| 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 |
| Comments: | Heulandite was first found at Whitesmith Mine by the well-known mineral dealer Richard Barstow (1947 - 1982), who made his one and only trip to the locality with his long-standing collecting partner David Lloyd late in 1979 (David Lloyd, personal communication). Barstow and Lloyd collected 'brewsterite' specimens along the length of the old open cut, but when they were unwrapped and examined, a few looked a little different. They were identified as heulandite, a mineral not previously known from Strontian. Most of the specimens were sold, but Barstow and Lloyd retained the two best for their personal collections. They display blocky colourless crystals up to about 8 mm in length, with a slightly pearly lustre, in cavities with hexagonal 'nailhead' calcite, cubooctahedral pyrite and occasional brewsterite. |
| Habit: | blocky; coffin-shaped |
| Colour: | colourless |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Heulandite Subgroup data |
| Locality Data: | Click here to view Whitesmith Mine, Strontian, Fort William and Ardnamurchan, Highland, Scotland, UK |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1101909 |
| Long-form Identifier: | 1:3:1101909:5 |
| GUID (UUID V4): | 3d076367-300e-41d9-a0c5-246c58596963 |
| Nearest other occurrences of Heulandite Subgroup |
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| 33.7km (20.9 miles) | ⓘTobermory, Isle of Mull, Argyll and Bute, Scotland, UK |
| 36.9km (23.0 miles) | ⓘ'S Airde Beinn, Isle of Mull, Argyll and Bute, Scotland, UK |
| 45.2km (28.1 miles) | ⓘMaol nan Damh, Ben More, Isle of Mull, Argyll and Bute, Scotland, UK |
| 46.2km (28.7 miles) | ⓘCreag Brimishgan, Loch Na Keal, Isle of Mull, Argyll and Bute, Scotland, UK |
| 58.0km (36.0 miles) | ⓘMarble quarries, Kilchrist, Broadford, Isle of Skye, Eilean á Chèo, Highland, Scotland, UK |
| 67.1km (41.7 miles) | ⓘEas a Bradain, Luib, Isle of Skye, Eilean á Chèo, Highland, Scotland, UK |
| 71.9km (44.7 miles) | ⓘSgurr nam Boc, Glen Brittle, Minginish, Isle of Skye, Eilean á Chèo, Highland, Scotland, UK |
| 80.5km (50.0 miles) | ⓘPreshal More, Carbost, Minginish, Isle of Skye, Eilean á Chèo, Highland, Scotland, UK |
| 93.9km (58.3 miles) | ⓘThe Storr, Portree, Trotternish, Isle of Skye, Eilean á Chèo, Highland, Scotland, UK |
| 98.3km (61.1 miles) | ⓘA850 road cut, Blackhill, Edinbane, Waternish, Isle of Skye, Eilean á Chèo, Highland, Scotland, UK |
| References |
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Green, D. I., Tindle, A. G., Hubbard, N., McCallum, D., Jackson, B. (2008) Heulandite-Sr and heulandite-Ba, two zeolite group minerals new to Britain from Whitesmith Mine, Strontian, Highland Region, Scotland. Journal of the Russell Society, 11. 80-86 |
