Andesite

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Andesite
Igneous rock
Andesite pmg ss 2006.jpg
Photomicrograph o andesite in thin section (atween crossed polars)
Composition

Intermediate
Major minerals: plagioclase (eften andesine) an pyroxene and/or hornblende

Accessory minerals: magnetites, biotite, sphene, quartz

Andesite (/ˈændst/ or /ˈændzt/[1]) is an extrusive igneous, volcanic rock, o intermediate composeetion, wi aphanitic tae porphyritic textur.

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