada, Borborema Province, Paraiba, Brazil
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 2 × 1.5 cm
Description

Hundreds tiny, black, lustrous, also twinned barbosalite crystals on pink hureaulite; self collected on 2015

Mineral Data
What's on the rock

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

Hureaulite

Formula: 
(Mn,Fe)5(PO4)2(HPO4)2·4H2O
Strunz: 
8.CB.10
Hardness: 
5.0
Type Locality: 
Les Hureaux, Saint-Sylvestre, Haute-Vienne, Limousin, France