About Kingsley North, Inc. Since 1939, the expert staff at Kingsley North has the gathered the best lapidary equipment, supplies and accessories for rock-hounds and hobbyists, including rock tumblers, diamond trim saws, faceting equipment, and much more. Kingsley North also carries a full line of jewelry findings, cabochons, cotton filled jewelry boxes and gemstone display cases. Their thorough offering of books and videos help turn the curious beginner into an expert. If your hobby or business involves the art of lapidary, Kingsley North has everything you need. Polishing compound for tumblers. Sub-micron alumina. White in color. Non-staining. Works with both tumbler and vibrating lap. Clean and fast way to polish rocks. Choose 4 oz., 1 lb., or 5 lbs..
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