Vesignieite
Cu3Ba(VO4)2(OH)2 [CNMNC approved formula]
Named after the French mineral collector, Colonel Jean Paul Louis Vesignie (1870-1954) and former president of the Mineralgical Society of France.
| IMA status : | Valid species (Pre-IMA 1955) Grandfathered |
| CLASSIFICATION | |
| Dana (8th edition) : |
41.05.13.01 |
| (41) Anhydrous Phosphates Containing Hydroxyl or Halogen | |
| (41.05) where (A B)2 (XO4) Zq | |
| (41.05.13) | |
| Nickel-Strunz (10th edition) : |
08.BH.45 |
| (08) Phosphates, Arsenates, Vanadates | |
| (08.B) Phosphates, etc. with Additional Anions, without H2O | |
| (08.BH) With medium-sized and large cations, (OH,etc.):RO4 = 1:1 | |
| Crystal system: | Monoclinic System |
| Point group (H-M): | 2/m — prismatic |