Reference Specimens
Spanish Fluorite

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Photos by Fabre Minerals. Under Creative Commons license

This page provides a selection of the specimens that have passed through the Fabre Minerals website and, due to their quality,
rarity, or significance as specimens from interesting locations, have been preserved as reference specimens in #MVM

The region where the Asturian Fluorites are found is very beautiful, as you can see in this view from Villaviciosa.
Loroñe, a pleasant village next to the Fito hill, which is where the Emilio mine is located.
Views of the village of Berbes, famous across the world for its Fluorites.
A typical 'hórreo' (grain store) in the village of Caravia Alta, which is very close to the Jaimina mine.



La Collada Fluorite - Geoda del Reguerín

From when mining ended at La Collada until 1998 almost no new specimens were found in the area. That said there were a few finds, such as the large April 1994 pocket called 'Geoda del Reguerín' which was found near the La Viesca area. The pocket was filled with water, but from beneath the water a large number of specimens emerged, with light sky blue crystals of Fluorite that have pale violet phantoms. While the crystals are not that large they are very transparent, and almost always on Quartz matrix. We bought the majority of this find and have some of them below.

Fluorite with Quartz
Fluorite with Quartz.
 

R40A: Very clear, good crystal form.
La Viesca Mine, Reguerín pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (04/1994)

Specimen size: 3.5 × 3 cm = 1.38” × 1.18”

Fluorite with Quartz
 

R56CI7: Very transparent, neat and bright group of cubic crystals. Their color is very pale blue with very well defined zonation of color. They are on a matrix partially covered by small Quartz crystals.
La Viesca Mine, Reguerín pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (04/1994)

Specimen size: 8.9 × 7.9 × 5.8 cm = 3.50” × 3.11” × 2.28”

Main crystal size: 2.1 × 1.7 cm = 0.83” × 0.67”

Fluorite with Quartz. Fluorite with Quartz.
Fluorite with Quartz
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Top
Top
Fluorite with Quartz.
 

NF86M5: Typical sample from the famous El Reguerín pocket, characterized by groups of cubic crystals of beautiful pale blue color with thin geometric violet zoning. The crystals are partially covered by small Quartz crystals, also partially covering the matrix.
La Viesca Mine, Reguerín pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (04/1994)

Specimen size: 12 × 9.2 × 7.3 cm = 4.72” × 3.62” × 2.87”

Main crystal size: 3.5 × 3.5 cm = 1.38” × 1.38”

Fluorite with Quartz
 

R26ECM3: A classic from the April 1994 find in the well known pocket of El Reguerín, in the La Collada district. Very transparent Fluorite crystals with an excellent and zoned blue color. With a thin layer of microcrystalline Quartz on some Fluorite faces.
La Viesca Mine, Reguerín pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (04/1994)

Specimen size: 13 × 8.2 × 6.3 cm = 5.12” × 3.23” × 2.48”

Main crystal size: 4.7 × 4.3 cm = 1.85” × 1.69”

Minor fluorescence long & short UV
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side
Side

La Collada Fluorite - Geoda del Tiro / Geoda Destartalada

In Spain there are two classic localities for quality Fluorite: Berbes and La Collada. At the latter, extraordinary specimens were found when the mine was worked in the 60s and 70s. Their color varied between blue and green, phantoms were frequently present, and the edges of the crystals were often modified. Between 1998 and 1999 with the aid of heavy equipment, they managed to remove the spoil from an area of the La Collada mine and find a number of reasonably sized pockets with good crystals which are violet or deep blue, and often have phantoms. From these finds we were able to present the following specimens.

Fluorite
Fluorite.
 

