Rock 365 : Day 268 : Porphyritic Rhyolite
Day 268 : A porphyritic rhyolite from Garregelldrem, near Garreg, Beddgelert, Wales. Keele collection.
Day 268 : A porphyritic rhyolite from Garregelldrem, near Garreg, Beddgelert, Wales. Keele collection.
~ by hypocentre on September 25, 2010.
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