You are doubtful to ever see a black pill. When a pill is pressed, color is added. To get black you need to add ALOT of different colors to get a black/dark color. Most of the time it either turns out baby poop green, shit eating brown, or some sory of grey color. I know pressers have tried to do it but cannot get it to come out. But I think most people believe it is more trouble then it is worth.