[Rockhounds] Fl. marbles

[Axel Emmermann]

Yes, uranium salts were used to color glass yellow. Plenty of uranium was
available in Cornwall and Bohemia. Both are known for their production of
Vaseline glass.


Axel Emmermann
European Regional Vice President of the
Fluorescent Mineral Society
<http://www.uvminerals.org/>
=========================
Mineralogische Kring Antwerpen/Antwerp Mineralogical Society
<http://www.minerant.org/index.html>
Werkgroepleider/Workgroup leader: Fluorescerende mineralen/Fluorescent
minerals
Technische Realisaties/Engineering
My website:<http://users.pandora.be/axel.emmerman/home/>


> -----Oorspronkelijk bericht-----
> Van: rockhounds-bounces at lists.drizzle.com
[mailto:rockhounds-bounces at lists.drizzle.com]
> Namens pmodreski at aol.com
> Verzonden: donderdag 30 april 2009 18:19
> Aan: rockhounds at lists.drizzle.com
> Onderwerp: Re: [Rockhounds] Fl. marbles
> 
> That suggestion isn't really all that helpful, Dave, because as is well
known, most of?us long-
> time rockhounds have already lost all their marbles.? Maybe some of the
newer ones will still
> have some, though.
> 
> 
> 
> -----Original Message-----
> From: betdav97 at aol.com
> To: rockhounds at lists.drizzle.com
> Sent: Thu, 30 Apr 2009 8:36 am
> Subject: [Rockhounds] Fl. marbles
> 
> 
> 
> Since we are on the topic of fluorescence, try some of your old
> marbles, a lot will flouresce quite nicely due to the uranium salts
> that were used to color them; some are still warm under a geiger
> counter also.
> dave
> 
> 
> 
> 
> 
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