N8DD9: More transparent and brilliant than most other specimens from La Collada, and, as it lacks the typical modification to the edges, it looks more like one from Berbes – but it is from La Collada. Very nice as well!
La Viesca Mine, Tiro pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (11/1998)

Specimen size: 5.5 × 2.8 × 1.8 cm = 2.17” × 1.10” × 0.71”

Main crystal size: 1.5 × 1.5 cm = 0.59” × 0.59”

Fluorite
 

NP46L3: Big translucent beveled cubic crystal of Fluorite showing a violet color with blue internal reflections and marked zoning with more intense and violet shade. On matrix partially covered by small and brilliant Quartz crystals.
La Viesca Mine, Tiro pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (11/1998)

Specimen size: 6.7 × 6.5 × 9.3 cm = 2.64” × 2.56” × 3.66”

Main crystal size: 6.7 × 5.8 cm = 2.64” × 2.28”

Fluorite. Front
Front
Fluorite. Side
Side
Fluorite
Fluorite.
 

S164S: Floater, with multiple phantoms of different color.
La Viesca Mine, Tiro pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (11/1998)

Specimen size: 7 × 6 cm = 2.76” × 2.36”

Fluorite with Quartz
 

N27AL5: Cubic Fluorite crystals with polysynthetic growths that form tiled structures on the cube faces. We would like to emphasize the geometric color zoning, very intense, with colors that vary from the sky blue, a little greenish, in the external zones to the deepest violet, with a medium lilac zone, and bluish gray in the crystal core.
La Viesca Mine, Tiro pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (11/1998)

Specimen size: 9.5 × 8 × 7.3 cm = 3.74” × 3.15” × 2.87”

Main crystal size: 5.7 × 3.8 cm = 2.24” × 1.50”

Fluorite with Quartz. Front
Front
Fluorite with Quartz. Top
Top
Fluorite
Fluorite. Front
Front
Fluorite. Top
Top
 

N27HL5: Group of beveled cubic crystals with polysynthetic growths forming tiled structures on the cube faces. Crystals are translucent and their color varies between the greenish blue and lilac.
La Viesca Mine, Tiro pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (11/1998)

Specimen size: 11.4 × 8.2 × 6.5 cm = 4.49” × 3.23” × 2.56”

Fluorite
 

NE87S5: Aggregate of beveled cubic crystals of good size. They are transparent, deep violet and with geometrical zoning of their color. The sample is from the site known as the Geoda Destartalada (Destartalada pocket), one of the first found after the reopening of the mining works at the La Viesca-La Collada area, in 1999.
La Viesca Mine, Destartalada pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (03/1999)

Specimen size: 13.4 × 9 × 7.7 cm = 5.28” × 3.54” × 3.03”

Main crystal size: 7.7 × 4 cm = 3.03” × 1.57”

Fluorite. Front
Front
Fluorite. Top
Top
Fluorite with Quartz
Fluorite with Quartz.
Fluorite with Quartz. Fluorite with Quartz.
 

N90DD9: Crystals of purple Fluorite, with zoned phantoms, good shininess, and small crystals of Fluorite that have grown on the first generation of crystals. On top of that, in the center of the specimen there is an old scalenohedron of Calcite that has been completely replaced by Quartz and which stands upright and aerial on the Fluorite.
The specimen has been reviewed and published in the magazine ‘Bocamina’ on page 60 in number 19, year 2007.
La Viesca Mine, Tiro pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (11/1998)

Specimen size: 23.5 × 11.5 × 10.5 cm = 9.25” × 4.53” × 4.13”

Main crystal size: 1.5 × 1.2 cm = 0.59” × 0.47”


La Collada Fluorite - Reguerín 2 Pocket

During December of 2001 in the La Collada area of Asturias, Spain, a series of pockets of Fluorite was found. Physically they was found very close to another old find in the "El Reguerín" area, but luckily the color of these specimens is better than those from the previous find. More intense, with a spectacular color change from sky blue to mauve depending the kind of light. Their luster is better too.
As is quite common in the La Collada area these specimens show naturally modified corners.

