К минералам

RRUFF #940

Arrojadite-(KNa)

Элементы:KNaCaFeAlPOH
Valence:KNaCaFe^2+AlPOH

Химия

IMA chemistry:
KNa3(CaNa2)Fe2+13Al(PO4)11(PO3OH)(OH)2
Valence chemistry:
KNa3(CaNa2)Fe2+13Al(PO4)11(PO3OH)(OH)2

Классификация

Crystal systems:
monoclinic
Space groups:
A2, a, Cc
Structural group:
Arrojadite
IMA status:
Approved

Происхождение

Country:
Canada
Published:
2005
Oldest age Ma:
215
Paragenetic modes:
Abiotic, Primary, Stage 4b: Highly evolved igneous rocks, PM34 - Complex granite pegmatites

Примечания

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