alb3836033

pitchstone

Pitchstone is a volcanic (extrusive) igneous rock formed by the rapid cooling of rhyolitic lavas, and has a resinous or pitchy appearance. It has a glassy, aphanitic texture.
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Title:
pitchstone
Caption:
Pitchstone is a volcanic (extrusive) igneous rock formed by the rapid cooling of rhyolitic lavas, and has a resinous or pitchy appearance. It has a glassy, aphanitic texture.
Credit:
Album / Science Source / Mark A. Schneider
Releases:
Model: No - Property: No
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Image size:
4256 x 2848 px | 34.7 MB
Print size:
36.0 x 24.1 cm | 14.2 x 9.5 in (300 dpi)