Close up photograph of linear patterns in a piece of Wonderstone, a banded form of rhyolite; an igneous rock formed as volcanic...

Wonderstone Rhyolite

Nevada

Close up photograph of linear patterns in a piece of Wonderstone, a banded form of rhyolite; an igneous rock formed as volcanic magma cools; from Nevada.

Image #2709. Photo © copyright by Mark Windom.

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