norite

/nawr-ahyt/US // ˈnɔr aɪt //UK // (ˈnɔːraɪt) //

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Definitions

n.名词 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.

In Canada great portions of the eastern portion of the Dominion are formed of gabbros, norite, anorthosite and allied rock types.
Near the ores there are likely to be granitic rocks, which, like the ores, seem to be segregations from the norite magma.
In New York the emery deposits are segregations of aluminum and iron oxides in norite (a basic igneous rock).