Some advice on Opal please.
(The MI6 building in Vauxhall in London. I miss the Vauxhall Opel)
Amanda the editor and Marilyn her deputy, are discussing opal. Marilyn has opal in her ring, and Amanda said - oh, you'll have to make sure that doesn't get wet. And Marilyn said that a relative of hers (from Australia) said opal needed to be watered.
Who is right please?
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