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Dany Mabillard
Joined: 01 Jul 2019
Posts: 317
Location: Valais
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Posted: Oct 27, 2019 09:04 Post subject: Re: Help needed for locations |
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Hello everybody,
Could someone confirm the location of this specimen ?
Thank you in advance.
Mineral: | Fluorite and Baryte |
Locality: | Teufelsgrund Mine, Belchen, Münstertal, Breisgau-Hochschwarzwald District, Freiburg, Baden-Württemberg, Germany | |
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Dimensions: | 90 mm x 60 mm x 40 mm |
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8253 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4106
Location: Germany
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Posted: Oct 28, 2019 02:34 Post subject: Re: Help needed for locations |
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Dany Mabillard wrote: | Hello everybody,
Could someone confirm the location of this specimen ?
Thank you in advance. | Hi Dany, the combination of fluorite in pale shades of green or blue or purple with baryte is common in several Black Forest localities. So I can't tell you for sure if this specimen is from Grube Teufelsgrund, but it could be ...
Regards
Tobi
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Dany Mabillard
Joined: 01 Jul 2019
Posts: 317
Location: Valais
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Posted: Oct 28, 2019 12:04 Post subject: Re: Help needed for locations |
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Tobi wrote: | Dany Mabillard wrote: | Hello everybody,
Could someone confirm the location of this specimen ?
Thank you in advance. | Hi Dany, the combination of fluorite in pale shades of green or blue or purple with baryte is common in several Black Forest localities. So I can't tell you for sure if this specimen is from Grube Teufelsgrund, but it could be ...
Regards
Tobi |
Thank you Tobi for the information.
Have a nice evening.
Dany.
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Dany Mabillard
Joined: 01 Jul 2019
Posts: 317
Location: Valais
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Posted: Jan 02, 2020 09:16 Post subject: Re: Help needed for locations |
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Hello everyone !
Could someone help me to find or confirm the location of these two minerals ?
The first one was sold as a Brazilian one.
The second one as an American or Mexican one.
Thank you in advance.
Mineral: | Quartz (variety amethyst) |
Dimensions: | 100 mm x 60 mm x 50 mm |
Description: |
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7856 Time(s) |
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Mineral: | Calcite |
Dimensions: | 50 mm x 40 mm x 40 mm |
Description: |
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7879 Time(s) |
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Dany Mabillard
Joined: 01 Jul 2019
Posts: 317
Location: Valais
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Posted: Jun 05, 2020 11:24 Post subject: Re: Help needed for locations |
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Hello everybody,
Is it possible that this gypsum is from Niccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy ?
Thank you in advance.
Nice week-end to all and keep safe.
Mineral: | Gypsum |
Dimensions: | 190 mm x 150 mm x 90 mm |
Description: |
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6402 Time(s) |
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1345
Location: Cambridge
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Posted: Jun 05, 2020 14:00 Post subject: Re: Help needed for locations |
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They could be from almost anywhere. Sorry
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Sante Celiberti
Joined: 04 Oct 2019
Posts: 699
Location: Tuscany
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Posted: Jun 05, 2020 14:52 Post subject: Re: Help needed for locations |
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Hi, Dany. How are you?
Are you at least sure that your gypsum is from Tuscany?
If so, the habit and size of your crystal are compatible with Niccioleta mine. Traces of pyrite could confirm the locality.
Another nearby locality that produced big crystals, often with the same habit, is Gypsum quarries of Roccastrada. Here, sometimes, the crystal faces show a particular texture due to dissolution for rainwater exposure, as I had the impression to recognize on your specimen (just an impression).
I hope it serves.
A warm greeting from Gavorrano (about 30 kilometers from Niccioleta and from Roccastrada).
Mineral: | Gypsum, Pyrite |
Locality: | Niccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy | |
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Dimensions: | 12 x 12,5 cm |
Description: |
The biggest crystal is 11 cm. |
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6355 Time(s) |
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Sante Celiberti
Joined: 04 Oct 2019
Posts: 699
Location: Tuscany
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Posted: Jun 05, 2020 15:06 Post subject: Re: Help needed for locations |
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Sorry, I got the wrong button...
Mineral: | Gypsum, Pyrite |
Locality: | Niccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy | |
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Dimensions: | 12 x 12,5 cm |
Description: |
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6343 Time(s) |
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Mineral: | Gypsum |
Locality: | Gypsum quarries, Roccastrada, Grosseto Province, Tuscany, Italy | |
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Dimensions: | 18 x 18 cm |
Description: |
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6342 Time(s) |
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Mineral: | Gypsum |
Locality: | Gypsum quarries, Roccastrada, Grosseto Province, Tuscany, Italy | |
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Dimensions: | 20 x 8 cm |
Description: |
Nice texture due to dissolution. |
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6352 Time(s) |
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Mineral: | Gypsum |
Locality: | Gypsum quarries, Roccastrada, Grosseto Province, Tuscany, Italy | |
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Dimensions: | 20 x 8 cm |
Description: |
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6342 Time(s) |
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Dany Mabillard
Joined: 01 Jul 2019
Posts: 317
Location: Valais
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Posted: Jun 05, 2020 16:25 Post subject: Re: Help needed for locations |
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Thank you Sante for your answer.
I'm fine but I miss the mineral shows and you ?
The gypsum is from an old collection (Deyrolle - 1967) and was sold with Grosseto Province, Tuscany, Italy as location.
My specimen looks more Roccastrada than Niccioleta but because I'm not sure I will keep labeled Grosseto Province, Tuscany, Italy.
Have an excellent weekend and keep safe.
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Dany Mabillard
Joined: 01 Jul 2019
Posts: 317
Location: Valais
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Posted: Jun 05, 2020 16:32 Post subject: Re: Help needed for locations |
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James Catmur wrote: | They could be from almost anywhere. Sorry |
Thank you for your answer.
Excellent weekend.
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Sante Celiberti
Joined: 04 Oct 2019
Posts: 699
Location: Tuscany
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Posted: Jun 05, 2020 17:22 Post subject: Re: Help needed for locations |
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Hi, Dany.
I'm fine too, thank you. And I also miss my usual mineral shows...
As for your gypsum, if you don't see any pyrite traces and, moreover, you see some dissolution patterns you can be sure it comes from Roccastrada and not from Niccioleta.
I've handled hundreds of specimens from both localities and many dozens are in my collection.
Crystals from the many other localities in Grosseto province don't show that size associated with that habit.
Un bon week-end à toi aussi.
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Dany Mabillard
Joined: 01 Jul 2019
Posts: 317
Location: Valais
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Posted: Jun 06, 2020 12:00 Post subject: Re: Help needed for locations |
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Sante Celiberti wrote: | Hi, Dany.
I'm fine too, thank you. And I also miss my usual mineral shows...
As for your gypsum, if you don't see any pyrite traces and, moreover, you see some dissolution patterns you can be sure it comes from Roccastrada and not from Niccioleta.
I've handled hundreds of specimens from both localities and many dozens are in my collection.
Crystals from the many other localities in Grosseto province don't show that size associated with that habit.
Un bon week-end à toi aussi. |
Hello Sante, yes my specimen is Pyrite free and has some dissolution patterns so I'll have à more precise location.
Thank you for your help.
Buona serata.
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