epidosite
noun
ep·i·do·site
ˌepəˈdōˌsīt,
ə̇ˈpidəˌs-
plural -s
: a schistose metamorphic rock composed of green epidote with some quartz
Word History
Etymology
German epidosit, from Greek epidosis free giving, free gift, contribution, advance (from epididonai to give besides, increase, advance) + German -it -ite