Your question regarding gems and jewelry containing radioactive
material is a very good one. I can only respond to my
experience regading London Blue Topaz. Yes, After treatment
London Blue Topaz can does retain some level of radioactivity.
Particularly topaz that is treated abroad.
Our topaz is treated at the UNIVERSITY OF MISSOURI as is the
majority of the topaz that is treated in the U.S. Some of our
parcels remain at the UNIVERISTY OF MISSOURI for up to 5 years.
Why so long? Before a parcel is released it must be CLEAN, that
is to say it must meet the lowest level of radioactivity.
(unfortunately, I don’t know what that level of requirement is.)
Perhaps a scientist,chemist or an expert in this field can share
the answer with us.
We have been distributing London Blue Topaz to the industry for
over 10 years. So far we have not had any complaints relating
Hope this helps!
Ann Sandler-Bragg V.P.
World Wide Imports
Divn. of Imex International
9974 Scripps Ranch Blvd. Suite 295
San Diego, Ca 92131
Phone & Fax: 619-271-7667