General Information:
Chemical Formula:
Ba[Fe++6Ti5Mg]O19
Composition:
(Molecular Weight = 1,040.10 gm)
Barium 13.20 % Ba
Magnesium 2.34 % Mg
Titanium 23.02 % Ti
Iron 32.22 % Fe
Oxygen 29.23 % O
Empirical Formula:
BaFe2+6Ti5MgO19
Environment:
The Fe++ dominant analog of hawthorneite. A member of the Magnetoplumbite group.
IMA Status:
Approved IMA 1996
Locality:
Found in the Prairie Creek lamproite, Crater of Diamonds State Park, near Murfreesboro, Pike County, Arkansas.
Name Origin:
Named after Stephen E. Haggerty (b. 1938), of the University of Massachusetts, Amherst, Massachusetts, U.S.A., in recognition of his important studies of titanate minerals in the Ea rth's mantle, and of oxide minerals in
Physical Properties:
Color:
gray.
Diaphaniety:
Opaque
Hardness:
5 - Apatite
Luster:
Metallic
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