The Panasqueira Gallery includes a number of specimens from the world-famous tungsten and tin specimen-producing mines of Panasqueira in central Portugal. There are three pages to browse with a variety of specimens such as apatite, siderite, arsenopyrite, quartz and others.

 

WPAN-08/96 - Apatite and siderite on muscovite

Barroca Grande Mine, Panasqueira, near Silvares (Fundao, Portugal)

A thick layer of silvery muscovite plates crystallized at bottom coated on that side by tan colored crystals of siderite. On the top open surface there are several crystals of zoned lustrous translucent apatite, the largest to 1.8 and 1.6 cm. across, color is something between green, grey and blue. There are as well small crystals of lustrous gemmy quartz to 7 mm. long, creamy tabular crystals of siderite to 1 mm. across, a lonely lustrous 5-mm. long arsenopyrite crystal and transparent brown needles of turmaline. One of the main apatite crystals has a small nick, otherwise undamaged. A great nice specimen from Panasqueira.

10.8x9.2x5.3 - 150 €

MS 12/12

 

 

WPAN-08/110 - Dolomite and quartz

Barroca Grande Mine, Panasqueira, near Silvares (Fundao, Portugal)

White rhombic crystals of dolomite to about 1 cm. across are coating a cluster of quartz crystals partly seen below the dolomite. The reddish color is probably due to a thin layer of oxides below the surface of the dolomite. The visible quartz areas are also coated by a mixture of crystallized creamy siderite, white calcite and lustrous golden pyrite cubes, all of them to about 1 mm. Undamaged.

7.4x5x5.2 - 50 €

MS 10/12

 

 

WPAN-08/111 - Dolomite and muscovite

Barroca Grande Mine, Panasqueira, near Silvares (Fundao, Portugal)

Cluster of large siderite crystals to about 7 cm. across and aggregates of muscovite crystals on matrix. Most of the specimen has been coated by a later layer of small curved dolomite crystals that only allows to see some of the underlying muscovite. There is a scattering of tiny golden globules of pyrite on the muscovite and even smaller crystals of pyrite or marcasite on areas of the dolomite. At bottom in the contact with the matrix there are numerous needles of turmaline. Undamaged.

11.5x10.3x5.5 - 100 €

 

 

WPAN-08/118 - Ferberite and siderite

Barroca Grande Mine, Panasqueira, near Silvares (Fundao, Portugal)

Matrixless cluster of lustrous black crystals of etched ferberite with a partial coating of oxidized clays and small brown crystals of siderite. Quite clean of damage and different than most of Panasqueira ferberites.

7.6x4.5x2.5 - 45 €

 

 

WPAN-08/121 - Chalcopyrite, arsenopyrite and siderite

Barroca Grande Mine, Panasqueira, near Silvares (Fundao, Portugal)

Floater mass of metallic grey arsenopyrite with crystals to about 8 mm. long on which several crystalline areas of shiny golden chalcopyrite to 4x1.5 cm. have grown. There are several lustrous black crystals of sphalerite to about 1 cm. across (bottom left picture) as well as some black ferberite (bottom right picture). Numerous flat rhombs of tan colored siderite to 1.3 cm. across and a 1.5-cm. across green crystal of apatite add to the whole. Quite clean of damage.

8.8x4.8x3 - 48 €

MS 6/12

 

 

WPAN-08/123 - Sphalerite, chalcopyrite and calcite

Barroca Grande Mine, Panasqueira, near Silvares (Fundao, Portugal)

Floater cluster of chalcopyrite and sphalerite (mostly the area shown at bottom right picture) crystals completely coated by a thin layer of a mixture of both minerals with an almost silky luster and a greenish black color tipycal of this association in Panasqueira. There are white composite crystals of calcite to about 1.5 cm. across coating the back as well as tiny golden cubic crystals of pyrite scattered on the chalcopyrite-sphalerite. Undamaged and interesting.

10.3x7.5x3.8 - 55 €

 

 

WPAN-08/117 - Muscovite, siderite and apatite

Barroca Grande Mine, Panasqueira, near Silvares (Fundao, Portugal)

Floater cluster of muscovite crystals, almost black on surface but silvery and lustrous where the inner structure of the cluster is seen with a partial coating of creamy tabular hexagonal crystals of siderite to about 7 mm. across. There are a few light green lustrous translucent crystals of apatite to about 7 mm. here and there. Undamaged, the areas where the muscovite cluster is not completed are old and natural (small siderite crystals can be seen growing there).

8.5x6.3x5 - 60 €

 

 

WPAN-08/107 - Siderite, turmaline and arsenopyrite

Barroca Grande Mine, Panasqueira, near Silvares (Fundao, Portugal)

Cluster of tan hexagonal tabular to short prismatic crystals of siderite to 2.5 cm. across (although most are smaller) with some pieces of turmaline-coated matrix at bottom. Turmaline appears as very thin lustrous needles everywhere at bottom and here and there on the siderite. Also at bottom there are masses of small crystals of mucovite and grey crystals of arsenopyrite with epitactic overgrowths of marcasite in some areas. The siderite crystals show a scattering of tiny golden crystals of marcasite and probably some arsenopyrite. Quite clean of damage.

9.5x6.8x4.7 - 55 €

 

 

WPAN-08/105 - Siderite and apatite

Barroca Grande Mine, Panasqueira, near Silvares (Fundao, Portugal)

Nice cluster of tan disc-shaped crystals of siderite to 3 cm. across with a silky luster with a little piece os matrix attached. There are some lustrous dark green hexagonal crystals of apatite to about 5 mm. across in some areas of the specimen and small needles of turmaline on the matrix piece. A couple of apatite crystals (one at back) shows minor damage, otherwise undamaged and quite interesting.

5.7x3.3x2.9 - 35 €

MS 10/12

 

 

WPAN-08/104 - Siderite

Barroca Grande Mine, Panasqueira, near Silvares (Fundao, Portugal)

Cluster of creamy tabular hexagonal crystal of siderite to about 1 cm. across with small tarnished crystals of arsenopyrite, transparent green crystals of apatite and needles of turmaline at bottom. Minor cleaving at the edges of the specimen.

8x6x2.8 - 45 €

 

 

WPAN-08/99 - Siderite and apatite

Barroca Grande Mine, Panasqueira, near Silvares (Fundao, Portugal)

Loose tan colored rhombic crystal of siderite with a few small apatite crystals to 3 mm. across attached and a dusting of golden marcasite. One edge shows minor contacting, otherwise undamaged.

3.8x3.8x2.5 - Sold

 

 

WPAN-08/98 - Siderite

Barroca Grande Mine, Panasqueira, near Silvares (Fundao, Portugal)

Loose tan colored rhombic crystal of siderite with a dusting of golden marcasite on some areas (there is even a 2 mm. crystal). There is some contacting with a previous quartz crystal as seen on the pictures and a small area peeled off as only damage.

4x3.6x2.7 - Sold

 

 

WPAN-08/101 - Siderite and arsenopyrite

Barroca Grande Mine, Panasqueira, near Silvares (Fundao, Portugal)

Matrixless cluster of tan colored rhombic crystals of siderite to 5 cm. across with a metallic grey to golden (probably due to a thin layer of epitactic marcasite) 3-cm. long crystal or arsenopyrite at back and minor silvery muscovite. One of the smaller siderite crystals has some cleaving which allows to appreciate the darker color of the core as is typical in siderites from Panasqueira.

5.8x4.5x4.2 - 30 €

 

 

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