| | Description | |
| Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Engvoldsen, T.,Andersen, F.,Berge, S.A. & Burvald, I. (1991): Pegmatittmineraler fra Larvik ringkompleks. STEIN 18(1),15-71 | | Data | |
| Mineral Data: | Click here to view Gibbsite data | | Locality Data: | Click here to view Heia Quarry, Tvedalen, Larvik, Vestfold, Norway |
|