cornubianite

noun

cornubianite

noun

Etymology From Cornubian + -ite.

1

Chemistry, Geography, Geology, Mineralogy, Natural sciences, Physical sciences A dark-blue laminated rock found in Cornwall with granite.

Thus Dr. Boase (1) proposed the terms cornubianite and proteolite for certain varieties of rock occurring near the junctions of the sedimentary rocks and the granite.1888, Jethro Justinian Harms Teall, British Petrography: With Special Reference to the Igneous Rocks:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.