views updated

norite A coarse-grained, basic igneous rock consisting of essential plagioclase feldspar, orthopyroxene (hypersthene or bronzite), and clinopyroxene (augite), with accessory ilmenite (see ACCESSORY MINERAL; and ESSENTIAL MINERAL). Orthopyroxene is dominant over clinopyroxene, and the plagioclase is a calcic type (labradorite or bytownite). Norites, like gabbros, are found as layers in many large, layered basic intrusions (see INTRUSIVE), as well as forming intrusions in their own right.

views updated

norite Activated charcoal used to decolorize solutions.

About this article

norite

All Sources -
Updated Media sources (1) About encyclopedia.com content Print Topic Share Topic