We slab a lot of rock, and that results in lots of small pieces, just perfect for tumbling. We offer these 8 oz. tumbling mix bags for $3.00, minimum of two bags per order. Included will be the scraps from all of the slabs plus small pieces we have picked up on the hunt. We are offering here at MinersGallery.com from petrified wood, Jaspers, Chrysocolla, agates, Fluorite and more.