| Name: | Rankamaite Rkm |
| IMA Chemistry: | (Na,K)3(Ta,Nb,Al)11(O,OH)31 |
| Chemistry Elements: | The mineral Rankamaite contains elements: Sodium (Na) Potassium (K) Tantalum (Ta) Niobium (Nb) Aluminum (Al) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | Democratic Republic of the Congo |
| Year First Published: | 1968 |
| IMA Status: | Approved |
| Status Notes: | von Knorring O, Vorma A, Nixon P H (1969) Rankamaite, a new tantalum mineral from Kivu, Congo, Bulletin of the Geological Society of Finland 41, 47-56 |
| Structural Group Name: | |
| Fleischer's Group Name: | |
| Crystal Systems: | orthorhombic |
| Oldest Known Age: | 954.6 Million Years Ago |
| More Info: | Search Wikipedia: Rankamaite (Wiki) Search Mindat: Rankamaite Search Web Mineral DB: Rankamaite |