— bornitic /bawr nit"ik/ , adj.
/bawr"nuyt/ , n.
a common mineral and important ore of copper, copper iron sulfide, Cu 5 FeS 4 , occurring in masses, of brownish color when first exposed to the air; peacock ore.
[ 1850-55; named after I. von Born (1742-91), Austrian mineralogist; see -ITE 1 ]