noun
- A dark igneous rock composed mainly of pyroxene and plagioclase feldspar, similar to gabbro but with orthopyroxene instead of clinopyroxene.
Usage: geology; technical
Examples
- Norite is commonly found in layered igneous intrusions.
- The geologist identified the sample as norite based on its mineral composition.
- Norite formations are important sources of nickel and platinum ores.
- The Bushveld Complex in South Africa contains significant deposits of norite.