| | Description | |
| Comments: | Pyroclore from the Fen complex is often pseudomorphed to columbite and an unidentified metamict mineral. Primary columbite is actualy rarer than this pseudomorphoses.
Columbite occure in søvite, "rauhaugite and "rødberg". | | Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Aubert (1947); Bjørlykke (1953); Sørum (1955, p. 48 and 1955b); Sæther (1957); Åmli (1974); Neumann (1985, pp. 68, 77 and 78). | | Data | |
| Mineral Data: | Click here to view Columbite data | | Locality Data: | Click here to view Fen Complex, Nome, Telemark, Norway |
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