| Locality type: | Nature Reserve |
| Classification |
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| Species: | Helvine |
| Formula: | Be3Mn42+(SiO4)3S |
| Chemical Analyses: |
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| Oxide wt%: | | 1 |
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| SiO2 | 32.08 % |
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| Al2O3 | 0.23 % |
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| MnO | 27.02 % |
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| FeO | 16.14 % |
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| ZnO | 7.40 % |
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| CaO | 0.15 % |
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| MgO | 0.26 % |
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| BeO | 13.26 % |
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| S | 5.86 % |
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| O=S | -2.92 % |
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| Total: | 99.48 % |
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| Sample references: | |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Fluorite | ⓘ5 photos of Helvine associated with Fluorite at this locality. |
| Magnetite | ⓘ3 photos of Helvine associated with Magnetite at this locality. |
| Kamphaugite-(Y) | ⓘ3 photos of Helvine associated with Kamphaugite-(Y) at this locality. |
| Allanite-(Ce) | ⓘ1 photo of Helvine associated with Allanite-(Ce) at this locality. |
| Muscovite | ⓘ1 photo of Helvine associated with Muscovite at this locality. |
| Heulandite-Ca | ⓘ1 photo of Helvine associated with Heulandite-Ca at this locality. |
| Data |
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| Mineral Data: | Click here to view Helvine data |
| Locality Data: | Click here to view Hørtekollen, Sylling, Lier, Buskerud, Norway |
| Photo Gallery | View Gallery (13 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 88220 |
| Long-form Identifier: | 1:3:88220:0 |
| GUID (UUID V4): | 363bcac4-4ae3-45fd-a1d0-0dbba09d6a2b |
| Nearest other occurrences of Helvine |
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| 10.8km (6.7 miles) | ⓘIsi Prospect, Bærum (Baerum), Viken, Norway |
| 11.5km (7.1 miles) | ⓘKjenner Bismuth Mine, Lierskogen, Lier, Buskerud, Norway |
| 15.9km (9.9 miles) | ⓘGlomsrudkollen Zinc Mines, Åmot, Modum, Buskerud, Norway |
| 28.2km (17.5 miles) | ⓘRien Mine, Rien, Sande, Holmestrand, Vestfold, Norway |
| 34.8km (21.6 miles) | ⓘBakstevalåsen, Gunhildrud, Øvre Eiker, Buskerud, Norway |
| 37.2km (23.1 miles) | ⓘGjerdingselva, Lunner, Viken, Norway |
| 37.4km (23.3 miles) | ⓘKristiansen Quarry (Bånkall Quarry), Bånkall, Grorud, Oslo, Norway |
| 46.0km (28.6 miles) | ⓘNyseter Zinc Mines, Grua mining district, Grua, Lunner, Viken, Norway |
| 60.4km (37.5 miles) | ⓘSkreihaugen, Gran, Innlandet, Norway |
| 65.7km (40.9 miles) | ⓘHimberg Quarry, Ramnes, Tønsberg, Vestfold, Norway |
| References |
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Hørtekollen, Sylling, Lier, Buskerud, Norway