A coarse-grained plutonic rock similar to gabbro but containing hypersthene.
- ‘The basement is mainly composed of quartz biotite norite and minor serpentinite which belong to the Ordovician Boganclough intrusion.’
- ‘Coeval gabbro intrusions are composed of unlayered, fine- to medium-grained, biotite-bearing norite, gabbronorite, gabbro and diorite.’
- ‘Enstatite occurs in plutonic basic and ultrabasic rocks such as peridotite and norite, and also in some high-grade metamorphic rocks.’
Late 19th century: from Norway + -ite.