[Rockhounds] Telling the UV from the Lamppost.

[Axel Emmermann]

Or fluorescent hyalite....

Go check the ruby in the local disco???
If they have blacklights...

Axel



> -----Oorspronkelijk bericht-----
> Van: rockhounds-bounces at lists.drizzle.com
[mailto:rockhounds-bounces at lists.drizzle.com]
> Namens Nathan Martin
> Verzonden: woensdag 13 mei 2009 22:32
> Aan: Rockhounds at drizzle.com: A mailing list for rock and gem collectors
> Onderwerp: Re: [Rockhounds] Telling the UV from the Lamppost.
> 
> but if it doesn't fluoresce you may simply have a non-fluorescent ruby
> 
> On Wed, May 13, 2009 at 2:55 PM, Axel Emmermann
> <axel.emmermann at pandora.be>wrote:
> 
> > Or try a ruby. If it fluoresces you have a LW lamp.
> >
> > Cheers
> >
> > 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.telenet.be/axel.emmerman/FiatLux/Index.php
> >
> >
> >
> > > -----Oorspronkelijk bericht-----
> > > Van: rockhounds-bounces at lists.drizzle.com
> > [mailto:rockhounds-bounces at lists.drizzle.com]
> > > Namens pmodreski at aol.com
> > > Verzonden: woensdag 13 mei 2009 17:33
> > > Aan: rockhounds at lists.drizzle.com
> > > Onderwerp: Re: [Rockhounds] Telling the UV from the Lamppost.
> >  >
> > > Also, John, empirically,
> > >
> > > Try it on any specimen of agate or chalcedony or hyalite opal that you
> > know fluoresces bright
> > > green.? If it fluoresces well with this lamp, then you know it is a
> > shortwave lamp.? If you see
> > > pretty much no fluorescence, it is a LW lamp.
> > >
> > > Pete
> > >
> > >
> > > -----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, 13 May 2009 1:21 am
> > > Subject: RE: [Rockhounds] Telling the UV from the Lamppost.
> > >
> > >
> > >
> > > Look at the bulb:
> > >
> > > If it's dark blue, near black, then you have a long wave light. 366 or
> > 368
> > > nm
> > >
> > > If it's white when off and very pale blue when on you may have  a
> > blacklight
> > > blue (which needs a filter to filter out the visible light (350 or 366
> > nm)
> > > OR a mid-range UV lamp (312 or 320 nm).
> > >
> > > If the bulb is water clear, you have a short wave lamp. That one also
> > needs
> > > a filter to block visible light. 253.7 nm.
> > >
> > > Was this helpful?
> > >
> > > 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.telenet.be/axel.emmerman/FiatLux/Index.php
> > >
> > >
> > >
> > > > -----Oorspronkelijk bericht-----
> > > > Van: rockhounds-bounces at lists.drizzle.com
> > > [mailto:rockhounds-bounces at lists.drizzle.com]
> > > > Namens jb
> > > > Verzonden: woensdag 13 mei 2009 6:48
> > > > Aan: Rockhounds at drizzle.com: A mailing list for rock and gem
> > collectors
> > > > Onderwerp: [Rockhounds] Telling the UV from the Lamppost.
> > > >
> > > > I know that this is not a stupid question, because that is the one
you
> > > > don't ask, so...
> > > >
> > > > I have a UV light with no markings.
> > > > The tube itself has no markings.
> > > > I have no immediate access to reference material that may be of any
> > > > help. So...
> > > >
> > > > What is the best way to determine what frequency the lamp is?
> > > >
> > > >
> > > >
> > > > john
> > > >
> > > > --
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