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Penrhyn Slate Quarry, Bethesda, Gwynedd (Caernarvonshire), Wales, UK
UK Grid Reference: SH620648
Latitude: 53°9'43"N
Longitude: 4°3'51"W
Latitude: 53°9'43"N
Longitude: 4°3'51"W
Profits from the quarry financed the construction of Penrhyn Castle at nearby Bangor. A feature of the castle is the great four-poster bed of Penrhyn slate, which weighs four tons.
Mineral List
| Albite Chalcocite | Chrysocolla Clinochlore | Hematite Malachite | Pyrite Quartz |
8 entries listed. 8 valid minerals.
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