aegirite
[ ey-guh-rahyt, ee-juh- ]
noun
a mineral, mainly sodium-ferric iron silicate, NaFe⋅(Si2O6), occurring in feldspathoid rocks in slender prismatic crystals.
Origin of aegirite
1- Also ae·gir·ine [ey-guh-reen, ee-juh-]. /ˈeɪ gəˌrin, ˈi dʒə-/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use aegirite in a sentence
Their pyroxene is principally aegirine or aegirine augite; some of them are rich in melanite.
The dark matrix consists of biotite, aegirine-augite and melanite.
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