An interesting and showy specimen with a cluster of quartz crystals hanging off the back of this tourmaline! Not only is the tourmaline unusually blue for this locality, but it is of excellent translucency for the size and has a sharpness you do not often see at the CG. Word has it that the mine is now pinching out after just a few years of prospecting. Each pocket, though small, was quite different from the last. It is a shame to see this mine go the way of odler SD localities! That being said, this piece, because it is so unique in aspect, should be a good investment