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28 Nov-06:36:33 Re: cannon slr with stacking (James Catmur)
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28 Nov-04:00:00 Re: collection of volkmar stingl (Volkmar Stingl)
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28 Nov-00:05:40 Re: cannon slr with stacking (Fiebre Verde)
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27 Nov-11:18:52 Re: collection of volkmar stingl (Volkmar Stingl)
27 Nov-10:27:52 Re: collection of michael shaw (Michael Shaw)
27 Nov-05:02:15 The mizunaka collection - fluorite (Am Mizunaka)
26 Nov-17:19:00 A brief introduction to the rio site at cabeco do piao - silvia's collection (Silvia)
26 Nov-16:02:45 Re: collection of sante celiberti (Sante Celiberti)
26 Nov-11:10:41 Re: new generation for picture - ploum (Ploum)
25 Nov-20:34:16 The mizunaka collection - rhodochrosite (Am Mizunaka)
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25 Nov-10:27:48 Epitaxial or twinned rutile? (Josele)
24 Nov-15:05:05 Siderite and fluorite - silvia's collection (Silvia)
24 Nov-14:48:09 Re: silvia's collection (Silvia)
24 Nov-05:03:39 Re: silvia's collection (Sante Celiberti)

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Silvia's Collection
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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:  3174 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:  3122 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:  3133 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:  3125 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:  2828 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:  2827 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:  2827 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:  2828 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:  2828 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:  2828 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:  2828 Time(s)

06 - ARSENOPYRITE WITH SPHALERITE.jpg


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PostPosted: Oct 21, 2021 14:22    Post subject: Silvia's Collection - A very brief Introduction to mining at Panasqueira  

A VERY BRIEF INTRODUCTION TO MINING AT PANASQUEIRA

Mechanized room and pillar stoping is the principle mining method used at Panasqueira. It is made possible by the sub-horizontal nature of the Quartz veins and the very structurally sound nature of the host rock. Underground supports are seldom needed, but when argillaceous faults are encountered, concrete reinforcement is used, with arches either side of such faults in the main drives. When large opening are needed, rock bolts, screen and shotcrete provide the necessary support.

Stoping begins with ramps being driven to access the mineralized veins, in those areas where diamond drilling has indicated quartz intersections equal to or above 18 cm.

When a vein is accessed, it is blocked out on a basic 100m by 100m pattern. Ore passes of 1.8 metre diameter are generally bored near the drive/panel intersections. Ore can then be dropped down to the main haulage levels. Chutes are installed in the bottom of the ore-passes to facilitate the loading of the wagons.

Blast holes are drilled 2.4 metres in length and are 43mm in diameter.

There are four main levels in the mine, and all levels are connected by ramps. Level 530mRL (metres above sea level) is the main water drainage level of the mine. It lies between level 2 (560mRL) and Level 3 (470 mRL).

Below level 2 (560mRL) is the crusher. Ore above level 2 (560 mRL) is fed from ore passes (bins) into 4 Ton self-tipping rail cars and hauled by electric and diesel trolley locomotives to the ore chute on level 2 (560 mRL). The level 2 (560 mRL) ore chute feeds the underground crusher.

Ore from below Level 2 is trammed on Level 3 to the winze where the rail cars are individually hoisted to Level 2. From this shaft the cars are trammed to where they self-dump into the crusher ore chute. The underground crusher feeds ore to a conveyor belt in the Santa Barbara hoisting ramp.



00 - DIAGRAM OF THE LONG SECTION OF THE ORE TRANSFER SYSTEM.jpg
 Mineral: _
 Description:
 Viewed:  2754 Time(s)

00 - DIAGRAM OF THE LONG SECTION OF THE ORE TRANSFER SYSTEM.jpg



01 - DRILLING THE VEINS FOR BLASTING.jpg
 Mineral: _
 Description:
Blasting Holes
 Viewed:  2752 Time(s)

01 - DRILLING THE VEINS FOR BLASTING.jpg



02 - BLASTED ORE COLLECTED -MUCKING THE ORE.jpg
 Mineral: _
 Description:
Mucking Blasted Veins
 Viewed:  2752 Time(s)

02 - BLASTED ORE COLLECTED -MUCKING THE ORE.jpg



03 - ORE CART RAISED FROM LOWER LEVEL.jpg
 Mineral: _
 Description:
Raising of Ore Carts
 Viewed:  2756 Time(s)

