К минералам

RRUFF #835

Alleghanyite

Элементы:MnSiOH
Valence:Mn^2+SiOH

Химия

IMA chemistry:
Mn2+5(SiO4)2(OH)2
Valence chemistry:
Mn2+5(SiO4)2(OH)2

Классификация

Crystal systems:
monoclinic
Space groups:
P21, b
Structural group:
Humite
IMA status:
Approved, Grandfathered

Происхождение

Country:
USA
Published:
1932
Oldest age Ma:
1898
Paragenetic modes:
Abiotic, Secondary, Stage 4a: Earth's earliest continental crust, PM23 - Subaerial alteration, PM32 - Ba-Mn-Pb-Zn metamorphics

Примечания

Ross C S, Kerr P F (1932) The manganese minerals of a vein near Bald Knob, North Carolina, American Mineralogist 17, 1-15