[Rockhounds] fossils

[Axel Emmermann]

Hi Gene,

If you find that disturbing.... throw a big party in your house... Put a
sign in you front yard that says FREE BEER. Make that so. Invite all your
friends and everyone else. After a few  hours: kill the lights in your
bathroom, put on a pair of yellow goggles (or look through a yellow
photographic filter) and shine a 385 nm UV light on the floor around your
toilet pot. 
Take a megaphone and yell that you ran out of beer.  Hire cleaning crew to
remove fluorescence on bathroom floor.

Uhr... Axel



> -----Oorspronkelijk bericht-----
> Van: rockhounds-bounces at lists.drizzle.com
[mailto:rockhounds-bounces at lists.drizzle.com]
> Namens Gene Hartstein - Fossilnut.com
> Verzonden: vrijdag 1 mei 2009 3:26
> Aan: Rockhounds at drizzle.com: A mailing list for rock and gem collectors
> Onderwerp: Re: [Rockhounds] fossils
> 
> Clothing and laundry detergents  fluoresce a bright white. Take a lamp
into
> your laundry room with the lights out. The effect is disturbing... white
> everywhere. Laundry detergents contain optical brighteners, synthetic dyes
> that absorb UV light and reemit it as visible white light... making
laundry
> appear whiter than white. I used to work where they were synthesized
> Gene Hartstein
> ----- Original Message -----
> From: <betdav97 at aol.com>
> To: <rockhounds at lists.drizzle.com>
> Sent: Wednesday, April 29, 2009 1:36 PM
> Subject: Re: [Rockhounds] fossils
> 
> 
> > My wife has a pair of tennis shoes that fluoresce two colors, some day
> > I will add them to the UV display
> >
> >
> > -----Original Message-----
> > From: Axel Emmermann <axel.emmermann at pandora.be>
> > To: 'Rockhounds at drizzle.com: A mailing list for rock and gem collectors'
> > <rockhounds at lists.drizzle.com>
> > Sent: Wed, 29 Apr 2009 1:27 pm
> > Subject: RE: [Rockhounds] fossils
> >
> >
> >
> > Really Kreigh... you should stick EVERYTHING under the UV-lamp.
> > You never know what may fluoresce...
> > I had a friend who had a argument with his wife because he wanted to
test
> > her for fluorescence... May sound weird but yes, us fanatics are out
there
> > ;-)))
> >
> > Axel
> >
> >> -----Oorspronkelijk bericht-----
> >> Van: rockhounds-bounces at lists.drizzle.com
> > [mailto:rockhounds-bounces at lists.drizzle.com]
> >> Namens Kreigh Tomaszewski
> >> Verzonden: woensdag 29 april 2009 1:47
> >> Aan: Rockhounds at drizzle.com: A mailing list for rock and gem collectors
> >> Onderwerp: Re: [Rockhounds] fossils
> >>
> >> Interesting. I never thought of sticking my belimnites under a black
> >> light. They were a bright yellow. Chalcedony, collected at Pierre, SD.
> >>
> >> Kreigh
> >>
> >>
> >> On Tuesday, Apr 28, 2009, at 12:45 America/Detroit, Earl R. Verbeek
> >> wrote:
> >>
> >> >
> >> > Axel,
> >> > ? I noticed your belimnites are chalcedony. Ours on this side of the
> >> > Atlantic are the same color, but aragonite. You would have thought
> >> > your chalcedony ones would be green, since many chaledony items
> >> > fluoresce green here.
> >> > dave
> >> >
> >> > Hi Dave and Axel,
> >> >
> >> > "Our" chalcedonies often fluoresce green due to trace amounts of
> >> > uranyl ion.
> >> > This is particularly common in the desert Southwest, where volcanic
> >> > rocks
> >> > abound.  Uranium is strongly partitioned in silicic magmas and hence
is
> >> > concentrated in dacites and rhyolites, from which it is readily
> >> > leached into
> >> > the groundwater system and incorporated into chalcedony vein fillings
> >> > and
> >> > "chalcedony roses" in large vesicles.  You'll see the same response,
> >> > for the
> >> > same reasons, in much petrified wood.  In wood, however, there are
also
> >> > remnant organic molecules that often cause pale yellow to orange
> >> > fluorescence, and in places you'll find this combined with the uranyl
> >> > green.
> >> > I've seen many samples of chalcedony that fluoresce yellow, similar
to
> >> > Axel's belemnites.
> >> >
> >> >              Cheers-    Earl
> >> >
> >> > PS:  This note has been stuck in the queue for some time now, and
I've
> >>
> > > no
> >> > idea when it will be sent.  Had that same problem yesterday, too.
> >> > Apologies
> >> > if this is "old news" by the time it's posted....
> >> >
> >> >
> >> > --
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