Haggertyite
BaFe6Ti5MgO19 [CNMNC approved formula]
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.
| IMA status : | Approved Species 1996 () |
| CLASSIFICATION | |
| Dana (8th edition) : |
07.04.02.02 |
| (07) Multiple Oxides | |
| (07.04) with O19 groups | |
| (07.04.02) (Hexagonal, P63/mmc) Strongly Magnetic | |
| Nickel-Strunz (10th edition) : |
04.CC.45 |
| (04) Oxides and Hydroxides | |
| (04.C) Metal:Oxygen = 2:3, 3:5, and Similar | |
| (04.CC) With large and medium-sized cations | |
| Crystal system: | Hexagonal System |
| Point group (H-M): | 6/mmm (or 6/m 2/m 2/m) — dihexagonal-dipyramidal |