The Bornite occurrence on Mineral Mountain consists of a porphyry system with associated skarnification and mineralization of the enclosing sediments. The porphyry mineralization is described as an intrusive breccia zone (similar to Boss Mountain?).

Granitic rocks of the Oligocene Tkope River Intrusions contain molybdenum and copper mineralization in a zone of brecciation and multiple intrusions over an area 244 by 122 metres on the Cat 92 claim.

Skarn zones in Paleozoic sedimentary rocks to the south of the molybdenum-copper mineralization are reported to contain bornite, chalcocite, chalcopyrite, galena, sphalerite, pyrrhotite, and pyrite.