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Re: Irradiated gemstones

To: radsafe@romulus.ehs.uiuc.edu
Subject: Re: Irradiated gemstones
From: "Bjorn Cedervall" <bcradsafers@hotmail.com>
Date: Wed, 26 Jan 2000 18:02:55 CET

>>are treated one paragraph read "All Blue Topazes presently in the market 
>>were enhanced by irradiation and heating processes for color addition".
>
Shades/hues of blue can probably be manipulated by heat if the key element 
is either copper or cobalt.

Bjorn Cedervall  bcradsafers@hotmail.com

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