Definitions for oligoclaseˈɒl ɪ goʊˌkleɪs
ADVERTISEMENT
Random House Webster's College Dictionary
ol•i•go•claseˈɒl ɪ goʊˌkleɪs(n.)
a plagioclase feldspar occurring in white, gray, greenish, or reddish crystals.
Category: Mineralogy
Origin of oligoclase:
1825–35
Princeton's WordNet
plagioclase, oligoclase(noun)
any of a series of triclinic feldspars that form rocks
Wiktionary
oligoclase(Noun)
A plagioclase feldspar, the second member of the Albite-Anorthite solid solution series. Primarily found as small crystals in impure marble. Oligoclase contains a small amount of calcium substituting for some of the sodium in its formula. Oligoclase with reddish-golden inclusions found in Norway and Canada is called sunstone.
Citation
Use the citation below to add this definition to your bibliography:
"oligoclase." Definitions.net. STANDS4 LLC, 2013. Web. 19 May 2013. <http://www.definitions.net/definition/oligoclase>.