This Lot is for 500 Grams of Cerium Oxide is for Polishing Tumble Stones in either a Tumbler or a Vibrasonic Tumbler. I use four Teaspoons per 3 lb barrel and tumble for a week. After Polishing with Cerium Oxide make sure that the stones are washed in warm water with a little washing up Liquid and you will find that your stones will shine once dry.
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