gab·bro /ˈgæ(ˌ)bro/
輝長岩
Gab·bro n. Geol. A name originally given by the Italians to a kind of serpentine, later to the rock called euphotide, and now generally used for a coarsely crystalline, igneous rock consisting of lamellar pyroxene (diallage) and labradorite, with sometimes chrysolite (olivine gabbro).
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gabbro
n : one of a family of granular intrusive rocks