Comments on: How would a gold and opal necklace have been crefted? http://metalcastingzone.com/blog/2008/12/how-would-a-gold-and-opal-necklace-have-been-crefted-2/ All the Metal Casting News that is Fit to Print Fri, 15 Oct 2010 09:34:57 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: ~*~*~*~ http://metalcastingzone.com/blog/2008/12/how-would-a-gold-and-opal-necklace-have-been-crefted-2/comment-page-1/#comment-604 ~*~*~*~ Fri, 02 Jan 2009 09:33:01 +0000 http://metalcastingzone.com/blog/?p=914#comment-604 I can't tell you a whole lot without having seen it. The bezels may have been cast, or they may have been forged. They could be made out of any metal. But you can't cast metal with opal in it. Opal is quartz with water in it and the opal will be destroyed if it's left under high heat. It also means you don't want to leave your opal necklace in a hot car. Of course, I'm guessing this is a real opal necklace, and not a created opal necklace. There are a couple types of created opals and they vary in quality. I can’t tell you a whole lot without having seen it.

The bezels may have been cast, or they may have been forged. They could be made out of any metal.

But you can’t cast metal with opal in it. Opal is quartz with water in it and the opal will be destroyed if it’s left under high heat. It also means you don’t want to leave your opal necklace in a hot car.

Of course, I’m guessing this is a real opal necklace, and not a created opal necklace. There are a couple types of created opals and they vary in quality.

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