General Information:
Chemical Formula:
Fe++8(Zr,Y)2Ti3Si3O24
Composition:
(Molecular Weight = 1,239.95 gm)
Yttrium 3.59 % Y
Zirconium 11.04 % Zr
Titanium 11.58 % Ti
Iron 36.03 % Fe
Silicon 6.80 % Si
Oxygen 30.97 % O
Empirical Formula:
Fe2+8Zr1.5Y0.5Ti3Si3O24
Environment:
In mare and non-mare basalts on the Moon.
IMA Status:
Approved IMA 1971
Locality:
Tranquility Base, Moon (Apollo 11).
Name Origin:
Named for the locality.
Physical Properties:
Color:
dark red.
Density:
4.7
Diaphaniety:
Subopaque
Habits:
Inclusions - Generally found as inclusions in other minerals., Thin - Flat dimensioned crystals., Lath - Shaped like a small, thin plaster lath, tabular (rectangular) in shape.
Luster:
Sub Metallic
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