porphyritic volcanic rock

June 9, 2022 • Pueblo Mountains • Harney County, Oregon

Coordinates: 42.10110,-118.68173 (click for map)
porphyritic volcanic rock [Pueblo Mountains, Harney County, Oregon]
Filename: 20220609-161020.jpg 4095x3071 pixels, ISO 200, f5.0 @ 1/500 sec
The light-colored inclusions are "phenocrysts."

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