Gutkovaite-Mn
CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4 • 5H2O [CNMNC approved formula]
Named for N. N. Gukova (1896-1960?), Russian mineralogist.
| IMA status : | Approved Species 2002 () |
| CLASSIFICATION | |
| Dana (8th edition) : |
60.01.03f.01 (This Dana# Added) |
| (60) Cyclosilicate Four-Membered Rings | |
| (60.01) as Titanosilicates | |
| (60.01.03f) Labuntsovite Group (Gutkovaite subgroup Monoclinic [Cm]) | |
| Nickel-Strunz (10th edition) : |
09.CE.30h |
| (09) Silicates | |
| (09.C) Cyclosilicates | |
| (09.CE) [Si4O12]8- 4-membered single rings (vierer-Einfachringe), without insular complex anions | |
| Crystal system: | Monoclinic System |
| Point group (H-M): | m — domatic |