Pretty purplish/pinkish/violet brass! All because there were a dozen or so steel cases (with copper wash covering) in my crockpot. Filled it up with 9mm/.380 brass from the indoor range after de-priming. Let it cook for a while, stirring now and then. Took pot outside after pouring off the cleaning mix of citric acid, dawn dish detergent and water. The steel cases were scattered throughout, of course, so everything in their vicinity got hit. Oh well, it won't change the performance of the ammo but I hate to see that colorful mix in my brass. Anyway, its all nice and clean. A word to the wise. Big Boomer