К минералам

RRUFF #938

Armenite

Элементы:BaCaAlSiOH
Valence:BaCaAlSiOH

Химия

IMA chemistry:
BaCa2(Al6Si9)O30·2H2O
Valence chemistry:
BaCa2(Al6Si9)O30·2H2O

Классификация

Crystal systems:
orthorhombic
Space groups:
Pnna, Pnc2
Structural group:
Milarite
IMA status:
Approved, Grandfathered

Происхождение

Country:
Norway
Published:
1939
Oldest age Ma:
2816
Paragenetic modes:
Abiotic, Secondary, Stage 4a: Earth's earliest continental crust, PM23 - Subaerial alteration, PM32 - Ba-Mn-Pb-Zn metamorphics

Примечания

Neumann H (1939) Armenite, a new mineral. Preliminary note. Norsk Geologisk Tidsskrift 19, 312-313 Chemical formula revised: Neumann H (1941) Armenite, a water-bearing barium-calcium-alumosilicate. Norsk Geologisk Tidsskrift, 21, 19-24