uintaite
noun
uin·ta·ite
variants or less commonly uintahite
-təˌīt
plural -s
: a black lustrous asphalt occurring especially in Utah that is useful in the arts (as in the manufacture of paints, varnishes, and inks) and for waterproofing
Word History
Etymology
Uinta or Uintah mountains of northeast Utah + English -ite