General Information:
Chemical Formula:
Na2MgB12O20·8(H2O)
Composition:
(Molecular Weight = 628.08 gm)
Sodium 7.32 % Na
Magnesium 3.87 % Mg
Boron 20.65 % B
Hydrogen 1.93 % H
Oxygen 66.23 % O
bword://Ti">Ti
Iron 6.71 % Fe
Oxygen 38.47 % O
Empirical Formula:
Mg0.75Fe2+0.25Ti2O5
Environment:
Ti oxides associated with deep-seated intrusives.
IMA Status:
Approved IMA 1970
Locality:
Tranquillity Base, Moon. Smoky Butte, Garfield Co., MT,
Name Origin:
Named after the three astronauts of Apollo 11: Neil A. ARMstrong, Edwin E. "Buzz" ALdrin, and Michael COLlins.
Physical Properties:
Color:
gray.
Density:
4
Diaphaniety:
Opaque
Habits:
Granular - Generally occurs as anhedral to subhedral crystals in matrix., ,
Hardness:
6 - Orthoclase
Luster:
Metallic
More details...