[kris-uh-lahyt] 
[ol-uh-veen, ol-uh-veen] | Mineralogy. any of a group of magnesium iron silicates, (Mg,Fe)2SiO4, occurring in olive-green to gray-green masses as an important constituent of basic igneous rocks. |
[ol-uh-vin-ik] , ol⋅i⋅vin⋅it⋅ic [ol-uh-vi-nit-ik] , adjective | chrys·o·lite (krĭs'ə-līt') n. See olivine. [Middle English crisolite, from Old French, from Medieval Latin crīsolitus, from Latin chrȳsolithus, from Greek khrūsolithos, topaz : khrūso-, chryso- + lithos, stone.] |
| ol·i·vine (ŏl'ə-vēn') n. A mineral silicate of iron and magnesium, principally (Mg, Fe)2SiO4, found in igneous and metamorphic rocks and used as a structural material in refractories and in cements. Also called chrysolite. [olive (from its color) + -ine1.] ol'i·vin'ic (-vĭn'ĭk), ol'i·vi·nit'ic (-və-nĭt'ĭk) adj. |
| olivine (ŏl'ə-vēn') Pronunciation Key
An olive-green to brownish-green orthorhombic mineral. Olivine is a common mineral in the igneous rocks, such as basalt and gabbro, that make up most of the Earth's crust beneath the oceans. Chemical formula: (Mg,Fe)2SiO4. ◇ Olivine in which the mafic component consists entirely of magnesium is called forsterite. Chemical formula: Mg2SiO4. ◇ Olivine in which the mafic component consists entirely of iron is called fayalite. Chemical formula: Fe2SiO4. |
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