Difference between revisions of "Pyroxene"
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== Description == | == Description == | ||
| − | One of the major classes of silicate minerals. Pyroxenes, in general, a series of doubly hydrated silicates usually containing either calcium, magnesium, or iron. They are distinguished from [ | + | One of the major classes of silicate minerals. Pyroxenes, in general, a series of doubly hydrated silicates usually containing either calcium, magnesium, or iron. They are distinguished from [[amphibole|amphiboles]], a second major class, by their cleavage planes. Amphiboles have cleavage angles of 56 and 124 degrees while pyroxenes have cleavage angles of 5 and 93 degrees. Pyroxenes are commonly found in both [[igneous|igneous]] and [[metamorphic|metamorphic]] rocks. Examples of some [[augite|augite]], [[enstatite|enstatite]], [[diopside|diopside]], pyroxenite, [[jadeite|jadeite]], spudomene, and [[rhodonite|rhodonite]]. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
Revision as of 11:42, 10 May 2016
Description
One of the major classes of silicate minerals. Pyroxenes, in general, a series of doubly hydrated silicates usually containing either calcium, magnesium, or iron. They are distinguished from amphiboles, a second major class, by their cleavage planes. Amphiboles have cleavage angles of 56 and 124 degrees while pyroxenes have cleavage angles of 5 and 93 degrees. Pyroxenes are commonly found in both Igneous and Metamorphic rocks. Examples of some Augite, Enstatite, Diopside, pyroxenite, Jadeite, spudomene, and Rhodonite.
Synonyms and Related Terms
pyroxenite; Pyroxen (Deut.); piroxeno (Esp.);pyroxène (Fr.); pyroxenen (Ned.); pirokseny (Pol.); piroxena (Port.); pyroxeen (Ned.)
Sources Checked for Data in Record
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- R.F.Symmes, T.T.Harding, Paul Taylor, Rocks, Fossils and Gems, DK Publishing, Inc., New York City, 1997
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
- Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Pyroxene (Accessed Nov. 9, 2005)