orthoclase

English

Orthoclase

Etymology

ortho- +‎ -clase.

Noun

orthoclase (countable and uncountable, plural orthoclases)

(mineralogy) Potassium aluminum silicate, K Al Si₃O₈, 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.

Derived terms

orthoclasic

Translations

potassium aluminum silicate

Bulgarian: ортоклаз (ortoklaz)
Chinese: 正长石
Czech: ortoklas m
Dutch: orthoklaas (nl)
Finnish: ortoklaasi
German: Orthoklas m
Hebrew: אורתוקלז‎‎ (ōrtōqlaz)
Irish: ortaclás m
Japanese: 正長石 (seichōseki)
Korean: 정장석 (jŏŋ.jaŋ.sŏg)
Polish: ortoklaz m

Portuguese: ortoclase
Romanian: ortoză (ro) f
Russian: ортоклаз (ru) (ortoklaz)
Serbo-Croatian:
Cyrillic: ортоклаз

Roman: ortoklaz
Slovak: ortoklas
Spanish: ortoclasa (es) f, ortosa f
Swedish: ortoklas
Vietnamese: oc-to-cla

See also

rock, mineral, pegmatite
sanidine, adularia

Further reading

“Orthoclase” in David Barthelmy, Webmineral Mineralogy Database, 1997–.
orthoclase mindat.org‎, Hudson Institute of Mineralogy, accessed 29 August 2016

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