augite
Americannoun
noun
Other Word Forms
Etymology
Origin of augite
1780–90; < Latin augītis a kind of precious stone < Greek, equivalent to aug ( ḗ ) sunlight + -ītis, feminine of -ītēs -ite 1
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Like obsidian, in fact, their edges are sharp but the shards have an almost twirly shape and lack the crystalline structure of black-colored minerals like augite or tourmaline.
From Salon ● Mar. 4, 2025
In the weathering of granite the quartz suffers little change; the felspar passes into dull cloudy, soft aggregates of kaolin, muscovite and secondary quartz, while chlorite, quartz and calcite replace the biotite, hornblende and augite.
From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" by Various
Volcanic rocks composed of felspar, augite, and hornblende.
From Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology by Lyell, Charles, Sir
Basalt is a dark or almost black compact homogeneous rock, composed of felspar and augite with magnetic iron.
From Geology by Geikie, James
The porphyry has a compact basis, like hornstone, of a dull brown colour, which contains imbedded crystals of felspar and quartz, and occasionally of augite.
From Narrative of a Second Expedition to the Shores of the Polar Sea by Franklin, John
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
