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Compositions: Ceramic > Ceramic Compositions > Synthetic Precious Stones (e.g., Single Crystals, Etc.) Synthetic Precious Stones (e.g., Single Crystals, Etc.)Synthetic Precious Stones (e.g., Single Crystals, Etc.) patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.04/20/06 - 20060084563 - Process of preparation of synthetic fire opal A synthetic fire opal and a process for its preparation. Synthetic fire opals have similar physical and chemical properties as natural fire opals. Synthetic fire opals are colored, hard, and transparent. The process of preparation of synthetic fire opal includes; mixing TEOS with absolute ethanol (99.9%), distilled water, concentrated nitric ... ### FreshPatents.com Support |