adjective
- of, relating to, or containing bornite, a copper ore mineral with a distinctive iridescent tarnish
Usage: mineralogy; technical
Examples
- The bornitic ore samples showed the characteristic purple and blue iridescence.
- Geologists identified bornitic deposits in the copper-rich rock formation.
- The bornitic mineral content made the specimen valuable for industrial extraction.
- Under magnification, the bornitic crystals displayed their typical peacock-like coloration.