Gainesite
Na2(Be,Li)(Zr,Zn)2(PO4)4 • 1.5H2O [CNMNC approved formula]
Named for Richard Venable Gaines (1917-1999), American mineralogist, economic geologist, and mineral collector of Earlysville, Virginia, USA, for his interest in beryllium minerals.
| IMA status : | Approved Species 1983 () |
| CLASSIFICATION | |
| Dana (8th edition) : |
40.05.04.01 |
| (40) Hydrated Phosphates | |
| (40.05) with miscellaneous formulae | |
| (40.05.04) Gainesite Group | |
| Nickel-Strunz (10th edition) : |
08.CA.20 |
| (08) Phosphates, Arsenates, Vanadates | |
| (08.C) Phosphates without Additional Anions, with H2O | |
| (08.CA) With small and large/medium cations | |
| Crystal system: | Tetragonal System |
| Point group (H-M): | 4/mmm (or 4/m 2/m 2/m) — ditetragonal-dipyramidal |