schönfelsite

noun

schön·​fels·​ite

ˈshōnˌfelˌzīt,

ˈshə(r)n-

plural -s

: a feldspar-free basalt with phenocrysts of olivine and augite in a dense groundmass of titanomagnetite, orthorhombic pyroxene, apatite, interstitial brown glass, and traces of basic plagioclase

Word History

Etymology

German schönfelsit, from Altschönfels, Saxony, Germany + German -it -ite

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