leucite

American  

[loo-sahyt] / ˈlu saɪt /

noun

1. a whitish or grayish mineral, potassium aluminum silicate, KAlSi 2 O 6 , found in alkali volcanic rocks.

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leucite British  

/ ˈluːsaɪt /

noun

1. a grey or white mineral consisting of potassium aluminium silicate: a source of potash for fertilizers and of aluminium. Formula: KAlSi 2 O 6

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Other Word Forms

• pseudoleucite
  noun
• leucitic
  adjective

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Etymology

Origin of leucite

From the German word Leukit, dating back to 1790–1800. See leuco-, -ite ¹

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Example Sentences

See Examples For:

leucite

There are great beds of it in the green sands of New Jersey, the Cartersville slates of Georgia, and the leucite rocks of Wyoming.

From Time Magazine Archive

The following minerals, according to Griffin, produce beads with soda, but do not fuse when heated alone: quartz, agalmatolyte, dioptase, hisingerite, sideroschilosite, leucite, rutile, pyrophyllite, wolckonskoite.

From A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations by Anonymous

Vesuvian lava, glass paste with numerous crystals of leucite; others of olivine, hornblende, and sanidine, porphyritically developed; small grains of magnetite.

From Volcanoes: Past and Present by Edward Hull

Group of leucite crystals of irregular form from the lava of 1855, congregated around a nucleus of crystals of plagioclase and magnetite.

From Volcanoes: Past and Present by Edward Hull

In mineral composition they scarcely differ from the lavas of Somma, the rock consisting of a base of leucite and augite, through which large crystals of augite and some of leucite are scattered.

From The Student's Elements of Geology by Sir Charles Lyell

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