Link This |
Email this |
Blog This |
Comments (36)
We interrupt our Tucson blog .... Part II
February 11, 2008
We interrupt our Tucson blog .... Part II
Well, Jewelry Television's "Jewel Hunter Jack" has gone and found an Andesine mine in
Mongolia. And Jack found one other thing: Andesine starts out as near colorless feldspar, and is then heat treated.
It turns out that all of that red-orange and green andesine we've been seeing over the past few years is the result of heat treatment. Of course, no supplier up to this point has said anything about any enhancement, so the lack of enhancement disclosure is back in the lime light
here.
Jerry Sisk, co-founder of JTV, is rightfully proud to have found the Mongolian source, and to have also discovered that the stones have been heated. But because they had sold so much of it without knowing the source or the enhancement, he now is explaining to viewers and customers that, "heat treatment is a standard industry process that's been accepted for hundreds of years."
One of the key topics here in Tucson this year has been
Fair Trade Gems. This requires that you know your source, and know the integrity of the stone -
before you sell it.
Well, I hate to use the old cliche, but this is just the tip of the iceberg. Tomorrow I will be hunting down the rumor that andesine is not only heated, but that it's heated for 30 days, tumbled, and then diffusion treated with copper.
Whether or not the rumor is true, all of this just reinforces the efforts for those promoting Fair Trade Gems.
Posted by Gary Roskin on February 11, 2008 | Comments (36)