Publication details
Belogubite, a New Mineral of the Chalcanthite Group from the Gaiskoe Deposit, South Urals, Russia
| Authors | |
|---|---|
| Year of publication | 2020 |
| Type | Article in Periodical |
| Magazine / Source | Geology of Ore Deposits |
| MU Faculty or unit | |
| Citation | |
| Web | https://link.springer.com/article/10.1134/S1075701520070065 |
| Doi | http://dx.doi.org/10.1134/S1075701520070065 |
| Keywords | belogubite; new mineral; chalcanthite group; Gaiskoe deposit; South Urals |
| Description | Belogubite CuZn(SO4)(2) . 10H(2)O, a new mineral of the chalcanthite group, is found in the Gai (Gaiskoe) massive sulfide deposit, South Urals, Russia. This mineral forms aggregates of blue grains up to 1 mm. It is optically biaxial (-), n(p) = 1.512(2), n(m) = 1.525(2), n(g) = 1.531(2), 2V = 70(10)degrees. The chemical composition of the holotype sample is as follows (wt %): 1.12 MgO, 0.10 MnO, 3.15 FeO, 8.98 CuO, 18.02 ZnO, 32.49 SO3, and 36.75 H2O, total 100.61. The empirical formula is (Cu0.55Zn0.45)(sigma 1.00)(Zn0.64Fe0.22Mg0.14Mn0.01)(sigma 1.01)S1.99O7.98 . 10.02H(2)O. The crystal structure of belogubite is studied using the single crystal method, R = 0.016. The mineral is triclinic, P (1) over bar The unit cell parameters are: a = 6.2548(1), b = 10.6112(2), c = 6.0439(1) angstrom, alpha = 82.587(1), beta = 109.625(1), gamma = 104.848(1)degrees, V = 364.81(1) angstrom(3), and Z = 1. The strongest reflections of the powder XRD pattern [d(meas)., angstrom (I, %) (hkl) are: 5.73 (35) (100), 5.576 (47) (-110), 4.873 (100) (-111), 3.907 (31) (021), 3.719 (45) (0 -21), 3.229 (27) (111), 2.915 (25) (221), and 2.684 (26) (130). |