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aegirite

American  
[ey-guh-rahyt, ee-juh-] / ˈeɪ gəˌraɪt, ˈi dʒə- /
Also aegirine

noun

  1. a mineral, mainly sodium-ferric iron silicate, NaFe⋅(Si 2 O6 ), occurring in feldspathoid rocks in slender prismatic crystals.

Etymology

Origin of aegirite

First recorded in 1830–40; Aegir + -ite 2

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.

Although exhibiting certain varietal differences, the essential identity of acmite and aegirite has long been established, but the latter and more recent name is pethaps in more general use, especially among petrologists.

From The Project Gutenberg Encyclopedia Volume 1 of 28 by Project Gutenberg

Being isomorphous with augite, crystals intermediate in composition between augite or diopside and aegirite are not uncommon, and these are known as aegirine-augite or aegirine-diopside.

From The Project Gutenberg Encyclopedia Volume 1 of 28 by Project Gutenberg

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.