03 - ORE CART  RAISED FROM LOWER LEVEL.jpg



04 - ORE HOIST.jpg
 Mineral: _
 Description:
Ore Hoist another view
 Viewed:  2753 Time(s)

04 - ORE HOIST.jpg



05 - ORE CHUTE TO CRUSHER.jpg
 Mineral: _
 Description:
Ore Chute to Underground Crusher
 Viewed:  2754 Time(s)

05 - ORE CHUTE TO CRUSHER.jpg



06 - TRUCKS DUMPING ORE TO CRUSHER.jpg
 Mineral: _
 Description:
Trucks dumping Ore into Ore Chute
 Viewed:  2752 Time(s)

06 - TRUCKS DUMPING ORE TO CRUSHER.jpg



07 - ORE CHUTE TO CRUSHER.jpg
 Mineral: _
 Description:
Ore Chute to Underground Crusher another view
 Viewed:  2753 Time(s)

07 - ORE CHUTE TO CRUSHER.jpg



08 - ORE CHUTE.jpg
 Mineral: _
 Description:
Another Ore Chute to load trucks
 Viewed:  2753 Time(s)

08 - ORE CHUTE.jpg



09 - ORE BIN 1.jpg
 Mineral: _
 Description:
Ore Bin upper level
 Viewed:  2752 Time(s)

09 - ORE BIN 1.jpg



10 - ORE BIN 2.jpg
 Mineral: _
 Description:
Ore Bin, note the circular hole - a product of the Bore Raiser used in the mine
 Viewed:  2753 Time(s)

10 - ORE BIN 2.jpg



11 - PRIMARY CRUSHER AND BELT TO SURFACE.jpg
 Mineral: _
 Description:
Crusher feeding conveyor belt
 Viewed:  2753 Time(s)

11 - PRIMARY CRUSHER AND BELT TO SURFACE.jpg



12 - CRUSHED ORE TO SURFACE TREATMENT FACILITIES.jpg
 Mineral: _
 Description:
Many fine specimens crushed to feed extraction facilities on the surface.
 Viewed:  2751 Time(s)

12 - CRUSHED ORE TO SURFACE TREATMENT FACILITIES.jpg


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PostPosted: Oct 23, 2021 15:08    Post subject: Silvia's Collection - Classic Portugese Ferberite  

A classic Portuguese Ferberite with large lustrous bladed and blocky crystals of Ferberite measuring to 9 cm x 8 cm x 2 cm in size forming an aesthetic cluster with Chalcopyrite, minor Pyrite, and Muscovite.


1 FERBERITE.jpg
 Mineral: Ferberite, Chalcopyrite, Pyrite, Muscovite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 14 cm x 10 cm x 10 cm
 Description:
 Viewed:  2614 Time(s)

1 FERBERITE.jpg



2 FERBERITE.jpg
 Mineral: Ferberite, Chalcopyrite, Pyrite, Muscovite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 14 cm x 10 cm x 10 cm
 Description:
 Viewed:  2612 Time(s)

2 FERBERITE.jpg



3 FERBERITE.jpg
 Mineral: Ferberite, Chalcopyrite, Pyrite, Muscovite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 14 cm x 10 cm x 10 cm
 Description:
 Viewed:  2611 Time(s)

3 FERBERITE.jpg



4 FERBERITE.jpg
 Mineral: Ferberite, Chalcopyrite, Pyrite, Muscovite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 14 cm x 10 cm x 10 cm
 Description:
 Viewed:  2613 Time(s)

4 FERBERITE.jpg



5 FERBERITE.jpg
 Mineral: Ferberite, Chalcopyrite, Pyrite, Muscovite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 14 cm x 10 cm x 10 cm
 Description:
Detail of Ferberite
 Viewed:  2615 Time(s)

5 FERBERITE.jpg


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PostPosted: Oct 24, 2021 20:05    Post subject: Silvia's Collection - Huge Siderite  

Large disc-shaped crystal of Siderite 14 cm in size set on a matrix of crystallized Siderite with Pyrite and Arsenopyrite.


