Min. [f. the name of its discoverer, Count Bournon.] Antimonial sulphide of lead and copper; a brittle opaque mineral with metallic luster.
1805. R. Jameson, Syst. Min., II. 579. (Dana) Bournonite, Antimonial lead ore.
1863–79. Watts, Dict. Chem., Bournonite … is found in the copper mines of Cornwall.
