Cornubianite

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A dark-blue laminated rock found in Cornwall with granite. countable, uncountable

    "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."

Example

More examples

"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."

Etymology

From Cornubian + -ite.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.