eschynite
noun
es·chy·nite
variants:
or aeschynite \ ˈeskəˌnīt \
plural -s
Definition of eschynite
: a mineral (Ce,Ca,Fe,Th)(Ti,Cb)2O6 consisting of a rare oxide of titanium, columbium, cerium, and other metals isomorphous with priorite and found in nearly black prismatic crystals
Keep scrolling for more