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RRUFF #998

Azoproite

Элементы:MgTiFeOB
Valence:MgTi^4+Fe^3+OB

Химия

IMA chemistry:
Mg2[(Ti,Mg),Fe3+]O2(BO3)
Valence chemistry:
Mg2((Ti4+,Mg),Fe3+)O2BO3

Классификация

Crystal systems:
orthorhombic
Space groups:
Pbam
Structural group:
Ludwigite
IMA status:
Approved

Происхождение

Country:
Russia
Published:
1970
Oldest age Ma:
144
Paragenetic modes:
Abiotic, Secondary, Stage 4a: Earth's earliest continental crust, PM31 - Contact metamorphism

Примечания

Konev A A, Lesedeva V S, Kashaev A A, Ushchapovskaya Z F (1970) Azoproite, a new mineral of the ludwigite group. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 99(2), 225-231 Note: This mineral is distinguished from ludwigite if Ti+Mg is greater than Fe 3+ in the M4 site