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IGNEOUS ROCKS - Obsidian; Basalt; Granite<br />
Left: Obsidian -red, glassy; Center: Granite -dark gray, coarse grained, plutonic; Right: Basalt- extrusive, volcanic.

Fphoto-22988901A-2PS.jpg

IGNEOUS ROCKS - Obsidian; Basalt; Granite
Left: Obsidian -red, glassy; Center: Granite -dark gray, coarse grained, plutonic; Right: Basalt- extrusive, volcanic.

Copyright:© 1989 Paul Silverman - Fundamental Photographs

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