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Atencioite Childrenite & Hydroxylherderite

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SER211562

Atencioite Childrenite & Hydroxylherderite

Rare mineral

Description Tabs

Description
Locality: 
Poço d'Antas Claim, Piauí Valley, Itinga, Minas Gerais, Brazil
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.4 × 4.1 × 3.1 cm
Description

A large specimen featuring tabular, green atencioite crystals on albite with brown elongated childrenite and yellow prismatic hydroxylherderite; bought this year directly from the mine owner in Araçuaì

Mineral Data
What's on the rock

Atencioite

Formula: 
Ca2Fe2+3Mg2Be4(PO4)6(OH)4·6H2O
Strunz: 
8.DA.10
Hardness: 
0.0
Type Locality: 
Linópolis, Divino das Laranjeiras, Doce valley, Minas Gerais, Brazil

Childrenite

Formula: 
(Fe2+,Mn2+)Al(PO4)(OH)2·H2O
Strunz: 
8.DD.20
Hardness: 
5.0
Streak: 
White
Type Locality: 
Tavistock District, Devon, England, UK

Hydroxylherderite

Formula: 
CaBe(PO4)(OH,F)
Strunz: 
8.BA.10
Crystal System: 
Monoclinic
Hardness: 
5.0 - 5.5
Streak: 
white