Fluorite with Quartz
 

NN6L5: Group of transparent and beveled cubic Fluorite crystals. The main feature of this specimen is the slight curvature of the crystal bevels smoothing the crystal appearance. An interesting miniature.
La Viesca Mine, Reguerín II pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (12/2001)

Specimen size: 2.8 × 2.6 × 1.9 cm = 1.10” × 1.02” × 0.75”

Main crystal size: 1.8 × 1.2 cm = 0.71” × 0.47”

Fluorite with Quartz.
Fluorite
Fluorite.
 

NP9G8: Two main cubic crystals have a magnificent blue color. The degree of transparency varies due to the growing factors. The rhombohedron also appears, forming a bevel.
La Viesca Mine, Reguerín II pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (12/2001)

Specimen size: 3.5 × 3.3 × 5.5 cm = 1.38” × 1.30” × 2.17”

Main crystal size: 2,9 × 2.6 cm = 0.79” × 1.02”

Fluorite with Quartz
 

NR60G8: Strong zonation formed by two different growth phases. The first phase, deep violet in the inner crystal part, and a second one, outside, of a vivid blue color. The crystal sits on a minimal Quartz matrix.
La Viesca Mine, Reguerín II pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (12/2001)

Specimen size: 5 × 3.8 × 3.8 cm = 1.97” × 1.50” × 1.50”

Main crystal size: 3.8 × 3.2 cm = 1.50” × 1.26”

Fluorite with Quartz.
Fluorite
Fluorite.
 

NP58D9: It has a more intense color than the other specimens and has a very nice architecture. A very esthetic floater.
La Viesca Mine, Reguerín II pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (12/2001)

Specimen size: 5.5 × 4 × 3.1 cm = 2.17” × 1.57” × 1.22”

Main crystal size: 1.5 × 1.3 cm = 0.59” × 0.51”

Fluorite on Quartz
 

NE58G8: Color and luster are, maybe, less intense than usual but compensated by the esthetical aspect of the piece, aerial on a fine matrix of Quartz, and the shape of the faces, that are clear on their beveled edges.
La Viesca Mine, Reguerín II pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (12/2001)

Specimen size: 7.6 × 6.5 × 2.5 cm = 2.99” × 2.56” × 0.98”

Main crystal size: 1.2 × 1.2 cm = 0.47” × 0.47”

Fluorite on Quartz. Fluorite on Quartz.
Fluorite with Quartz
Fluorite with Quartz. Fluorite with Quartz.
 

ND10AD3: Druse, on a Quartz matrix, of cubic Fluorite crystals with polycrystalline growths on their faces. They are transparent, bright and have a violet-blue color.
La Viesca Mine, Reguerín II pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (12/2001)

Specimen size: 8.3 × 5.2 × 2.5 cm = 3.27” × 2.05” × 0.98”

Main crystal size: 1.1 × 0.8 cm = 0.43” × 0.31”

Quartz after Calcite
 

NM61D9: Let’s see: some scalenohedrons of Calcite once existed in the pocket. They are now long gone and all that remains is the form of the faces of the old Calcite crystals that have been preserved by the coating of Quartz that formed on them. It is a floater with a very clean appearance and great originality. It is the most spectacular of the specimens of this type that came out of this find.
The specimen has been reviewed and published in the magazine ‘Bocamina’ on page 62 in number 19, year 2007.
La Viesca Mine, Reguerín II pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (12/2001)

Specimen size: 11.5 × 9.5 × 5 cm = 4.53” × 3.74” × 1.97”

Quartz after Calcite. Front
Front
Quartz after Calcite. Rear
Rear

La Collada Fluorite - Tres de La Collada

At the end of the month of May 2003 in the La Collada mining area they found a superb pocket the size of at least two cars and full of crystallized specimens. This pocket was named "Tres de La Collada" for the name of the area where it was found and it supplied more than 6000 specimens. That seems like a lot of specimens, but as is usual in this kind of find, only a few of this huge total had "collector quality". Well connected with all main Spanish finds, we went there immediately and we made a significant selection of our favorite specimens.

In some cases (the bluer ones) the shape is very similar to the famous old classic La Collada Fluorite, with naturally modified corners. In other cases (the more violet ones) they are completely different from the others found at this locality in the past. The white Quartz matrix in a few specimens completes the fame of the find.

