Haggertyite

(repeating unit)Ba(Fe2+6Ti5Mg)O19IMA symbolHgt[1]Strunz classification4.CC.45Crystal systemHexagonalCrystal classDihexagonal dipyramidal (6/mmm)
H-M symbol: (6/m 2/m 2/m)Space groupP63/mmcUnit cella = 5.926, c = 23.32 [Å]; Z = 2IdentificationColorGrayCrystal habitMicroscopic hexagonal plateletsMohs scale hardness5LusterMetallicDiaphaneityOpaqueSpecific gravity4.87 (calculated)References[2][3]

Haggertyite is a rare barium, iron, magnesium, titanate mineral: Ba(Fe2+6Ti5Mg)O19 first described in 1996 from the Crater of Diamonds State Park near Murfreesboro in Pike County, Arkansas. The microscopic metallic mineral crystallizes in the hexagonal system and forms tiny hexagonal plates associated with richterite and serpentinitized olivine of mafic xenoliths in the lamproite host rock. It is an iron(II) rich member of the magnetoplumbite group. It is a light grey opaque mineral with calculated Mohs hardness of 5.

It was named for geophysicist Stephen E. Haggerty (born 1938) of the Florida International University.

References

  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ Haggertyite on Mindat.org
  3. ^ Haggertyite data on Webmineral
  • Grey, I. E., Danielle Velde, and A. J. Criddle, 1998, Haggertyite, a new magnetoplumbite-type titanate mineral from the Prairie Creek (Arkansas) lamproite: American Mineralogist, v. 83, p. 1323-1329 Am. Min. abstract

This article about a specific oxide mineral is a stub. You can help Wikipedia by expanding it.

  • v
  • t
  • e