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02 Jul-17:01:48 Some facts about uranium minerals (Silvia)
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02 Jul-16:40:02 The forgotten mines (Silvia)
02 Jul-16:04:59 The mizunaka collection - spessartine (Am Mizunaka)
02 Jul-14:07:28 Re: collection of michael shaw (Michael Shaw)
02 Jul-13:38:52 Cuprite on calcite from congo d. R. / #mvm (minerals - virtual museum) collection (Jordi Fabre)
02 Jul-10:23:30 Re: libyan desert glass structure (Craig Hagstrom)
02 Jul-10:06:48 Re: libyan desert glass structure (Marco Campos-venuti)
02 Jul-09:29:48 Re: libyan desert glass structure (Craig Hagstrom)
02 Jul-09:12:17 Re: libyan desert glass structure (Marco Campos-venuti)
02 Jul-09:02:38 Re: libyan desert glass structure (Craig Hagstrom)
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01 Jul-05:05:41 Re: libyan desert glass structure (Roger Warin)
01 Jul-01:07:57 The mizunaka collection - elbaite (Am Mizunaka)
30 Jun-21:33:59 Re: some rare phosphates from the democratic republic of congo and zimbabwe (Roger Warin)
30 Jun-14:52:04 Re: libyan desert glass structure (Craig Hagstrom)
30 Jun-14:39:38 Re: libyan desert glass structure (Marco Campos-venuti)
30 Jun-13:55:05 Re: tourmaline namibia? (Izak)
30 Jun-13:07:14 Re: libyan desert glass structure (Craig Hagstrom)
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Silvia's Collection
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Michael Shaw
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PostPosted: Oct 13, 2021 10:23    Post subject: Re: Silvia's Collection  

Hello Silvia,

Very nice Panasqueira specimens and great photos. Thank you for sharing these.

When posting photos to your collection page you can include up to 15 photos in the same post instead of posting each of them separately. This keeps the topic box of newest posts on the right hand portion of the page from being filled up by by one user. After including your photo and entering the required information, just press the preview button and you will be able to attach another photo. When you are done you can then submit the entire post.

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Don Lum




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PostPosted: Oct 13, 2021 14:15    Post subject: Re: Silvia's Collection  

Welcome to The Forum, Silvia

Don

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silvia




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PostPosted: Oct 13, 2021 18:36    Post subject: Re: Silvia's Collection  

Hello:

I hope I have not caused a problem. I will try to add the photos as a group, but sometimes, in fact often times, after loading a photo I decide to take another a day or two later.

As I am interested in how a mineral forms within the Panasqueira ore-body, in fact all ore bodies, this requires that I take photos of a mineral from several views and a few photos taken as close-ups. These might be taken after I have already loaded a picture.

I will upload a few photos showing the mineralization within the Panasqueira ore body. My partner and I have friends in Panasqueira, and some work for Almonty,, and they have supplied some wonderful site photos - gems in fact.

I hope you understand.
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silvia




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PostPosted: Oct 15, 2021 14:42    Post subject: Re: Silvia's Collection  

Specimen contains translucent Fluorapatite crystals to 30mm on a Muscovite crystal matrix with a 70 mm long glassy gem Quartz crystal. The specimen is also rich in crystallized Sphalerite and small Siderite crystals. Many of the Siderite crystals contain spherical cores of a sulphide mineral (Pyrite/Pyrrhotite/Marcasite ??) The Fluorapatite crystals display bright orange fluorescence under UVA light.


01 - FLUORAPATITE WITH SPHALERITE AND QUARTZ.jpg
 Mineral: Fluorapatite, Sphalerite, Quartz, Muscovite, Siderite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 14 cm x 12 cm x 7 cm
 Description:
Panasqueira combo specimen
 Viewed:  37365 Time(s)

01 - FLUORAPATITE WITH SPHALERITE AND QUARTZ.jpg



02 - FLUORAPATITE WITH SPHALERITE AND QUARTZ.jpg
 Mineral: Fluorapatite, Sphalerite, Quartz, Muscovite, Siderite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 14 cm x 12 cm x 7 cm
 Description:
FOV 30 mm
 Viewed:  37284 Time(s)

02 - FLUORAPATITE WITH SPHALERITE AND QUARTZ.jpg



03 - FLUORAPATITE WITH SPHALERITE AND QUARTZ.jpg
 Mineral: Fluorapatite, Sphalerite, Quartz, Muscovite, Siderite
 Dimensions: 14 cm x 12 cm x 7 cm
 Description:
FOV 30 mm
 Viewed:  37367 Time(s)

03 - FLUORAPATITE WITH SPHALERITE AND QUARTZ.jpg



04 - FLUORAPATITE WITH SPHALERITE AND QUARTZ 5.jpg
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 14 cm x 12 cm x 7 cm
 Description:
FOV 30 mm
 Viewed:  37332 Time(s)

04 - FLUORAPATITE WITH SPHALERITE AND QUARTZ 5.jpg


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silvia




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PostPosted: Oct 16, 2021 15:49    Post subject: Re: Silvia's Collection  

Book on Panasqueira

One of the projects my partner and I are keen to do is self-publish a book on the Panasqueira Mine. It will be well documented, professionally illustrated and available to all free-of-charge as a download from our webpage - a living legacy to our children.

