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Correianevesite Hureaulite & Rockbridgeite

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SER870988

Correianevesite Hureaulite & Rockbridgeite

Type Locality

Description Tabs

Description
Locality: 
Cigana (Jocão), Galiléia, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
11.6 × 7.5 × 3.5 cm
Description

a cabinet size specimen featuring a large vug filled with pink hureaulite crystals hosting several brown correianevesite crystals;  the other part of the matrix is covered by hundreds black lustrous clusters of rockbridgeite that covers also the back of the specimen; a truly outstandig specimen

Mineral Data
What's on the rock

Correianevesite

Formula: 
Fe2+Mn2+2(PO4)2·3H2O
Hardness: 
3.5 - 0.0
Streak: 
White
Type Locality: 
Jocão pegmatite (Cigana claim), Conselheiro Pena, 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

Rockbridgeite

Formula: 
Fe2+Fe3+4(PO4)3(OH)5
Strunz: 
8.BC.10
Crystal System: 
Orthorhombic
Hardness: 
3.5 - 4.5
Type Locality: 
Midvale Mine, South Mountain, Midvale, Rockbridge Co., Virginia, USA