[Rockhounds] Need help with Mineral ID

[Wes Lingerfelt]

Axel,
I used a 35 watt SW lamp on it and it glows medium strong in the pink 
crystal area. A LW lamp does nothing at all. It was handed to me by a young 
couple who inherited it from their grandfather (mineral collector) and they 
have no idea where it came from or how long ago he acquired it. I'm not sure 
I have the equipment to get down into the specimen and isolate a separate 
image of the individual crystals. It would be nice to have had a catalogue 
to refer to but that isn't possible. I still like the presentation it has 
though; It's just lovely I think!
regards,
Wes
----- 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: Tuesday, June 09, 2009 2:43 AM
Subject: RE: [Rockhounds] Need help with Mineral ID


> Wes, what's the locality?
>
> Can we get a detail of the specimen? One full size photo of one of those
> white crystals and a good one of one of the pink crystals.
>
> A good way to find out if it belongs somewhere in the range of calcite to
> rhodochrosite (or kutnohorite) is to check the phosphorescence. If it 's a
> manganese activated carbonate of calcium it will show a red flash if you
> quickly remove the UV lamp.
> Other red fluorescing minerals that are activated by chromium don't do
> that... Aragonite sometimes fluoresces reddish pink but the 
> phosphorescence
> of those appears to be green (to the human eye).
>
> 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 Wes Lingerfelt
>> Verzonden: dinsdag 9 juni 2009 7:17
>> Aan: rockhounds at lists.drizzle.com
>> Onderwerp: [Rockhounds] Need help with Mineral ID
>>
>> http://www.flickr.com/photos/wirewrap/sets/72157619389520369/
>>
>> Does anyone out there recognize this mineral? I think it is Manganoan
> Calcite. It has Pyrite
>> scattered all over it and it Fluoresces deep Raspberry Red under short
> wave UV. Any help will
>> be appreciated.
>> Wes Lingerfelt
>>
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