| Locality type: | Quarry |
| Classification |
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| Species: | Columbite-(Fe) |
| Formula: | Fe2+Nb2O6 |
| Comments: | Reference refered it to as Ramskjær, Kragerø, (Old label?), but must be Ramskjær, Risør (the neighbourhood municipality) |
| Confirmation |
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|
| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Columbite-(Fe) data |
| Locality Data: | Click here to view Ramskjær Feldspar Quarry, Søndeled, Risør, Agder, Norway |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 688701 |
| Long-form Identifier: | 1:3:688701:8 |
| GUID (UUID V4): | f5b40a7c-2caa-47e3-a5c5-0a7ce89e0921 |
| Nearest other occurrences of Columbite-(Fe) |
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| 17.8km (11.1 miles) | ⓘTangen Feldspar Mine, Kragerø, Telemark, Norway |
| 65.6km (40.8 miles) | ⓘHåkestad Quarry, Håkestad, Tjølling, Larvik, Vestfold, Norway |
| 75.6km (47.0 miles) | ⓘEptevatnet 04 Feldspar Quarry (Hovåsen), Iveland, Agder, Norway |
| 76.6km (47.6 miles) | ⓘFossbekk Feldspar Quarry, Iveland, Agder, Norway |
| 76.8km (47.7 miles) | ⓘLjosland, Iveland, Agder, Norway |
| 76.8km (47.7 miles) | ⓘLjosland 03 Feldspar Quarry, Ljosland, Iveland, Agder, Norway |
| 77.0km (47.9 miles) | ⓘHåverstad, Iveland, Agder, Norway |
| 77.3km (48.0 miles) | ⓘFrikstad 07 Feldspar Quarry, Frikstad, Iveland, Agder, Norway |
| 77.6km (48.2 miles) | ⓘLandsverk, Evje og Hornnes, Agder, Norway |
| 77.7km (48.3 miles) | ⓘLandsverk 1 Feldspar Quarry (Jokeli), Landsverk, Evje og Hornnes, Agder, Norway |
| References |
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Balassone, Giuseppina, Danisi, Rosa Micaela, Armbruster, Thomas, Altomare, Angela, Moliterni, Anna Grazia, Petti, Carmela, Mondillo, Nicola, Ghiara, Maria Rosaria, Saviano, Michele (2015) An insight into crystal chemistry and cation order of columbite-(Fe) and columbite-(Mn) from worldwide occurrences. Neues Jahrbuch für Mineralogie - Abhandlungen: Journal of Mineralogy and Geoche, 192 (3) 275-287 doi:10.1127/njma/2015/0285sample from Ramskjær used in the study, sample nr 22988 |
| Reference Search (possible matching items) |
|---|
 | Balassone, Giuseppina, Danisi, Rosa Micaela, Armbruster, Thomas, Altomare, Angela, Moliterni, Anna Grazia, Petti, Carmela, Mondillo, Nicola, Ghiara, Maria Rosaria, Saviano, Michele (2015) An insight into crystal chemistry and cation order of columbite-(Fe) and columbite-(Mn) from worldwide occurrences. Neues Jahrbuch für Mineralogie - Abhandlungen: Journal of Mineralogy and Geoche, 192 (3) 275-287 doi:10.1127/njma/2015/0285 | Journal (article/letter/editorial) | | crystal chemistry and cation order of columbite-(Fe) and columbite-(Mn) from worldwide occurrences Giuseppina...electronic supplement Abstract: A set of nine columbite samples (Fe,Mn)(Nb,Ta)2O6, preserved in the Mineralogical...All the samples are columbite-(Fe), except for two samples corresponding to columbite-(Mn). For seven samples...refinements showed that five samples displayed strong (Fe,Mn)2+ vs. (Nb,Ta)5+ disorder at the two octahedral...The octahedral coordination of (Nb, Ta)5+ in columbite is characterized by out-of-center distortion, |
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