Difference between revisions of "Perovskite"
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== Description == | == Description == | ||
| − | A mineral composed of [http://cameo.mfa.org/materials/fullrecord.asp?name=calcium | + | A mineral composed of [http://cameo.mfa.org/materials/fullrecord.asp?name=calcium%20oxide calcium oxide] and [http://cameo.mfa.org/materials/fullrecord.asp?name=titanium%20dioxide titanium dioxide]. Perovskite occurs in nature in Russia and was discovered in 1839 by Gustav Rose. The transparent to opaque stone varies in color from yellow to dark brown. Perovskite has also been made synthetically and is used primarily as a matrix for catalysts. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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== Authority == | == Authority == | ||
| − | * | + | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 |
* ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976 | * ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976 | ||
Revision as of 07:41, 24 July 2013
Description
A mineral composed of calcium oxide and titanium dioxide. Perovskite occurs in nature in Russia and was discovered in 1839 by Gustav Rose. The transparent to opaque stone varies in color from yellow to dark brown. Perovskite has also been made synthetically and is used primarily as a matrix for catalysts.
Synonyms and Related Terms
calcium titanate; perovskita (Esp.); perovskite (Fr., Port.); Perowskit (Deut.); perovskiet (Ned.)
Other Properties
Isometric system with cubic cleavage. Luster = adamantine.
| Composition | CaTiO3 |
|---|---|
| Mohs Hardness | 5.5 |
| Density | 4 |
Authority
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
- Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Perovskite (Accessed Sept. 14, 2005)