gabbroic
/ɡəˈbroʊɪk/
adjective
- Relating to or resembling gabbro, a dark, coarse-grained igneous rock.
- Geologists identified the gabbroic composition of the mountain's core.
- The gabbroic layer of the ocean crust is denser than the overlying basalt.
- The sample had a typical gabbroic texture with large crystals of pyroxene.