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analcime
analcime (analcite) Mineral, Na(AlSi2O6)H2O; sp. gr. 2.2–2.3; hardness 5.0–5.5; cubic; can be colourless or white, with grey, red, and greenish tints, sometimes pigmented with iron oxides; vitreous lustre; crystals polyhedra and tetragonal trioctahedra, also found in granular aggregates; cleavage poor, cubic; occurs in rocks of low-temperature igneous origin that are rich in soda and water (e.g. nepheline syenites), and also volcanic tuffs.
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Cite this article
AILSA ALLABY and MICHAEL ALLABY. "analcime." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 9 Feb. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "analcime." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (February 9, 2012). http://www.encyclopedia.com/doc/1O13-analcime.html AILSA ALLABY and MICHAEL ALLABY. "analcime." A Dictionary of Earth Sciences. 1999. Retrieved February 09, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-analcime.html |
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analcite
analcite See ANALCIME.
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Cite this article
AILSA ALLABY and MICHAEL ALLABY. "analcite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 9 Feb. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "analcite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (February 9, 2012). http://www.encyclopedia.com/doc/1O13-analcite.html AILSA ALLABY and MICHAEL ALLABY. "analcite." A Dictionary of Earth Sciences. 1999. Retrieved February 09, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-analcite.html |
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