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RRUFF #898

Anorthite

Элементы:CaAlSiO
Valence:CaAlSiO

Химия

IMA chemistry:
Ca(Al2Si2O8)
Valence chemistry:
CaAl2Si2O8

Классификация

Crystal systems:
triclinic
Space groups:
P1, I1, C1
Structural group:
Feldspar
IMA status:
Approved, Grandfathered

Происхождение

Country:
Italy
Published:
1823
Oldest age Ma:
4700
Paragenetic modes:
Abiotic, Biotic, Primary, Secondary, Stage 1: Primary nebular phases, PM3 - Solar nebular condensates, PM4 - Primary chondrule phases, Stage 2: Planetesimal differentiation & alteration, PM5 - Primary asteroid phases, PM6 - Secondary asteroid phases, Stage 3a: Earth's earliest Hadean crust, PM8 - Mafic igneous rocks, Stage 4a: Earth's earliest continental crust, PM26 - Hadean detrital minerals, Stage 4b: Highly evolved igneous rocks, PM35 - Ultra-alkali and agpaitic igneous rocks, Stage 5: Initiation of plate tectonics, PM40 - Regional metamorphism, Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere, PM51 - Pyrometamorphic minerals

Примечания

Rose G (1823) Ueber den Feldspath, Albit, Labrador und Anorthit. Annalen der Physik und der Physikalischen Chemie 73, 173-208