Methods for manufacturing luminescent products having long.
Jan 28,2003(US); Gary Leroy Butler,Atlanta,GA.(Us)ATLANTA,GA 30309 (US).(21) Appl.No.: 10/352,480 the luminescent crystals 15 include rough surfaces,they may be coated prior togrinding,cutting,sanding,or otherWise altering the crystalspigments such as calcium carbonate (limestone),talc,clay.Contact Us