RE: Irradiated gemstones

["Moroney, Roger W" <Roger.Moroney@mkg.com>]

The research reactor at Univ of Missouri in Columbia still does it. Check
out http://web.missouri.edu/~murrwww/stones.html for gemstone information or
http://web.missouri.edu/~murrwww/ for general reactor stuff.

Roger Moroney
Health Physicist
Mallinckrodt, Inc.
314.654.7457 voice
314.654.7571 fax
roger.moroney@mkg.com


-----Original Message-----
From: Lamothe, Emelie [mailto:lamothee@AECL.CA]
Sent: Wednesday, January 26, 2000 10:59 AM
To: Multiple recipients of list
Subject: RE: Irradiated gemstones


I don't know about "all" blue topazes but I do know that AECL no longer does
this.  AECL did irradiate an awful lot of raw topazes during the mid- to
late-80's.  I have no clue as to who, if any one, does now.

Emelie Lamothe
lamothee@aecl.ca
> ----------
> From: 	Franz Schoenhofer[SMTP:schoenho@via.at]
> Reply To: 	radsafe@romulus.ehs.uiuc.edu
> Sent: 	Wednesday January 26, 2000 11:51 AM
> To: 	Multiple recipients of list
> Subject: 	Irradiated gemstones
> 
	[snip]

	 Among the description how different gem stones
> are treated one paragraph read "All Blue Topazes presently in the market
> were enhanced by irradiation and heating processes for color addition". 
> 
> Can this be confirmed?
> 
> Franz
> 
> 
> Franz Schoenhofer
> Habicherg. 31/7
> A-1160 Vienna
> Austria
> Tel.: +43-1-495 53 08
> Fax.: same number
> mobile phone: +43-664-338 0 333
> e-mail: schoenho@via.at
> 
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