Difference between revisions of "Andesite"
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== Description == | == Description == | ||
| − | A fine-grain, volcanic rock primarily containing andesine (a [ | + | A fine-grain, volcanic rock primarily containing andesine (a [[plagioclase|plagioclase]] feldspar). Andesite may also contain smaller amounts of [[biotite|biotite]], [[hornblende|hornblende]], and [[pyroxene|pyroxene]]. Commonly found on the western coast of South America, andesite is named for the Andes mountains. |
== Additional Images == | == Additional Images == | ||
Revision as of 13:38, 7 January 2014
Description
A fine-grain, volcanic rock primarily containing andesine (a Plagioclase feldspar). Andesite may also contain smaller amounts of Biotite, Hornblende, and Pyroxene. Commonly found on the western coast of South America, andesite is named for the Andes mountains.
Additional Images
Andesite
Authority
- Encyclopedia Britannica, http://www.britannica.com Comment: "andesite." Encyclopædia Britannica. 2005. Encyclopædia Britannica Premium Service 21 Jan. 2005 .
- Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Andesite