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Vesicular andesite (Upper Pliocene, 1.9 Ma; Sierra Grande … | Flickr
Andesite with flow banding
Andesite Rock | Properties, Composition, Formation, Uses
Andesite Archives - Cochise College Geology
Fanning columns in andesite flow, WA – Geology Pics
Andesite | Properties, Composition, Formation, Uses
P1 Andesite