Alumoåkermanite

Химия

IMA chemistry:: (Ca,Na)2(Al,Mg,Fe2+)(Si2O7)
Valence chemistry:: (Ca,Na)2(Al,Mg,Fe2+)(Si2O7)

Классификация

Crystal systems:: tetragonal
Space groups:: P421m
Structural group:: Melilite
IMA status:: Approved

Происхождение

Country:: Tanzania
Published:: 2008
Oldest age Ma:: 354
Paragenetic modes:: Abiotic, Biotic, Primary, Secondary, Stage 3a: Earth's earliest Hadean crust, PM8 - Mafic igneous rocks, Stage 4a: Earth's earliest continental crust, PM31 - Contact metamorphism, Stage 4b: Highly evolved igneous rocks, PM35 - Ultra-alkali and agpaitic igneous rocks, PM36 - Carbonatites & kimberlites, Stage 5: Initiation of plate tectonics, PM40 - Regional metamorphism, Stage 10b: Anthropogenic minerals, PM56 - Slag and smelter minerals

Примечания

Wiedenmann D, Zaitsev A N, Britvin S N, Krivovichev S V, Keller J (2009) Alumoåkermanite, (Ca,Na)2(Al,Mg,Fe2+)(Si2O7), a new mineral from the active carbonatite-nephelinite-phonolite volcano Oldoinyo Lengai, northern Tanzania. Mineralogical Magazine 73, 373-384