olivine

柯林斯词典

olivine /ˈɒlɪˌviːn, ˌɒlɪˈviːn/

• 1. N an olive-green mineral of the olivine group, found in igneous and metamorphic rocks. The clear-green variety (peridot) is used as a gemstone. Composition: magnesium iron silicate. Formula: (MgFe)2SiO4. Crystal structure: orthorhombic 橄榄石 (Also called chrysolite)

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