Alluaudite

Химия

IMA chemistry:: ☐NaMnFe3+2(PO4)3
Valence chemistry:: ☐NaMn2+Fe3+2(PO4)3

Классификация

Crystal systems:: monoclinic
Space groups:: C2, c
Structural group:: Alluaudite
IMA status:: Approved, Redefined

Происхождение

Country:: France
Published:: 1848
Oldest age Ma:: 2772
Paragenetic modes:: Abiotic, Primary, Secondary, Stage 4a: Earth's earliest continental crust, PM21 - Chemical precipitation, PM31 - Contact metamorphism, Stage 4b: Highly evolved igneous rocks, PM34 - Complex granite pegmatites

Примечания

Damour A A (1848) Sur un nouveau phosphate de fer, de manganèse et de soude, l'alluaudite, trouvé dans le département de la Haute-Vienne, Annales des Mines 13, 341-350 Redefined: Moore P B, Ito J (1979) Alluaudites, wyllieites, arrojadites: crystal chemistry and nomenclature. Mineralogical Magazine 43, 227-235 Chemical formula changed from (Na,Ca)(Mn,Mg,Fe2+)(Fe3+,Mn2+)2(PO4)3: Hatert F (2019) A new nomenclature scheme for the alluaudite supergroup. European Journal of Mineralogy 31, 807-822