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Dany Mabillard
Joined: 01 Jul 2019
Posts: 352
Location: Valais
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 Posted: Apr 10, 2023 04:00 Post subject: Search for the locality |
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If someone could help me. I've bought it in an live auction and could be an old specimen.
| Mineral: | Fluorite and Calcite and Pyrite |
| Dimensions: | 170 mm x 110 mm x 70 mm |
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11292 Time(s) |
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| Mineral: | Fluorite and Calcite and Pyrite |
| Dimensions: | 170 mm x 110 mm x 70 mm |
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11317 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4235
Location: Germany
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| Posted: Apr 10, 2023 06:16 Post subject: Re: Search for the locality |
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| 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
Site Admin
Joined: 29 Dec 2008
Posts: 842
Location: Northeast Ohio
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| Posted: Apr 10, 2023 08:08 Post subject: Re: Search for the locality |
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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?
_________________
Collecting and studying crystals with interesting habits, twinning, and epitaxy |
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Dany Mabillard
Joined: 01 Jul 2019
Posts: 352
Location: Valais
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| Posted: Apr 10, 2023 08:59 Post subject: Re: Search for the locality |
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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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11183 Time(s) |
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11219 Time(s) |
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11190 Time(s) |
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11184 Time(s) |
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Matt_Zukowski
Site Admin
Joined: 10 Apr 2009
Posts: 737
Location: Alaska
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| Posted: Apr 10, 2023 21:40 Post subject: Re: Search for the locality |
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| Are the fluorites simple cubes or do they express any modifications?
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4235
Location: Germany
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| Posted: Apr 13, 2023 02:10 Post subject: Re: Search for the locality |
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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
Joined: 01 Jul 2019
Posts: 352
Location: Valais
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| Posted: Apr 13, 2023 14:07 Post subject: Re: Search for the locality |
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| 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
Joined: 01 Jul 2019
Posts: 352
Location: Valais
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| Posted: Apr 13, 2023 14:29 Post subject: Re: Search for the locality |
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| 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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