[Jewelry making - Article 00036] - Re: [Orchid] Contaminated silver powder

[John Burgess]

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>    Hello: I have some silver powder that is contaminated with stone
>    (came from mortar and pestle, marble or something similiar). Can
>    anyone tell me how to clean the silver powder? Any help will be
>    appreciated. 

    G'day;If what you have with your silver dust is really marble or
    natural chalk, then almost any acid other than nitric will dissolve
    the marble and leave the silver alone.   Nitric acid will dissolve
    the silver too. 

-- 
Cheers for now,
John Burgess;   johnb AT ts.co.nz of Mapua, Nelson NZ



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