Re: Irradiated gemstones

["J.J. Rozental" <rozental@unisys.com.br>]

To Radsafers interested (and can understand Portuguese) look at
http://www.alternex.com.br/~aben/brn-a3n12-mar97/aplicaca.htm
To countries following the recommendations of the IAEA Basic Safety
Standards, Safety Series 115, 1996, irradiated gemstones is not a justified
practice:
2.22 (b) - page 22 - frivolous use of radiation or radioactive substances in
commodities or products such as toys and personal jewellery or adornments.

Jose Julio Rozental
rozental@unisys.com.br

Rio de Janeiro, Brazil



----- Original Message -----
From: Moroney, Roger W <Roger.Moroney@mkg.com>
To: Multiple recipients of list <radsafe@romulus.ehs.uiuc.edu>
Sent: Wednesday, January 26, 2000 4:14 PM
Subject: RE: Irradiated gemstones


> 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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