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Dany Mabillard
Joined: 01 Jul 2019
Posts: 233
Location: Valais
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 Posted: Mar 06, 2021 15:29 Post subject: Re: Collection from Dany Mabillard |
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Very aesthetic specimen.
| Mineral: | Gypsum |
| Locality: | | Switzerland |  |
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| Dimensions: | 90 mm x 80 mm x 70 mm |
| Description: |
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1534 Time(s) |
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Sante Celiberti
Joined: 04 Oct 2019
Posts: 528
Location: Tuscany
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| Posted: Mar 06, 2021 16:23 Post subject: Re: Collection from Dany Mabillard |
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Hi, Dany.
Thank you, I'm fine, although waiting for the vaccine...
As far as I know, needle quartz often occurs with the Dauphiné habit in Val Bedretto (and many other Alpine localities).
It is not difficult to distinguish it. A rhombohedral face (of the termination...) is quite larger than the others, sometimes a little and sometimes a lot, creating in the second case, a so called flute beak shape.
I'm sure now you will find some among your Alpine quartzes. Good luck.
Stay safe.
Sante
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Sante Celiberti
Joined: 04 Oct 2019
Posts: 528
Location: Tuscany
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| Posted: Mar 06, 2021 17:02 Post subject: Re: Collection from Dany Mabillard |
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| For example, in the needle quartz from Bedretto Valley that you posted on july 10th 2019 there are many. :-)
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Volkmar Stingl
Joined: 23 Sep 2012
Posts: 399
Location: Innsbruck
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| Posted: Mar 07, 2021 01:40 Post subject: Re: Collection from Dany Mabillard |
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Hi Dany,
are you sure, that your last needle quartz is really quartz? I am quite sure, that I see some dovetail twins, and also the overall habit makes me think of gypsum. What is the hardness of these crystals?
Maybe I am wrong, my eyes sometimes are not that good as I want.
Volkmar
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4684
Location: Barcelona
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| Posted: Mar 07, 2021 04:28 Post subject: Re: Collection from Dany Mabillard |
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| Volkmar Stingl wrote: | Hi Dany,
are you sure, that your last needle quartz is really quartz? I am quite sure, that I see some dovetail twins, and also the overall habit let me think of gypsum. What is the hardness of these crystals?... |
I agree, it looks a lot like Gypsum
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 856
Location: Cambridge
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| Posted: Mar 07, 2021 07:19 Post subject: Re: Collection from Dany Mabillard |
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| I agree that it looks like gypsum
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Dany Mabillard
Joined: 01 Jul 2019
Posts: 233
Location: Valais
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| Posted: Mar 07, 2021 07:58 Post subject: Re: Collection from Dany Mabillard |
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Thanks James, Jordi and Volkmar.
You're right. "The Chinese Fluorite won the fight against the Swiss Gypsum". You must not always trust the seller.
Could someone change the mineral name and keep only Switzerland for the provenance ?
Have a nice Sunday and keep safe.
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Dany Mabillard
Joined: 01 Jul 2019
Posts: 233
Location: Valais
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| Posted: Mar 20, 2021 09:43 Post subject: Re: Collection from Dany Mabillard |
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Two Swiss specimens.
| Mineral: | Muscovite - Quartz |
| Locality: | | Switzerland | |
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| Dimensions: | 60 mm x 40 mm x 30 mm |
| Description: |
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| Viewed: |
1190 Time(s) |
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| Mineral: | Hematite |
| Locality: | | Switzerland | |
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| Dimensions: | 180 mm x 120 mm x 50 mm |
| Description: |
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| Viewed: |
1188 Time(s) |
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| Mineral: | Hematite |
| Locality: | | Switzerland | |
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| Dimensions: | 10 mm x 5 mm x 2 mm |
| Description: |
| Dimension for the biggest. Detail of the preceeding one. |
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| Viewed: |
1190 Time(s) |
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Volkmar Stingl
Joined: 23 Sep 2012
Posts: 399
Location: Innsbruck
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| Posted: Mar 20, 2021 10:37 Post subject: Re: Collection from Dany Mabillard |
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Sorry Dany,
Your first hematite (with quartz) is not hematite, but nice silvery muscovite plates, as far as I see.
Volkmar
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1656
Location: Oklahoma
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| Posted: Mar 20, 2021 18:44 Post subject: Re: Collection from Dany Mabillard |
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| Volkmar Stingl wrote: | Sorry Dany,
Your first hematite (with quartz) is not hematite, but nice silvery muscovite plates, as far as I see.
Volkmar |
Absolutely. Change made.
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Dany Mabillard
Joined: 01 Jul 2019
Posts: 233
Location: Valais
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| Posted: Mar 21, 2021 10:43 Post subject: Re: Collection from Dany Mabillard |
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| Volkmar Stingl wrote: | Sorry Dany,
Your first hematite (with quartz) is not hematite, but nice silvery muscovite plates, as far as I see.
Volkmar |
Thank you for your message. I need to be more careful and still to learn a lot.
Have a nice day and keep safe.
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Dany Mabillard
Joined: 01 Jul 2019
Posts: 233
Location: Valais
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| Posted: Mar 21, 2021 10:46 Post subject: Re: Collection from Dany Mabillard |
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| Michael Shaw wrote: | | Volkmar Stingl wrote: | Sorry Dany,
Your first hematite (with quartz) is not hematite, but nice silvery muscovite plates, as far as I see.
Volkmar |
Absolutely. Change made. |
Thank you and sorry. Have a nice day and keep safe..
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 856
Location: Cambridge
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| Posted: Mar 22, 2021 08:49 Post subject: Re: Collection from Dany Mabillard |
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Done
| Dany Mabillard wrote: | Thanks James, Jordi and Volkmar.
You're right. "The Chinese Fluorite won the fight against the Swiss Gypsum". You must not always trust the seller.
Somebody could change the mineral name and keep only Switzerland for the provenance ?
Have a nice Sunday and keep safe. |
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Dany Mabillard
Joined: 01 Jul 2019
Posts: 233
Location: Valais
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| Posted: Apr 11, 2021 12:10 Post subject: Re: Collection from Dany Mabillard |
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Hope this time I don't write too many false information. Minerals from Ernest W. Matti collection.
| Mineral: | Rhodochrosite, Calcite, Pyrite and Sphalerite |
| Locality: | | Cerro de Pasco, Provincia de Pasco, Departamento de Pasco, Peru | |
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| Dimensions: | 64 mm x 52 mm x 29 mm |
| Description: |
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| Viewed: |
820 Time(s) |
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| Mineral: | Brochantite |
| Locality: | | Copiapó Province, Atacama Region, Chile | |
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| Dimensions: | 64 mm x 47 mm x 22 mm |
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| Viewed: |
822 Time(s) |
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| Mineral: | Fluorite and Dolomite |
| Locality: | | El Llano, Solís, Corvera de Asturias, Comarca Avilés, Asturias, Principality of Asturias, Spain | |
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| Dimensions: | 71mm x 57mm x 30 mm |
| Description: |
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| Viewed: |
823 Time(s) |
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| Mineral: | Calcite and Dolomite |
| Locality: | | Banská Štiavnica (Schemnitz), Banská Štiavnica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | 56 mm x 50 mm x 27 mm |
| Description: |
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| Viewed: |
821 Time(s) |
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| Mineral: | Rhodochrosite, Quartz and Sphalerite |
| Locality: | | Cerro de Pasco, Provincia de Pasco, Departamento de Pasco, Peru | |
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| Description: |
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| Viewed: |
827 Time(s) |
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