| Locality type: | Intrusion |
| Classification |
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| Species: | Prehnite |
| Formula: | Ca2Al2Si3O10(OH)2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Prehnite data |
| Locality Data: | Click here to view Mynydd Preseli intrusions, Eglwyswrw, Pembrokeshire, Wales, UK |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 320796 |
| Long-form Identifier: | 1:3:320796:3 |
| GUID (UUID V4): | e0a3af0c-c8de-4901-88d7-491826e32fd1 |
| Nearest other occurrences of Prehnite |
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| 39.0km (24.2 miles) | ⓘQuartz vein outcrop, St David's Head, St David's and the Cathedral Close, Pembrokeshire, Wales, UK |
| 39.1km (24.3 miles) | ⓘGreenschist outcrops, St David's Head, St David's and the Cathedral Close, Pembrokeshire, Wales, UK |
| 95.7km (59.5 miles) | ⓘLlanelwedd Quarry, Builth Wells, Powys, Wales, UK |
| References |
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| Reference Search (possible matching items) |
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 | | Journal (article/letter/editorial) | | intrusion of probable Carboniferous age in southwest Wales R. C A V E * , J. D. C O R N W E L L j & A. D. E...wide intrudes Lower Palaeozoic rocks in southwest Wales between Mathry and Llanboidy. It is of discontinuous...near the Bristol Channel, to the east of the South Wales Coalfield. 1. Introduction A low-level aeromagnetic...aeromagnetic survey of part of west Dyfed, South Wales (Fig. 1) (Cornwell & Cave, 1986) was carried out as...generally W to WSW-trending dolerite sills around Mynydd Preseli (Fig. 2). However, one group of anomalies in |
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