Contents

EnglishEdit

 
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Orthoclase

EtymologyEdit

ortho- +‎ -clase.

NounEdit

orthoclase (countable and uncountable, plural orthoclases)

  1. (mineralogy) Potassium aluminum silicate, KAlSi3O8, a common feldspar of igneous, plutonic, and metamorphic rocks. Orthoclase is the main feldspar of pegmatite occurrences, where it is most commonly flesh-colored. Orthoclase is used in the ceramic and glass industries and as a decorative gravel.

TranslationsEdit

See alsoEdit

rock, mineral, pegmatite
sanidine, adularia

External linksEdit

  • Orthoclase” in David Barthelmy, Webmineral Mineralogy Database[1], 1997–.
  • orthoclase mindat.org[2], Hudson Institute of Mineralogy, accessed 29 August 2016