Any of a group of crystalline silicate minerals common in igneous and metamorphic rocks and containing two metallic oxides, as of magnesium, iron, calcium, sodium, or aluminum.
Any of a group of monoclinic or orthorhombic silicate minerals usually containing iron or magnesium but not the hydroxyl radical, and commonly found in igneous rocks.
Any of a series of dark silicate minerals having the general chemical formula ABSi2 O6 , where A is either calcium (Ca), sodium (Na), magnesium (Mg), or iron (Fe), and B is either magnesium, iron, chromium (Cr), manganese (Mn), or aluminum (Al). Pyroxenes vary in color from white to dark green or black and are characterized by a rectangular-shaped cross section. They can be either monoclinic or orthorhombic and occur in igneous and metamorphic rocks. The minerals enstatite, diopside, and augite are pyroxenes.
Origin of pyroxene
French pyroxène Greek puro- pyro- Greek xenos stranger (originally viewed as a foreign substance when found in igneous rocks) ghos-ti- in Indo-European roots