pigeonite

[ pij-uh-nahyt ]
/ ˈpɪdʒ əˌnaɪt /

noun Mineralogy.

a monoclinic variety of pyroxene consisting mainly of a mixture of (MgFe)SiO3 and CaMg(SiO3)2.

Origin of pigeonite

1895–1900; named after Pigeon Point, NE Minnesota; see -ite1