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
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
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.
James Binnion Metal Arts