[Jewelry making - Article 00345] - Re: [Orchid] Pre Columbian casting methods

[ElegantBee]

========[ Invite a Friend - http://www.ganoksin.com/invite.htm  ]========


    Hi All:  Being privileged to know a couple who have spent their
    lives studying, photographing and restoring PreColombian Art, I
    asked them about technoques for casting gold.  Here is  their brief
    response.It came with a promise to provide  more detailed 
    information if we would find it useful. 

    The Precolombians were amazing as to the alloys they created, the
    washing of metal mixtures to raise the gold content to the surface,
    the ability to do lost wax casting of fine filligree, etc. etc. 

    They usually they made a wax model, covered it with a mixture of
    clay and ash, the mixture depending on how fine a mold they wished
    to obtain, (and they are all over the map in quality), inserted the
    channels to pour in the molten gold and then when they broke the
    mold and finished off the joining lines (if there were any) ,and the
    chaplets (where the pouring channels joined the surface), did hand
    touchup, acid baths, etc. and final polishing. They also did
    repoussee  and soldering. You name it, they did it! They were
    extremely sophisiticated. 

    If you would like to see some wonderful PreColumbian vases and pots,
    see www.mayavase.com and also for an article about the Kerrs and
    their invention of the  Rollout Camera, see
    http://www.tomgidwitz.com/main/perfect.htm 

Hope you find this helpful.  Sandra


____________________________________________________________________
T h e   O r c h i d   L i s t
Open Electronic Forum for Jewelry Manufacturing Methods and Procedures
____________________________________________________________________
Orchid FAQ:
~ http://www.ganoksin.com/orchid/faq.htm
Orchid Archives:
~ http://www.ganoksin.com/orchid/archive
Orchid Galleries:
~ http://www.ganoksin.com/orchid/gallery.htm
Invite a Friend:
~ http://www.ganoksin.com/invite.htm
____________________________________________________________________
Tips From The Jeweler's Bench - Article Archive
~ http://www.ganoksin.com/borisat/tip_sear.htm
The Jeweler's Selected Bibliography List
~ http://www.ganoksin.com/jewelry-books
Buy Orchid Jewelry:
~ http://www.ganoksin.com/shop
____________________________________________________________________
-Unsubscribe:
-Email: orchid-request AT ganoksin.com Body=unsubscribe subject=blank
____________________________________________________________________