К минералам

RRUFF #5339

Arrojadite-(KFe)

Элементы:KNaFeCaAlPOH
Valence:KNaFe^2+CaAlPOH

Химия

IMA chemistry:
(KNa)Fe2+(CaNa2)Fe2+13Al(PO4)11(PO3OH)(OH)2
Valence chemistry:
(KNa)Fe2+(CaNa2)Fe2+13Al(PO4)11(PO3OH)(OH)2

Классификация

Crystal systems:
monoclinic
Space groups:
A2, a, C2, c, B2, b
Structural group:
Arrojadite
IMA status:
Approved, Renamed

Происхождение

Country:
Brazil
Published:
1925
Oldest age Ma:
2046
Paragenetic modes:
Abiotic, Primary, Stage 4b: Highly evolved igneous rocks, PM34 - Complex granite pegmatites

Примечания

Guimarães D (1925) Arrojadita, um novo mineral do grupo da wagnerita. Publicaçao da Inspectoria de Obras Contra as Seccas, Rio de Janeiro 58, 119-122 Redefined and name changed from arrojadite: Chopin C, Oberti R, Camara F (2006) The arrojadite enigma: II. Compositional space, new members, and nomenclature of the group. American Mineralogist 91, 1260-1270