Haggertyite

General Information: Chemical Formula:Ba[Fe++6Ti5Mg]O19 Composition:(Molecular Weight = 1,040.10 gm)Barium 13.20 % BaMagnesium 2.34 % MgTitanium 23.02 % TiIron 32.22 % FeOxygen 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 inPhysical Properties: Color:gray. Diaphaniety:Opaque Hardness:5 - Apatite Luster:MetallicMore details...