RE:RE:New Rock exposureI suspect that the battleship grey is Chalcocite (CuS). The spot of deep purple could be Bornite (Cu5FeS4) or copper tarnish. Specularite Hematite (Fe2O3) will give a similar grey colour but I suspect that the geological environment is all wrong. A very tantalizing photo, problably from Belmont. This would be a drill pad road down at the bottom of camp creek..