... used in various industries for fine grinding and polishing synthetic abrasive diamond micron powders is widely used in ... industries for fine grinding and polishing, such as diamond polishing, synthetic crystals, computer chip, CD, optic lens, sealing parts, ... dies, metallographic specimens, rubies, sapphires, emeralds & jades, stones, gems & jewels, various gages, glass etc. Pike Brand Micron Powder ...