The book will cover many topics, including but not limited to past and present mining methods, geology, geography, historical personalities, and of course our Panasqueira mineral collection.

Thanks to family and friends, and the help of Almonty we have some wonderful pictures to show.



VEIN SECTION PANASQUIERA MINES 1.jpg
 Mineral: _
 Locality:
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Description:
Vein section. Maximum width 150 mm containing Quartz, Ferberite, Siderite and Arsenopyrite.
 Viewed:  37234 Time(s)

VEIN SECTION PANASQUIERA MINES 1.jpg



VEIN SECTION PANASQUIERA MINES 2.jpg
 Mineral: _
 Locality:
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Description:
Vein section 450 mm wide, containing Quartz, Ferberite, Pyrite and Arsenopyrite.
 Viewed:  37201 Time(s)

VEIN SECTION PANASQUIERA MINES 2.jpg


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James Catmur
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PostPosted: Oct 17, 2021 04:39    Post subject: Re: Silvia's Collection  

Silvia

I hope you have a copy on the Bocamina magazine (en español) on the mines. If not PM me as I may have a spare copy

James
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PostPosted: Oct 17, 2021 10:26    Post subject: Re: Silvia's Collection  

Hi Silvia.

Welcome to FMF.

Nice first ferberite.
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PostPosted: Oct 17, 2021 15:03    Post subject: Re: Silvia's Collection  

James Catmur wrote:
Silvia

I hope you have a copy on the Bocamina magazine (en español) on the mines. If not PM me as I may have a spare copy

James


We do have a copy of the publication. The earliest article we have on Panasqueira is 1925. We are trying to find any persons related to the Mine Managers of the early 1900's. It is amazing what some people have lurking inside dusty boxes in the basement or attic of their homes.

We have also read the wonderful articles published in MinRec and Lapis about the minerals from the Panasqueira mine.Lots of Fluoroapatite pictures :)

The diversity of minerals within the Panasqueira ore body makes it a fabulous site to study, and of course there is a lot of social history too.We are proud to have many of the main collector quality minerals from the site, and we are adding more to our collection.

I have attached as a jpeg a summary of the minerals we have obtained from the Panasqueira ore body, and it is based on a table published in a 1963 publication by Beralt Tin and Wolfram Ltd entitled, Couto Mineiro Da Panasqueira, Treatment of Ore, May 1963.



Panasqueira Collector Minerals.jpg
 Description:
Minerals in Our Collection
 Viewed:  18676 Time(s)

Panasqueira Collector Minerals.jpg


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silvia




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PostPosted: Oct 17, 2021 15:05    Post subject: Re: Silvia's Collection  

Firmo Espinar wrote:
Hi Silvia.

Welcome to FMF.

Nice first ferberite.


Thank you. We have three more to post. I hope you will enjoy the upcoming photos.
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PostPosted: Oct 17, 2021 18:44    Post subject: Re: Silvia's Collection - Quartz  

The specimen contains many gem colourless crystals of Quartz, the most prominent crystal is 9 cm long. Bright lustrous crystals of Arsenopyrite to 3 cm are also present as well as 'spherical' crystals of an unknown mineral, perhaps chlorite (?).


01 - QUARTZ ARSENOPYRITE.jpg
 Mineral: Quartz, Arsenopyrite and Chlorite (Group)
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 22 cm x 16 cm x 9 cm
 Description:
Panasqueira Quartz
 Viewed:  18627 Time(s)

01 - QUARTZ ARSENOPYRITE.jpg



02 - QUARTZ ARSENOPYRITE.jpg
 Mineral: Quartz, Chlorite (Group)
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 22 cm x 16 cm x 9 cm
 Description:
Panasqueira Quartz
 Viewed:  18632 Time(s)

02 - QUARTZ ARSENOPYRITE.jpg



03 - QUARTZ ARSENOPYRITE.jpg
 Mineral: Quartz, Arsenopyrite and Chlorite (Group)
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 22 cm x 16 cm x 9 cm
 Description:
Panasqueira Quartz - Arsenopyrite
 Viewed:  18611 Time(s)

03 - QUARTZ ARSENOPYRITE.jpg


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PostPosted: Oct 18, 2021 02:41    Post subject: Re: Silvia's Collection - Quartz  

silvia wrote:
The specimen contains many gem colourless crystals of Quartz, the most prominent crystal is 9 cm long. Bright lustrous crystals of Arsenopyrite to 3 cm are also present as well as 'spherical' crystals of an unknown mineral, perhaps chlorite (?).

Mineral: Quartz, Arsenopyrite
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
22 cm x 16 cm x 9 cm
What a gorgeous Panasqueira specimen! Very impressive size and great aesthetics with that paragenesis. A true museum piece, wow!
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PostPosted: Oct 18, 2021 08:42    Post subject: Re: Silvia's Collection - Quartz  

silvia wrote:
The specimen contains many gem colorless crystals of Quartz, the most prominent crystal is 9 cm long. Bright lustrous crystals of Arsenopyrite to 3 cm are also present as well as 'spherical' crystals of an unknown mineral, perhaps chlorite (?).

