К минералам

RRUFF #811

Akaganeite

Элементы:FeNiOHCl
Valence:Fe^3+Ni^2+OHCl

Химия

IMA chemistry:
(Fe3+,Ni2+)8(OH,O)16Cl1.25·nH2O
Valence chemistry:
(Fe3+,Ni2+)8(OH,O)16Cl1.25·nH2O

Классификация

Crystal systems:
tetragonal, monoclinic
Space groups:
I2, m, I4, C2
Structural group:
Coronadite
IMA status:
Approved, Renamed

Происхождение

Country:
Japan
Published:
1962
Oldest age Ma:
2038
Paragenetic modes:
Abiotic, Biotic, Primary, Secondary, Stage 3b: Earth's earliest hydrosphere, PM14 - Hot springs & geysers, Stage 5: Initiation of plate tectonics, PM42 - Sea-floor Mn nodules, Stage 7: Great Oxidation Event, PM47 - Low-T subaerial oxidative hydration/weathering, Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere, PM48 - Soil leaching zone minerals

Примечания

Mackay, A L (1962) ß-ferric oxyhydroxide-akaganéite. Mineralogical Magazine 33, 270-280 Chemical formula redefined: Post J E, Heaney P J, von Dreele R B, Hanson J C (2003) Neutron and temperature-resolved synchrotron X-ray powder diffraction study of akaganéite. American Mineralogist 88, 782-788