К минералам

RRUFF #832

Allanite-(Ce)

Элементы:CaCeAlFeSiOH
Valence:CaCe^3+AlFe^2+SiOH

Химия

IMA chemistry:
CaCe(Al2Fe2+)[Si2O7][SiO4]O(OH)
Valence chemistry:
CaCe3+Al2Fe2+(Si2O7)(SiO4)O(OH)

Классификация

Crystal systems:
monoclinic
Space groups:
P21, m
Structural group:
Allanite, Epidote
IMA status:
Approved, Renamed

Происхождение

Country:
Denmark (Greenland)
Published:
1812
Oldest age Ma:
3366
Paragenetic modes:
Abiotic, Primary, Secondary, Stage 3a: Earth's earliest Hadean crust, PM8 - Mafic igneous rocks, Stage 4a: Earth's earliest continental crust, PM19 - Granitic intrusive rocks, PM26 - Hadean detrital minerals, PM31 - Contact metamorphism, Stage 4b: Highly evolved igneous rocks, PM34 - Complex granite pegmatites, PM35 - Ultra-alkali and agpaitic igneous rocks, PM36 - Carbonatites & kimberlites, Stage 5: Initiation of plate tectonics, PM40 - Regional metamorphism

Примечания

Thomson T (1812) Experiments on allanite, a new mineral from Greenland. Transactions of the Royal Society of Edinburgh 6, 371-386 Name changed from allanite: Nickel E H, Mandarino J A (1987) Procedures involving the IMA Commission on New Minerals and Mineral Names and guidelines on mineral nomenclature. American Mineralogist 72, 1031-1042