Definition of pyroxene
: any of a group of igneous-rock-forming silicate minerals that contain calcium, sodium, magnesium, iron, or aluminum, usually occur in short prismatic crystals or massive form, are often laminated, and vary in color from white to dark green or black
Origin of pyroxene
French pyroxène, from Greek pyr- + xenos stranger
First Known Use: 1800
Learn More about pyroxene
Britannica.com: Encyclopedia article about "pyroxene"
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