[Jewelry making - Article 00182] - Re: [Orchid] Collecting gold with mercury

[tomy joseph]

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    In kerala India. goldsmiths still using mercury for recovering lost
    gold while doing fileing and engraving. they collect all the dust and
    put some water so that the collected dust will not fly off and they
    add mercury and mix it thoughrouly and meit this amalgamon using the
    traditional black clay cup. when it is melt the mercury vaporises and
    the gold dust melt together in the form of ingot./ usally people
    bring gold ornaments to jewelery shop complainig that the 22 ct gold
    which they bought got white i some part and they doubt some kind of
    cheating from the part of retailer. when examine the ornament we can
    find out it is mercury when we ask them are you recently
    hospitalised? the answer is no but yes they went hospital for a
    checkup. / we then release this mercury by heatig slowly and then
    repolish it if it is in very small quntity we use herbal treat that
    is Bettal leaf which used by all Indian states pepple chew it with
    little calcim carbonate and arec nut and spitting blood red colored
    saliva. 

Thank you
Tomy jseph
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