A note on some unusual primary minerals from the CSA mine, Cobar

The primary and secondary mineralogy of the CSA mine, some 6 km north of Cobar in central New South Wales, is dealt with elsewhere in this issue. The mine is not well known for mineral specimens, but some unusual specimens have been recovered from the primary zone by miners. Primary sulfides mainly consist of pyrite and chalcopyrite, with smaller amounts of cubanite, pyrrhotite, galena and sphalerite. In the 1980s and 1990s, workings between the 925 and 1080 sublevels in the M and K lenses encountered interesting specimens of crystalline pyrite and associated minerals (P. Rogers, pers.comm.).