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Press Release Contact: Robert James International School of Gemology San Antonio TX 78278 Phone 210 877 5816 Fax 210 877 5496 isg@schoolofgemology.com GemstoneTreatmentReport.com website becomes free information resource for gemstone industry. "ISG opens the GTR database to assist the world wi...

Another one to watch out for. I pulled this from another forum I'm on: "They are filling the emeralds with ExCel polymer and offering a lifetime guarantee against change. The Guarantee states: Eternity Natural Emerald's® ExCelT is a stable process for enhancing the clarity of emeralds. Emeralds...

More from Ron's site, that's well worth the read: COUNTING FISSURES TO DETERMINE THE DEGREE OF ENHANCEMENT IN EMERALDS "After counting fissures on hundreds of emeralds, a close relationship (1:1) was found between surface-reaching fissures and the degree of face-up clarity enhancement..." m

Emerald expert Ron Ringsrud, owner of m, says the ongoing debate in the emerald industry about whether or not filling rough and preformed emeralds is causing a major problem, is of little concern in the larger Colombian emerald picture. The practice of filling emeralds before cutting can allow some ...

What happens with all the insurance policies issued on the millions of carats of Asian red andesine jewelry that the labs erroneously verified as natural and untreated, that is now verified as artificially treated beyond a shadow of a doubt, and that consumers have been paying premiums on based on t...

The old ways of observational gemology have had to give way to the more advanced method of experimental gemology , to keep up with new treatments being discovered seemingly one right after the other lately, even in stones we don't expect to be treated. This is a well thought out assessment of what's...

Hi Pink, If you want some just let me know as I go down to the mines every year. They are only 6 hours away, and I have known Don for a few years now. My daughter lives just on the other side of Lakeview, so we go sunstone hunting as a family trip every year in the "free" areas, and then ...

Here's a great article on the Sunstone mines in Oregon, with a submission from our own Marty in it. I thought it was great reading, and now that I've got stones from 2 of the mines, I'm on my way to collecting the whole set. Sunstone Mining in Oregon The amazing odyssey from the stark Oregon high de...

This is extremely important for all interested in the andesine/labradorite debacle brought to light by the ISG last year, and confirmed in this report: Interim Report; 14-Sep-2009 The Red Feldspar Project George R. Rossman, California Institute of Technology "...Is There a Mine in Tibet That Pr...