damkjernite
noun
dam·kjern·ite
ˈdamkyə(r)ˌnīt
plural -s
: a melanocratic dike rock with phenocrysts of biotite, pyroxene and barkevikitic hornblende in a groundmass of pyroxene, green hornblende, olivine, magnetite, and considerable calcite
Word History
Etymology
German damkjernit, from Damkjern, Telemark, Norway, where it was discovered + German -it -ite