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    A small Canadian companys new way of extracting gold and other precious metals is showing big promise for the mining industry, and for efforts to deal with the ...

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  • The History of Dentistry Namibian Dental Association

    Forceps and the 'Pelican' were the most common extracting tools. The dental pelican, invented in the 14th century by Guy de Chauliac was often made by the village ...

  • Extracting Gold HowStuffWorks

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    Gold is the most malleable of all metals; a single gram can be beaten into a sheet of 1 square meter, and an avoirdupois ounce into 300 square feet.

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  • » Characteristics of Gold

    Gold is extremely ductile-meaning that it can be drawn out into wire or threadlike forms without becoming brittle and breaking. It is said that gold can be drawn out ...

  • Deep sea mining Wikipedia

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