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polishing white opal?

Hi i have a very nice piece of white opal ( 3cms x 2 cms ) it has lots of purple fire in it, i have used cerium oxide to polish it so its smooth but it has left the surface quite dull - how can I make it shiny ? Thank you.

From Velda - December 05, 2007 at 16:13:58

Message: 65629

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Bob Keller