Norite

Classification：Igneous Rock

Norite is basically composed of feldspar, elongated or medium feldspar and orthorhombic pyroxene, and often contains olivine. Norite is often symbiotic with ultramafic rocks and gabbro.

Norite, long columnar, self shaped - semi - self - shaped, and obvious alteration in internal alteration, with pyroxene, 30%; potash feldspar: columnar, semi - self - shaped, 20%; quartz: granular, form, 5%; columnar, plate, semi - self, internal alteration obvious, 20%; multiform, semi - self - shaped, often filled with feldspar; 20%; Biotite is rare, metallic minerals (magnetite, ilmenite, etc.): granular, shaped, 5%.
Related deposits

Category:
One of the basic intrusive rocks.

Related deposits:
Norite related minerals are mainly copper, nickel, platinum, iron and so on.