View single post by mcwright
 Posted: Sun Nov 8th, 2009 01:28 pm
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mcwright



Joined: Wed Sep 28th, 2005
Location: SCOTTSDALE, AZ
Posts: 4759
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 Tony Duronio wrote:
Looks good Greg...like the green. Not really sure what the heck a Flame-fusion crystal is:D but from all the pic's and on mine, legiblity is crystal...no pun intended, clear. Enjoy..fun watch for sureperfect.gif

The Verneuil process, also called flame fusion, was the first commercially successful method of manufacturing synthetic gemstones, developed in 1902 by the French chemist Auguste Verneuil. It is primarily used to produce the ruby and sapphire varieties of corundum, as well as the diamond simulants rutile and strontium titanate. The principle of the process involves melting a finely powdered substance using an oxyhydrogen flame, and crystallising the melted droplets into a boule. The process is considered to be the founding step of modern industrial crystal growth technology, and remains in wide use to this day.