Natural Pure Iron Pyrite - Crushed Inlay Stone (fine, medium, or coarse - .5 oz, 2 oz, 1/2 lb) Great for woodworking, jewelry and more. MyWorldOfWood. 5 out of 5 stars. (859) $7.00. Bestseller. Add to Favorites. Malachite - Crushed Medium Gemstone Sand. Great for Art, Jewelry, Wood Inlay and Metaphysical uses.