| Locality type: | Mine |
| Classification |
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| Species: | 'Heulandite Subgroup' (not an IMA approved species) |
| Formula: | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Confirmation |
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|
| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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|
| Stilbite Subgroup | ⓘ3 photos of Heulandite Subgroup associated with Stilbite Subgroup at this locality. |
| Laumontite | ⓘ3 photos of Heulandite Subgroup associated with Laumontite at this locality. |
| Quartz | ⓘ3 photos of Heulandite Subgroup associated with Quartz at this locality. |
| Calcite | ⓘ1 photo of Heulandite Subgroup associated with Calcite at this locality. |
| Data |
|---|
|
| Mineral Data: | Click here to view Heulandite Subgroup data |
| Locality Data: | Click here to view Helgustadir Mine, Reyðarfjörður, Fjarðabyggð, Eastern Region, Iceland |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 528031 |
| Long-form Identifier: | 1:3:528031:5 |
| GUID (UUID V4): | 558f56c0-fb66-4049-b6b1-100556e6e5cf |
| Nearest other occurrences of Heulandite Subgroup |
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| 8.3km (5.2 miles) | ⓘQuarry at Oddskarðsvegur, Neskaupstaður, Fjarðabyggð, Eastern Region, Iceland |
| 8.5km (5.3 miles) | ⓘHólmaháls, Reyðarfjörður, Fjarðabyggð, Eastern Region, Iceland |
| 9.9km (6.2 miles) | ⓘTunnel Norðfjörður, Eskifjörður, Fjarðabyggð, Eastern Region, Iceland |
| 14.7km (9.1 miles) | ⓘReyðarfjall south side, Fáskrúðsfjörður, Fjarðabyggð, Eastern Region, Iceland |
| 17.4km (10.8 miles) | ⓘDigritindur, Fáskrúðsfjörður, Fjarðabyggð, Eastern Region, Iceland |
| 19.2km (11.9 miles) | ⓘFossdalur, Reyðarfjörður, Fjarðabyggð, Eastern Region, Iceland |
| 20.4km (12.7 miles) | ⓘMount Skessa, Reyðarfjörður, Fjarðabyggð, Eastern Region, Iceland |
| 21.5km (13.4 miles) | ⓘLambadalstindur, Fáskrúðsfjörður, Fjarðabyggð, Eastern Region, Iceland |
| 23.5km (14.6 miles) | ⓘRoad F936 Áreyjadal, Reyðarfjörður, Fjarðabyggð, Eastern Region, Iceland |
| 23.6km (14.6 miles) | ⓘSkagafell, Fljótsdalshérað, Múlaþing, Eastern Region, Iceland |
| References |
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