Gatehouseite
Mn2+5(PO4)2(OH)4 [CNMNC approved formula]
Named for Bryan Michael Kenneth Cummings Gatehouse (1932- ), crystal chemist, Monash University, Melbourne, Australia.
| IMA status : | Approved Species 1993 () |
| CLASSIFICATION | |
| Dana (8th edition) : |
41.04.01.02 |
| (41) Anhydrous Phosphates Containing Hydroxyl or Halogen | |
| (41.04) where (A B)5 (XO4)2 Zq | |
| (41.04.01) | |
| Nickel-Strunz (10th edition) : |
08.BD.10 |
| (08) Phosphates, Arsenates, Vanadates | |
| (08.B) Phosphates, etc. with Additional Anions, without H2O | |
| (08.BD) With only medium-sized cations, (OH, etc.):RO4= 2:1 | |
| Crystal system: | Orthorhombic System |
| Point group (H-M): | 222 — disphenoidal |