Bravo, this is wasn't easy, and yes, it is Chlorite (probably Clinochlore but impossible to be sure without analysis, so, Chlorite Group

BTW, you can add the Chlorite (Group) to your 'Panasqueira Collector Minerals' list, because some times it appears as fine specimens. Also, the elusive Panasqueiraite which very rarely appear as a collector piece, but although very rare is not impossible. This is not the case of the Thadeuite which is mostly intergrowth with the Panasqueiraite.
Be careful with the common triplite, which is frequently named as Panasqueiraite by mistake or by lack of a proper analysis.

Highly recommended too is the article "The Panasqueira mines, Castelo Branco district, Portugal" published by the magazine Mineralogical Record, January-February 2014, Volume 45, Number 1, pages 11-55, because is even more extended than the Bocamina and Lapis ones.
See: https://www.mineral-forum.com/message-board/viewtopic.php?p=42665#42665
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PostPosted: Oct 18, 2021 14:47    Post subject: Re: Silvia's Collection - Quartz  

Tobi wrote:
silvia wrote:
The specimen contains many gem colourless crystals of Quartz, the most prominent crystal is 9 cm long. Bright lustrous crystals of Arsenopyrite to 3 cm are also present as well as 'spherical' crystals of an unknown mineral, perhaps chlorite (?).

Mineral: Quartz, Arsenopyrite
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
22 cm x 16 cm x 9 cm
What a gorgeous Panasqueira specimen! Very impressive size and great aesthetics with that paragenesis. A true museum piece, wow!


Thank you Tobi, my partner and I appreciate your support. It is not the largest specimen from Panasqueira in our collection. We have a large Arsenopyrite with Sphalerite and minor Muscovite and Siderite.
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PostPosted: Oct 19, 2021 01:16    Post subject: Re: Silvia's Collection - Quartz  

silvia wrote:
[...] Thank you Tobi, my partner and I appreciate your support. It is not the largest specimen from Panasqueira in our collection. We have a large Arsenopyrite with Sphalerite and minor Muscovite and Siderite.
I hope I'm going to see all of those great pieces :-)
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PostPosted: Oct 19, 2021 15:23    Post subject: Silvia's Collection - Panasqueira Arsenopyrite  

The specimen comprises many lustrous crystals of Arsenopyrite to 4 cm with crystals of Sphalerite to 3 cm. Crystals of Siderite and Muscovite are also present


01 - ARSENOPYRITE WITH SPHALERITE.jpg
 Mineral: Arsenopyrite, Sphalerite, Siderite, Muscovite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 23 cm x 16 cm x 8cm
 Description:
Panasqueira Arsenopyrite
 Viewed:  18332 Time(s)

01 - ARSENOPYRITE WITH SPHALERITE.jpg



01A - ARSENOPYRITE WITH SPHALERITE - REAR.jpg
 Mineral: Arsenopyrite, Sphalerite, Siderite, Muscovite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 23 cm x 16 cm x 8cm
 Description:
Rear of specimen
 Viewed:  18312 Time(s)

01A - ARSENOPYRITE WITH SPHALERITE - REAR.jpg



02 - ARSENOPYRITE WITH SPHALERITE.jpg
 Mineral: Arsenopyrite, Sphalerite, Siderite, Muscovite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 23 cm x 16 cm x 8cm
 Description:
Detail of Sphalerite
 Viewed:  18350 Time(s)

02 - ARSENOPYRITE WITH SPHALERITE.jpg



03 - ARSENOPYRITE WITH SPHALERITE.jpg
 Mineral: Arsenopyrite, Sphalerite, Siderite, Muscovite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 23 cm x 16 cm x 8 cm
 Description:
Detail of Arsenopyrite
 Viewed:  18339 Time(s)

03 - ARSENOPYRITE WITH SPHALERITE.jpg



04 - ARSENOPYRITE WITH SPHALERITE.jpg
 Mineral: Arsenopyrite, Sphalerite, Siderite, Muscovite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 23 cm x 16 cm x 8cm
 Description:
Detail of Muscovite
 Viewed:  18339 Time(s)

04 - ARSENOPYRITE WITH SPHALERITE.jpg



05 - ARSENOPYRITE WITH SPHALERITE.jpg
 Mineral: Arsenopyrite, Sphalerite, Siderite, Muscovite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 23 cm x 16 cm x 8cm
 Description:
Detail of Muscovite and Arsenopyrite
 Viewed:  18320 Time(s)

05 - ARSENOPYRITE WITH SPHALERITE.jpg



06 - ARSENOPYRITE WITH SPHALERITE.jpg
 Mineral: Arsenopyrite, Sphalerite, Siderite, Muscovite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 23 cm x 16 cm x 8cm
 Description:
Detail of Arsenopyrite, Muscovite and Siderite
 Viewed:  18330 Time(s)

06 - ARSENOPYRITE WITH SPHALERITE.jpg


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