Atencioite Locality: Linópolis, Divino das Laranjeiras , Doce valley, Minas Gerais , Southeast Region, Brazil ( Locality at mindat.org ) A nice specimen of brown Atencioite. Field of view 7 mm. Specimen and photo Leon Hupperichs. — Photo: Leon Hupperichs · CC BY-SA 3.0
Atencioite
A calcium-iron-beryllium phosphate from Minas Gerais, Brazil, named for University of São Paulo mineralogist Daniel Atencio.
Intro adapted from Wikipedia (CC BY-SA).
Atencioite is an IMA-recognized mineral species in the phosphate class, with the chemical formula Ca₂Fe²⁺₃Mg₂Be₄(PO₄)₆(OH)₄·6H₂O.
It crystallizes in the triclinic crystal system (space group P-1). It is a member of the Roscherite structural group.
IMA symbol Aco, IMA status: approved, named in 2004.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data and a Wikipedia introduction — a full written entry hasn’t been published yet.
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