An Etymological Dictionary of Astronomy and Astrophysics
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A silicate mineral of magnesium (Mg₂SiO₄) and iron (Fe₂SiO₄,) found commonly in basalt and in carbonaceous chondrites.

From Ger. Olivin, from olive, because of its olive-green to gray-green color, + -in equivalent to -ine a noun suffix used in chemical and mineralogical nomenclature.