| Locality type: | Pegmatite |
| Classification |
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| Species: | 'Columbite-(Fe)-Columbite-(Mn) Series' (not an IMA approved species) |
| Confirmation |
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| Validity: | Unconfirmed/Questioned |
| Data |
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| Mineral Data: | Click here to view Columbite-(Fe)-Columbite-(Mn) Series data |
| Locality Data: | Click here to view Bakstevalåsen, Gunhildrud, Øvre Eiker, Buskerud, Norway |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 477217 |
| Long-form Identifier: | 1:3:477217:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Columbite-(Fe)-Columbite-(Mn) Series |
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| 25.1km (15.6 miles) | ⓘSætersbergåsen, Modum, Buskerud, Norway |
| 42.6km (26.5 miles) | ⓘSpro pegmatite, Nesodden, Akershus, Norway |
| 54.1km (33.6 miles) | ⓘCappelen Quarry, Søve Mines, Nome, Telemark, Norway |
| 54.1km (33.6 miles) | ⓘSøve Mines, Nome, Telemark, Norway |
| 54.2km (33.7 miles) | ⓘHydro Quarry, Nome, Telemark, Norway |
| 54.9km (34.1 miles) | ⓘTufte Quarry, Søve Mines, Nome, Telemark, Norway |
| 59.3km (36.8 miles) | ⓘÅnnerud (Ånnerød), Våler, Østfold, Norway |
| 67.2km (41.7 miles) | ⓘKarlshus Mine, Råde, Østfold, Norway |
| 67.4km (41.9 miles) | ⓘHalvorsrød, Råde, Østfold, Norway |
| 72.0km (44.7 miles) | ⓘGjerdingselva, Lunner, Akershus, Norway |
| References |
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Hurum, Jørn H., Jahren, J., Berg, Hans-Jørgen, Bjerkgaard, T. (1997) En eksotisk pegmatitt i kambrosiluren ved Eikeren, Buskerud [An unusual pegmatite from the Eikeren area, South-eastern Norway - a preliminary report], in Kongsberg Mineralsymposium 1997. STEIN. Nordisk magasin for populær geologi, 24 (3) 125-127 Hurum, Jørn H., Jahren, J., Berg, Hans-Jørgen, Bjerkgård, T. (1997) En eksotisk pegmatitt i kambrosiluren ved Eikeren, Buskerud [An unusual pegmatite from the Eikeren area, South-eastern Norway - a preliminary report]. Norsk Bergverksmuseum Skrift, 12. 31-33 as niobitt (columbitt), preliminary analysis |
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