One pound of assorted rough chips and broken slab pieces of agate, jasper and more to use for tumbling. You may find samples of many materials found listed under the category Rough for Cabbing, such as bloodstone, Bruneau jasper, Montana agate, green moss agate, mook jasper, tigeriron, turritella agate, Graveyard Point plume, rhodonite, Brazil agate, palm wood, green tree agate, aventurine and much more in your one pound package of gemstone tumbling material. These are all good quality stones. The rough size chips and broken slab pieces will be from 1/2" on up. Remember when tumbling, if any of your tumbling chips break along a fracture line, do not add those pieces to the next grit stage, but save them to be tumbled again in the next course grit 60/90 or 80 grit batch of stones. Broken or rough edges will scratch the smoother stones. See more tumbling tips for rotary tumbling or vibratory tumbling.