aplite

American  

[ap-lahyt] / ˈæp laɪt /

noun

Petrology.

1. a fine-grained granite composed essentially of feldspar and quartz.

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aplite British  

/ æpˈlɪtɪk, ˈæplaɪt /

noun

1. a light-coloured fine-grained acid igneous rock with a sugary texture, consisting of quartz and feldspars

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Other Word Forms

• aplitic adjective

Etymology

Origin of aplite

1875–80; apl- (variant of haplo- ) + -ite ¹ ( def. )

Example Sentences

These have very much the same composition as acid igneous rocks such as granite, aplite, hornblende granite, or intermediate rocks such as syenite and quartz diorite.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" by Various

The former deposits contain arsenopyrite and copper-bearing pyrite impregnating a mica-quartz-schist, adjacent to and in apparent genetic relation with aplite or pegmatite intrusives.

From The Economic Aspect of Geology by Leith, C. K. (Charles Kenneth)

Dykes and threads of aplite are very frequently to be observed traversing granitic bosses; they occur also, though in less numbers, in syenites, diorites, quartz-diabases and gabbros.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" by Various

Less frequently aplite forms stocks or bosses, or occupies the edges or irregular portions of the interior of outcrops of granite.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" by Various