Definition of olivine in English:

olivine

Line breaks: oliv|ine
Pronunciation: /ˈɒlɪviːn
 
, -ʌɪn/

noun

[mass noun]
An olive-green, grey-green, or brown mineral occurring widely in basalt, peridotite, and other basic igneous rocks. It is a silicate containing varying proportions of magnesium, iron, and other elements.
More example sentences
  • Basalt is a fine-grained igneous rock that is primarily composed of the iron- and magnesium-rich minerals pyroxene and olivine and calcium-rich plagioclase feldspar.
  • Gem-quality olivine (magnesium iron silicate), known as peridot, is an oily olive-green colour.
  • The most common phenocryst silicate phases are olivine, plagioclase and augite, typically, although not always, appearing in that order.

Origin

late 18th century: from Latin oliva (see olive) + -ine1.

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