Marbles

Sorry about having to photograph these on a platter, I don't have a level surface in my old, old house, so had to place the marbles on a platter. The single dark marble near the center is a fired clay marble, the 4 next to it I found in my yard when I was digging in my garden. All of the others were given to me by various friends that know I like shiny things. If anyone has specific info on any particular special marble that you see in the pic, please let me know as I know NOTHING about marbles except that I may have lost mine a while ago.