[Jewelry making - Article 00910] - Re: [Orchid] Opal care

[Kathy Johnson]

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>         Kathy, Opals should not be stored in oil of any kind. The
>     stone being porous, they absorb oil and that depletes
>     play-of-color. The oil bearing layer can be ground off in the case
>     of rough. 

    Dad's had some of these opals stored in mineral oil for probably 25
    to 30 years. But now that I think about it, the liquid in those jars
    *might* be glycerin. I'll have to ask him. If it's mineral oil, I'm
    sure it's too late to salvage them. 

--Kathy Johnson
Feathered Gems Jewelry
http://www.featheredgems.com

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