tellurian

adjective3

1. •
   (formal, literary) Of or relating to the earth; (specifically, chiefly science fiction) inhabiting planet Earth as opposed to other planets.

   • Of peaceful mutual Love, the whole mankind / Shall feel the happy power; joyful scenes / Of earthly bliss, tellurian happiness. — 1836
2. •
   Of a planet, being composed primarily of silicate rocks or metals; see also terrestrial planet.
3. •
   Of a mineral: containing tellurium.

   • The tellurian mineral from Goldfield, Nevada, described originally as goldfieldite by Ransome (1909), was proven to be tellurian tennantite by X-ray powder diffraction (Thompson 1946). — 1986

noun1

1. •
   An inhabitant of the Earth.