pyroxene

noun
py·​rox·​ene | \pī-ˈräk-ˌsēn, pə-\

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

Other Words from pyroxene

pyroxenic \ˌpī-​ˌräk-​ˈsē-​nik, pə-​, -​ˈse-​ \ adjective
pyroxenoid \pī-​ˈräk-​sə-​ˌnȯid, pə-​ \ adjective or noun

First Known Use of pyroxene

1800, in the meaning defined above

History and Etymology for pyroxene

French pyroxène, from Greek pyr- + xenos stranger

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The first known use of pyroxene was in 1800

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