Rhyolite rock colour, pattern & texture 1 – Ordovician volcanic rhyolite boulder in the Bunmahon Geological Garden on the Copper Coast European Geopark in County Waterford, Ireland.
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Rhyolite rock colour, pattern & texture 1 – Ordovician volcanic rhyolite boulder in the Bunmahon Geological Garden on the Copper Coast European Geopark in County Waterford, Ireland.