akerite
noun
aker·ite
ˈȯ-kə-ˌrīt,
ˈa-
plural -s
: a quartz-syenite rock containing oligoclase and augite besides soda-microcline
Word History
Etymology
German åkerit, from Åker, former district near Oslo, Norway + German -it -ite
First Known Use
1890, in the meaning defined above