Also called Porphyry. An expert told me they are microlites of plagioclase in basalt. photo

Alice Harrison | all galleries >> Galleries >> "For the beauty of the earth...." > Also called Porphyry. An expert told me they are microlites of plagioclase in basalt.

other sizes: small medium original auto

Alice Harrison		05-May-2009 21:35
Amazing.

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