perhaps chalcopyrite
Yeah nevermind...there aren't any indicators of the presence of copper, it's regular tarnished pyrite like EU said, octahedral habit.
hearing it called "tarnished" makes me want to toss in the rock pile out back..Ill stick with Chalcopyrite...lol..though it may end up there anyway.
hearing it called "tarnished" makes me want to toss in the rock pile out back..Ill stick with Chalcopyrite...lol..though it may end up there anyway.