norite

noun

1. a granular igneous rock consisting of a mix of light and dark minerals, the former being calcic plagioclase feldspars, and the latter orthorhombic pyroxenes.

noun

1. a variety of gabbro composed mainly of hypersthene and labradorite feldspar

1. See gabbro.
2. A coarse-grained igneous rock, very similar to gabbro but containing orthopyroxene instead of clinopyroxene.