Definition of microcline in English:

Share this entry

microcline

Pronunciation: /ˈmʌɪkrə(ʊ)klʌɪn/

noun

[mass noun]
A green, pink, or brown crystalline mineral consisting of potassium-rich feldspar, characteristic of granite and pegmatites.
Example sentences
  • They collected several pegmatite pockets in which topaz was associated with both clear and smoky quartz, microcline, albite, muscovite, fluorite, and cassiterite.
  • Also associated with smoky quartz are microcline, fluorite, goethite (some as ‘onegite’), and topaz.
  • The pegmatite is composed of microcline, plagioclase and quartz with minor amounts of clinopyroxene, orthopyroxene, ilmenite and zircon.

Origin

Mid 19th century: from German Microklin, from Greek mikros 'small' + klinein 'to lean' (because its angle of cleavage differs only slightly from 90 degrees).

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.