trippkeite
noun
tripp·ke·ite
ˈtripkēˌīt
plural -s
: a tetragonal arsenite of copper of unknown formula characterized by short often bent prismatic crystals which can be broken into flexible fibers because of the excellent prismatic cleavages
Word History
Etymology
German trippkeit, from Paul Trippke †1880 Polish mineralogist + German -it -ite