Is it simulated or natural
2006-12-17 14:18:01 · 3 answers · asked by Stacye S 3 in Science & Mathematics ➔ Earth Sciences & Geology
Topaz is a natural stone however the London Blue colour is created by exposing colourless material to very intense radiation from an electron accelerator or in a nuclear reactor at rates of up to 40,000 Mrad. In early stones there was a problem with with residual radioactivity but this has been overcome by the use of very pure colourless material which does not contain the trace elements that caused the trouble.
Another stone on the market is "Mystic Topaz" which is natural topaz that has been surface coated with metal oxides to produce a shimmering rainbow effect as you move it about (like the coating put on lenses) It is not very resistant to ware and soon gets scratched and worn making it look very tatty.
2006-12-17 21:17:17 · answer #1 · answered by U.K.Export 6 · 2⤊ 0⤋
Blue Topaz is a type of gem stone. I am not aware of a simulation because the stone is not that expensive. A London Blue is a deep blue and given that name to charge a little more for a nice stone.Most stones are treated in some way to enhance their color
2006-12-17 22:21:46 · answer #2 · answered by sweetpicker 4 · 0⤊ 0⤋
I don't know, but it sounds beautiful.
2006-12-17 22:25:09 · answer #3 · answered by Anonymous · 0⤊ 1⤋