| Locality type: | Pegmatite |
| Classification |
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| Species: | Helvine |
| Formula: | Be3Mn42+(SiO4)3S |
| Comments: | Occurs as intimately intergrowth with light blue bazzite. Raade & Kristiansen 2000 found a scandian-rich helvite with up to 1,7 % Sc2O3 |
| Habit: | irregular masses several cm across; irregular grains |
| Colour: | pinkish; deep brown-red |
| Abundance at site: | Very Rare |
| Confirmation |
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|
| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Helvine data |
| Locality Data: | Click here to view Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 558582 |
| Long-form Identifier: | 1:3:558582:3 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Helvine |
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|
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| 45.3km (28.1 miles) | ⓘBreigangen Mine, Fossum Iron Mines, Skien, Telemark, Norway |
| 55.9km (34.7 miles) | ⓘKjølsrød, Bjørkedalen, Porsgrunn, Telemark, Norway |
| 56.0km (34.8 miles) | ⓘRamsåskollen, Skien, Telemark, Norway |
| 56.1km (34.8 miles) | ⓘE18 roadcuts, Slevolden, Porsgrunn, Telemark, Norway |
| 56.7km (35.3 miles) | ⓘRønningen E 18 roadcuts, Porsgrunn, Telemark, Norway |
| 57.3km (35.6 miles) | ⓘBuer, Bjørkedalen, Porsgrunn, Telemark, Norway |
| 59.4km (36.9 miles) | ⓘKokkersvold, Kokkersvold - Blåfjell E18 roadcuts, Langangen, Porsgrunn, Telemark, Norway |
| 59.6km (37.0 miles) | ⓘFerry Quay, Bjørkøya, Porsgrunn, Telemark, Norway |
| 60.5km (37.6 miles) | ⓘChiavennite dike, Blåfjell (E18 roadcuts), Kokkersvold - Blåfjell E18 roadcuts, Langangen, Porsgrunn, Telemark, Norway |
| 61.5km (38.2 miles) | ⓘTangane, Siktesøya, Porsgrunn, Telemark, 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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