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Dany Mabillard




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PostPosted: Apr 10, 2023 04:00    Post subject: Search for the locality  

If someone could help me. I've bought it in an live auction and could be an old specimen.


Fluorite - Calcite - Pyrite no 200 -FMF.JPG
 Mineral: Fluorite and Calcite and Pyrite
 Dimensions: 170 mm x 110 mm x 70 mm
 Description:
 Viewed:  1776 Time(s)

Fluorite - Calcite - Pyrite no 200 -FMF.JPG



Fluorite - Calcite - Pyrite no 200 -FMF - 2.JPG
 Mineral: Fluorite and Calcite and Pyrite
 Dimensions: 170 mm x 110 mm x 70 mm
 Description:
 Viewed:  1772 Time(s)

Fluorite - Calcite - Pyrite no 200 -FMF - 2.JPG


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Tobi
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PostPosted: Apr 10, 2023 06:16    Post subject: Re: Search for the locality  

Dany Mabillard wrote:
If someone could help me. I've bought it in an live auction and could be an old specimen.
Hi Dany, I remember you asked before ( https://www.mineral-forum.com/message-board/viewtopic.php?t=6714 ) and I feel sorry that no one could help so far.

I also have no idea, or let's say far too many ideas where it could be from. Germany (maybe Saxony or Black Forest or Harz Mountains), Spain (Asturias), France, England, U.S. (Illinois) and for sure several other countries, each which several localities that could be possible. I think I have even seen similar pieces from Cavnic/Romania. Not to forget China with its endless fluorite occurences. And maybe a dozen other countries I forgot :-(

Can you show us a photo of the matrix?

And are you sure the sulfide material is pyrite, not maybe chalcopyrite or marcasite?

Was there any hint when it was collected or when the collection where it was part of was assembled?
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Pete Richards
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PostPosted: Apr 10, 2023 08:08    Post subject: Re: Search for the locality  

What is the orange mineral? I'm guessing it is siderite or ferroan dolomite. This is not something I associate with fluorite, at least from common Illinois localties. Knowing what it is might help shorten the list of possible localities.

Maybe it is sphalerite?

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Collecting and studying crystals with interesting habits, twinning, and epitaxy
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Dany Mabillard




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PostPosted: Apr 10, 2023 08:59    Post subject: Re: Search for the locality  

Here are more photos. I bought it an auction which was selling minerals from some collectors. The large majority of the specimens were correctly labeled and confirmed by the expert but some not like 2 or 3 I bought.


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 Description:
 Viewed:  1682 Time(s)

DSCN9101.JPG



DSCN9109.JPG
 Description:
 Viewed:  1686 Time(s)

DSCN9109.JPG



DSCN9110.JPG
 Description:
 Viewed:  1690 Time(s)

DSCN9110.JPG



DSCN9116.JPG
 Description:
 Viewed:  1683 Time(s)

DSCN9116.JPG


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Matt_Zukowski
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PostPosted: Apr 10, 2023 21:40    Post subject: Re: Search for the locality  

Are the fluorites simple cubes or do they express any modifications?
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Tobi
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PostPosted: Apr 13, 2023 02:10    Post subject: Re: Search for the locality  

Hi Dany,

This piece is really a mystery, a paragenesis of common minerals with a look that you would actually consider to be distinctive, but no one knows ...

I asked some other fellow collectors and they also had no idea though they are really competent mineral people. But one of them asked a fluorite collector he knows and he gave the hint that the piece could maybe be from Lavrion/Greece.

I have no knowledge about minerals from Greece so I don't know if this is possible. Just wanted to mention it, maybe a hint that can help ...?

Regards
Tobi
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Dany Mabillard




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PostPosted: Apr 13, 2023 14:07    Post subject: Re: Search for the locality  

Matt_Zukowski wrote:
Are the fluorites simple cubes or do they express any modifications?


Hello Matt,

they are simple cubes and each cube as a face covered with Calcite (or maybe Dolomite) like we find in some Fluorites from Moscona mine.
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Dany Mabillard




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PostPosted: Apr 13, 2023 14:29    Post subject: Re: Search for the locality  

Tobi wrote:
Hi Dany,

This piece is really a mystery, a paragenesis of common minerals with a look that you would actually consider to be distinctive, but no one knows ...

I asked some other fellow collectors and they also had no idea though they are really competent mineral people. But one of them asked a fluorite collector he knows and he gave the hint that the piece could maybe be from Lavrion/Greece.

I have no knowledge about minerals from Greece so I don't know if this is possible. Just wanted to mention it, maybe a hint that can help ...?

Regards
Tobi


Thank you Tobi,

I've tried to search Fluorite from Greece but without success. I've look at hundred of photos but without success. Mystery, mystery.
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