01 - SIDERITE WITH PYRITE, ARSENOPYRITE.jpg
 Mineral: Siderite, Arsenopyrite, Pyrite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 15 cm x 15 cm x 7 cm
 Description:
Large disk of Siderite - Front View
 Viewed:  2523 Time(s)

01 - SIDERITE WITH PYRITE, ARSENOPYRITE.jpg



02 - SIDERITE WITH PYRITE, ARSENOPYRITE.jpg
 Mineral: Siderite, Arsenopyrite, Pyrite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 15 cm x 15 cm x 7 cm
 Description:
Siderite - rear View
 Viewed:  2520 Time(s)

02 - SIDERITE WITH PYRITE, ARSENOPYRITE.jpg


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PostPosted: Oct 25, 2021 01:34    Post subject: Re: Silvia's Collection  

Outstanding specimens, Silvia! That large ferberite is a stunner!
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PostPosted: Oct 25, 2021 14:41    Post subject: Re: Silvia's Collection  

Tobi wrote:
Outstanding specimens, Silvia! That large ferberite is a stunner!


Thank you Tobi.

We have worked very hard to acquire some very nice Ferberite specimens from Panasqueira. Panasqueira does produce copper and tin concentrates for export, but Tungsten is the most important metal at the mine. In fact without Tungsten there would be no Panasqueira.

By the way we have been promised some representative samples (ca. 250 gram each) of all the concentrates from Panasqueira – tin, copper, tungsten – and when properly exhibited these should also add a lot of depth to our collection.
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PostPosted: Oct 25, 2021 17:59    Post subject: Re: Silvia's Collection - Schorl/Dravite Panasqueira  

Glassy green tabular Fluorapatite crystals to 2 cm in size on a base of fine needle like crystals of Schorl-Dravite (confirmed) and crystals of brassy Marcasite-Arsenopyrite to 1 cm. Quartz is also present. The rear of the specimen contains microcrystals of Dolomite. The Fluorapatite crystals display bright orange fluorescence in the presence of UVA light.


01 - FLUORAPATITE ON SCHORL-DRAVITE.jpg
 Mineral: Fluorapatite, Dravite-Schorl Series, Marcasite/Arsenopyrite, Quartz, Dolomite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 11 cm x 7 cm x 3 cm
 Description:
Crystals of Fluorapatite
 Viewed:  2398 Time(s)

01 - FLUORAPATITE ON SCHORL-DRAVITE.jpg



02 -FLUORAPATITE ON SCHORL-DRAVITE.jpg
 Mineral: Fluorapatite, Dravite-Schorl Series
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 11 cm x 7 cm x 3 cm
 Description:
Detail of Schorl/Dravite
 Viewed:  2398 Time(s)

02 -FLUORAPATITE ON SCHORL-DRAVITE.jpg



03 - FLUORAPATITE ON SCHORL-DRAVITE.jpg
 Mineral: Fluorapatite, Dravite-Schorl Series, Dolomite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 11 cm x 7 cm x 3 cm
 Description:
Detail of Schorl/Dravite
 Viewed:  2401 Time(s)

03 - FLUORAPATITE ON SCHORL-DRAVITE.jpg



04 - FLUORAPATITE ON SCHORL-DRAVITE.jpg
 Mineral: Fluorapatite, Dravite-Schorl Series
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 11 cm x 7 cm x 3 cm
 Description:
Detail of crystals
 Viewed:  2400 Time(s)

04 - FLUORAPATITE ON SCHORL-DRAVITE.jpg



06 - FLUORAPATITE ON SCHORL-DRAVITE.jpg
 Mineral: Fluorapatite, Dravite-Schorl Series
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 11 cm x 7 cm x 3 cm
 Description:
Detail of inclusions
 Viewed:  2398 Time(s)

06 - FLUORAPATITE ON SCHORL-DRAVITE.jpg



05 - FLUORAPATITE ON SCHORL-DRAVITE.jpg
 Mineral: Fluorapatite, Dravite-Schorl Series
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 11 cm x 7 cm x 3 cm
 Description:
Detail of Inclusions
 Viewed:  2400 Time(s)

05 - FLUORAPATITE ON SCHORL-DRAVITE.jpg



07 - FLUORAPATITE ON SCHORL-DRAVITE.jpg
 Mineral: Fluorapatite, Dravite-Schorl Series, Marcasite/Arsenopyrite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 11 cm x 7 cm x 3 cm
 Description:
Detail of crystals
 Viewed:  2400 Time(s)

07 - FLUORAPATITE ON SCHORL-DRAVITE.jpg



08 - FLUORAPATITE ON SCHORL-DRAVITE.jpg
 Mineral: Fluorapatite, Dravite-Schorl Series
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 11 cm x 7 cm x 3 cm
 Description:
Detail of crystals
 Viewed:  2399 Time(s)

