| Locality type: | Pegmatite |
| Classification |
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| Species: | Bertrandite |
| Formula: | Be4(Si2O7)(OH)2 |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Bohseite | 1 |
| Data |
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| Mineral Data: | Click here to view Bertrandite data |
| Locality Data: | Click here to view Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 169899 |
| Long-form Identifier: | 1:3:169899:2 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Bertrandite |
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| 0.7km (0.5 miles) | ⓘHøydalen, Tørdal, Drangedal, Telemark, Norway |
| 42.0km (26.1 miles) | ⓘKlauvreid Pegmatite Quarries, Klauvreid, Tokke, Telemark, Norway |
| 55.9km (34.7 miles) | ⓘKjølsrød, Bjørkedalen, Porsgrunn, Telemark, Norway |
| 56.7km (35.3 miles) | ⓘRønningen E 18 roadcuts, Porsgrunn, Telemark, Norway |
| 63.3km (39.3 miles) | ⓘTorbjørnsås Quarry, Auenlandet, Porsgrunn, Telemark, Norway |
| 63.6km (39.5 miles) | ⓘSagåsen Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway |
| 63.8km (39.6 miles) | ⓘSaga 1 Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway |
| 65.2km (40.5 miles) | ⓘHeia Quarry, Tvedalen, Larvik Commune, Vestfold, Norway |
| 65.3km (40.6 miles) | ⓘA/S Granit Quarry, Tuften, Tvedalen, Larvik Commune, Vestfold, Norway |
| 65.4km (40.7 miles) | ⓘVevja Quarry, Tvedalen, Larvik Commune, Vestfold, Norway |
| References |
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Pieczka, Adam, Kristiansen, Roy, Stachowicz, Marcin, Dumańska-Słowik, Magdalena, Gołębiowska, Bożena, Sęk, Mateusz P., Nejbert, Krzysztof, Kotowski, Jakub, Marciniak-Maliszewska, Beata, Szuszkiewicz, Adam, et al. (2024) Heflikite, ideally Ca2(Al2Sc)(Si2O7)(SiO4)O(OH), the first scandium epidote-supergroup mineral from Jordanów Śląski, Lower Silesia, Poland and from Heftetjern, Tørdal, Norway. Mineralogical Magazine, 88 (3). 228-243 doi:10.1180/mgm.2023.98 |
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Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway