[Jewelry making - Article 00277] - Re: [Orchid] Tumbago alloy

[jesse brennan]

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    I have found two other sources on this maybe in NZ  libraries too!!. 

    They are not academic monographs but in a popularized form published
    by Time -Life "The Metalsmiths"   (1974) part of the emergence of man
    series  which has the best coverage. 

    "Noble Metals" (1984) part of the planet earth series.    Time -
    Life did an exceptionally well researched and written job with their
     many special book series.   Mesoamericans  apparently alloyed up to
    about 50% copper  with gold.  Native ore would also contain silver
    and they apparently  depletion guilded  out not only the copper but
    also the silver.  Most of the art was melted into ingot and hauled
    to Spain or lost at sea. 

    Libraries may still have them but the may have been removed because
    of low circulation. A major problem in US libraries  today. 

jesse


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