08 - FLUORAPATITE ON SCHORL-DRAVITE.jpg



09 - FLUORAPATITE ON SCHORL-DRAVITE - REAR.jpg
 Mineral: Dolomite, Dravite-Schorl Series
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 11 cm x 7 cm x 3 cm
 Description:
Rear of specimen
 Viewed:  2399 Time(s)

09 - FLUORAPATITE ON SCHORL-DRAVITE - REAR.jpg


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am mizunaka




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PostPosted: Oct 25, 2021 20:10    Post subject: Re: Silvia's Collection - Schorl/Dravite Panasqueira  

silvia wrote:
Glassy green tabular Fluorapatite crystals to 2 cm in size on a base of fine needle like crystals of Schorl-Dravite (confirmed) and crystals of brassy Marcasite-Arsenopyrite to 1 cm. Quartz is also present. The rear of the specimen contains microcrystals of Dolomite. The Fluorapatite crystals display bright orange fluorescence in the presence of UVA light.


A splendid fluorapatite specimen!
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silvia




Joined: 10 Oct 2021
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PostPosted: Oct 26, 2021 18:07    Post subject: Re: Silvia's Collection - Schorl/Dravite Panasqueira  

am mizunaka wrote:
silvia wrote:
Glassy green tabular Fluorapatite crystals to 2 cm in size on a base of fine needle like crystals of Schorl-Dravite (confirmed) and crystals of brassy Marcasite-Arsenopyrite to 1 cm. Quartz is also present. The rear of the specimen contains microcrystals of Dolomite. The Fluorapatite crystals display bright orange fluorescence in the presence of UVA light.


A splendid fluorapatite specimen!


Many thanks AM, it is very encouraging to get positive feedback
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silvia




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PostPosted: Oct 26, 2021 18:16    Post subject: Fluorite Panasqueira style - Silvia's Collection  

Lustrous bluish purple translucent crystals of Fluorite to 1.5 cm in size on a matrix containing micro crystals of Pyrite, small green crystals of Fluorapatite, and Siderite. The Fluorapatite crystals show a bright orange fluorescence in the presence of UVA light


01 - FLUORITE WITH PYRITE.jpg
 Mineral: Fluorite, Pyrite, Siderite, Fluorapatite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 8 cm x 6 cm x 4 cm
 Description:
Fluorite in collector quality specimens is not too common at Panasqueira, but a representative sample must be included in all collections of Panasqueira minerals
 Viewed:  2095 Time(s)

01 - FLUORITE WITH PYRITE.jpg



02 -FLUORITE.jpg
 Mineral: Fluorite, Pyrite, Siderite, Fluorapatite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 8 cm x 6 cm x 4 cm
 Description:
Detail of the Fluorite crystals
 Viewed:  2094 Time(s)

02 -FLUORITE.jpg



03 - FLUORITE.jpg
 Mineral: Fluorite, Siderite, Pyrite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 8 cm x 6 cm x 4 cm
 Description:
Detail of Fluorite and Siderite
 Viewed:  2095 Time(s)

03 - FLUORITE.jpg



04 - FLUORITE.jpg
 Mineral: Fluorite, Pyrite, Siderite, Fluorapatite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 8 cm x 6 cm x 4 cm
 Description:
Detail of the crystals
 Viewed:  2095 Time(s)

04 - FLUORITE.jpg



05 - FLUORITE.jpg
 Mineral: Fluorite, Pyrite, Siderite, Fluorapatite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 8 cm x 6 cm x 4 cm
 Description:
Detail of the crystals
 Viewed:  2094 Time(s)

05 - FLUORITE.jpg


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Tobi
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PostPosted: Oct 27, 2021 05:55    Post subject: Re: Fluorite Panasqueira style - Silvia's Collection  

silvia wrote:
Fluorite in collector quality specimens is not too common at Panasqueira, but a representative sample must be included in all collections of Panasqueira minerals
That's right, not too common. The more I like this sample, the fluorites are well developed with an interesting structure (kind of intergrown cuboctahedral crystals?) and have a wonderful dark blue colour in contrast with the associated minerals. Panasqueira is not a main focus of mine but I like the minerals from that deposit - especially when they are combined in such a colourful piece!

Regards
Tobi
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