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Home » Rocks » Igneous Rocks » Andesite

Andesite


What is Andesite?



Andesite is a fine-grained, extrusive igneous rock composed mainly of plagioclase with other minerals such as hornblende, pyroxene and biotite.


More Igneous Rocks
  Peridotite
  Pumice
  Scoria
  Pegmatite
  Obsidian
  Gabbro
  Granite
  Basalt



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Andesite
Andesite: The specimen shown is about two inches (five centimeters) across.



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