Alloy for 24K microalloy

Jewelry Discussion
1

Hello, Does anyone know what metal(s) are being used by the PureGold
company to make their hardenable 24K gold microalloy? Thanks, Steve
Midgett

2 
     Hello, Does anyone know what metal(s) are being used by the
PureGold company to make their hardenable 24K gold microalloy?
Thanks, Steve Midgett

Hi Steve, I have used that microalloy and asked Anne Hollerbach
that same question, she thought it was calcium. I did take a chance
and heat harden it in my kitchen oven and it appears to have worked.
Betty

3

Hi Steve, I use the PureGold 24k microalloy, mostly in 28g to weave
with. Its terrific stuff and can be age hardened to a Vickers of
about 170 (hardness of 18k).

John Bernardin of PureGold told me the alloy is a rare earth
element-gadolinium. It is alloyed in a fractional amount and you
may still legally stamp it 24k. He is a really friendly and
knowledgeable guy and Im sure will tell you more about it. His
number, 510-262-9560.

tlee

4

Steve I asked the folks promoting it at SNAG in Denver. They were
reluctant to disclose the full metallurgy, but admitted to a small
amount of calcium, so small that the total purity is still within
the US limits for 24K. I have a vague, unsure recollection of
another unusual metal as well, perhaps gallium - but probably
getting it mixed up with the no tarnish silver.

My guess is that they would patent this metal, so a search of the
patent archives should find the full art.

Marlin, in cold Denver who remembers the wonderful workshop you gave
for COMA