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Visit us when you're in downtown LA
510 W 6th
St.
Suite 728
Los
Angeles, CA 90014
Our
website is still under construction. If you have any questions please
call us at (213)239 6767 or email us at sales@andegem.com
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*Note regarding the Andesine Issue*
The old information on the Andesine were based on AGTA/GTC
certificates we have at the time of the posting of this webpage.
We are currently working with US
Laboratories and US Universities to find out more details regarding
this stone.
Any more information will be posted as soon as they are available.
Any questions on this matter please email us at
sales@andegem.com.
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Andesine Update:
After months of waiting for the AGTA to respond to the Andesine
issue, the AGTA finally issued their official stand regarding this
controversy. In an email that we received from the AGTA on May
13, 2009, the following message were released:
AGTA Suggests Andesine Disclosure
Since its inception, the American Gem Trade Association (AGTA) has
required that its members disclose all known gemstone treatments at
the time of consignment or sale. With this in mind, the AGTA’s
Industry Rules Committee recently prepared a statement concerning
the proper disclosure nomenclature for andesine. The statement was
approved by the AGTA Board of Directors in their April 13th meeting.
For many months there has been an industry-wide debate on the
treatment of red feldspars in the andesine / labradorite varieties.
There has been significant research done on this material and there
is general agreement within the scientific community that a great
deal of this material is treated.
What is also clear, from the body of research that has been done, is
that there is currently no reliable methodology to prove treatment
or to separate treated from certain natural red-colored material.
Current research is underway to detect the differences in the
treated and untreated material.
With consumer and buyer protection in mind, the AGTA will now
require its members who sell or consign any red andesine-labradorite
to disclose it as diffused material, and indicate this either in
plain language or by use of the industry accepted code, “U”, for
diffusion*. If it can be determined that the material is natural, as
in the case of particular Oregon material; then it may be disclosed
as untreated.
*Codes must appear in a column next to all gemstone descriptions,
with a noticeable reference or label, at the bottom or back of
invoices and memorandums. Codes and type of treatments must only be
used as directed in the Gemstone Information Manual (GIM), 8th
Edition, available from the AGTA.
For further information, please contact the AGTA at 800-972-1162 or
by email at info@agta.org.
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