No problem, I asked a LOT of questions about substrates for plants a few weeks back in the thread "I've jumped over..." in the planted forums; there you can see picks of what Soilmaster Select (charcoal) looks like. Also there is a sticky with some good general information in it in the planted forums as well.
FYI, IMO black or darker substrates really make the colors of your fish and plants pop, and I've heard the fish like it better b/c it is usually closer to their natural habitat (in FW tanks anyway). I always wondered how they know what fish like better, surveys?