This is 2.0 pounds of white Tin Oxide powder, at $44.63 per pound, in a 1-quart plastic container. Unfortunately, this is a "Rare Earth Mineral" and is in high demand for high-efficiency...
Cerium Oxide is the #1 choice for polishing both hard rocks and soft rocks. It is pinkish-tan in color and 3-5 microns in size. It is an excellent polish for agates, quartz, quartz crystals,...
Tin Oxide is the #2 choice for tumbling hard and soft rocks. (Cerium Oxide is first) The standard polishing sequence is 2 weeks (continuous) in Cerium Oxide, then 2 weeks...