Metarhyolite...

Metarhyolite...

A rock of metamorphic rhyolite (metarhyolite) with large phenocrysts of quartz and feldspar. This beautiful ventifact was found in a sand pit in Przedmoście, EN of Środa Śląska
Romuald Kosina
on Feb 5, 2010 12:09 pm
Image ID: 594631

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