18k APG Accent Purple Gold

Jewelry Discussion
1

There was recent discussion about purple gold. I just ran across the
product “18k APG Accent Purple Gold” sold as small nuggets for
anyone who is interested:

http://tinyurl.com/cp4ex

2

Hi, thanks for the tip, I was in touch with someone of you off line
about purple gold sheet. I know it can’t be manipulated, but I would
like to cut an polish some. Anyone know:

  1. where I can get a small sample, in almost any form, so I can see
    how “purple” purple gold really is?

  2. where I can get sheet/think pieces purple gold?

Thanks! I’ve been looking for a source for this gold for a really
long time

Marianne Hunter
http://www.hunter-studios.com

3

Marianne,

I've been looking for a source for this gold for a really long time

Glad to have been of help. I love your work and hope you’ll share
pictures of your results with us.

Jamie

4 
thanks for the tip, I was in touch with someone of you off line
about purple gold sheet. I know it can't be manipulated, but I
would like to cut an polish some. Anyone know: 

1. where I can get a small sample, in almost any form, so I can
see how "purple" purple gold really is?

It is a beautiful intense purple. Contact Linus Drogs at Au
Enterprises (800) 637-2278 I know they have made and cast some before
and would probably be willing to make you a sample

where I can get sheet/think pieces purple gold?

The only way I have seen it is in cast form, never in sheet. Since
it is more like ceramic then metal in behavior it iis cast to desired
form not made into sheet.

At the upcoming Santa Fe Symposium there is a paper being presented
about some new variations on the purple and blue gold alloys by Dr.
Jorg Fischer-Buhner you can read the abstract at

ABSTRACT:

  The attractive color of blue- and especially purple-gold
  alloys has always intrigued jewelry designers and producers.
  However, the reality of using these colors for jewelry has been
  very limited, mainly due to the inherent brittleness and poor
  corrosion resistance of this special class of gold alloys.
  This paper reports on some improvements in crack resistance
  that can be obtained by certain additions to 14K blue- and 18K
  purple-gold colored alloys. Opportunities to incorporate such
  colors in jewelry design with these modified, colored-gold
  alloys using investment casting (as well as the still existing
  limitations) are discussed. Special attention is given to
  casting technologies that can be adapted to manufacture
  multi-colored jewelry. 

  Dr. Fischer-Buhner holds a Ph.D. in physical metallurgy and
  materials technology. Since October 2007, he has been active
  in research and development with Legor Group Srl, Italy, and
  Indutherm GmbH, Germany. He was formerly head of the Physical
  Metallurgy and Precious Metals Research division of FEM, the
  German Research Institute for Precious Metals Chemistry. He is
  a recipient of the Santa Fe Symposium? Research, Ambassador,
  Outstanding Technical Presentation, Applied Engineering and
  Collaborative Research Awards. This is his eighth year
  presenting at the Symposium.

I am looking forward to hearing it and to see what advances they have
made. It sounds like they have a less brittle alloy but it still is a
casting only alloy.

Also something that gets virtually no coverage here when the subject
comes up. Purple and blue golds are subject to corrosion which also
limits their use.

HTH
Jim
James Binnion
James Binnion Metal Arts