Article on the heat treatment of spinel

[Michael_E]

The GIA is trying to get people to subscribe to their great periodical, "Gems and Gemology" and have sent out a little teaser e-mail detailing heat treatment of spinel, a new spinel source and some other short goodies which may interest some of you...nice pictures for those not interested in the science end of things. They have a link to this small set of articles online here: GIA - E-Brief

 

[T L]

Oh no, please PLEASE don''t tell me they''ve figured out how to heat treat spinel.

Is there going to be any gemstone that''s going to always be completely free of treatments ???