As usual with La Collada classic specimens, the surface of the crystals is not that brilliant, but rather slightly glazed. This is due to a second generation of globular Fluorite (by the way very similar to the new Indian ones) partially covering the surface of the crystals. When viewed with a magnifying glass it is spectacular as it looks like sea waves.

Please note that all the specimens are shown with two kind of lights: fluorescent or day light and bulb light. The color depends so much on which of these two light sources is used that we preferred to display them in the two different lights.

Fluorite
Fluorite. neon light (day light)
neon light (day light)
Fluorite. bulb light
bulb light
 

NA26D5: Sharp, with a very good display form, this specimen shows on the back if it minor dissolution Fluorite crystals around the relict of the matrix where the specimen grew.
La Viesca Mine, Tres de la Collada pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (05/2003)

Specimen size: 6.2 × 4 × 4.2 cm = 2.44” × 1.57” × 1.65”

Main crystal size: 3 × 3 cm = 1.18” × 1.18”

Fluorite
 

NK6C9: A hyper "new classic" with its phantoms, naturally modified corners, and a floater with contacts on its rear.
La Viesca Mine, Tres de la Collada pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (05/2003)

Specimen size: 6.5 × 4.8 × 4 cm = 2.56” × 1.89” × 1.57”

Fluorite. fluorescent light (day light)
fluorescent light (day light)
Fluorite. bulb light
bulb light
Fluorite
Fluorite. fluorescent light (day light)
fluorescent light (day light)
Fluorite. bulb light
bulb light
 

NQ96G8: Beautiful group of crystals with an excellent color and luster. The last growth phase formed divergent crystals which seem, in some edges, to be nearby isolated.
The specimen has been reviewed and published in the magazine ‘Bocamina’ on page 59 in number 19, year 2007.
La Viesca Mine, Tres de la Collada pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (05/2003)

Specimen size: 9.2 × 8 × 4.8 cm = 3.62” × 3.15” × 1.89”

Main crystal size: 3.1 × 2.7 cm = 1.22” × 1.06”

Fluorite with Quartz
 

ND76D5: The form is so beautiful. The crystals display so well and contrast with the Quartz matrix! Plus all of them are complete at the rear as well..
This specimen was photographed and published in the magazine "Lapis" number 7-8 / 2013, page 48
La Viesca Mine, Tres de la Collada pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (05/2003)

Specimen size: 11 × 8 × 6.5 cm = 4.33” × 3.15” × 2.56”

Main crystal size: 4 × 4 cm = 1.57” × 1.57”

Fluorite with Quartz. neon light (day light)
neon light (day light)
Fluorite with Quartz. bulb light
bulb light
Fluorite with Quartz
Fluorite with Quartz. neon light (day light)
neon light (day light)
Fluorite with Quartz. bulb light
bulb light
Fluorite with Quartz. neon light (day light)
neon light (day light)
Fluorite with Quartz. bulb light
bulb light
 

NE69AC8: Irregular aggregate of cubic crystals with polycrystalline growths on their faces. They are transparent, have very well defined geometrical color zones and they have a very intense violet color. On a matrix partially coated by small Quartz crystals.
La Viesca Mine, Tres de la Collada pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (05/2003)

Specimen size: 14.5 × 10.8 × 11.8 cm = 5.71” × 4.25” × 4.65”

Main crystal size: 3.5 × 3.1 cm = 1.38” × 1.22”

Fluorite with Quartz and Calcite
Fluorite with Quartz and Calcite  

EF53AI8: Druse of Fluorite crystals neatly cube shaped, transparent, very bright and very well defined geometric color zoning, with color bands varying from sky blue to purple and to lilac. Partially coated by small Quartz crystals.
The sample is from the Raúl Sanabria collection whose label we will send to the buyer.
La Viesca Mine, Tres de la Collada pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (01/2004)

Specimen size: 14.8 × 9.7 × 5.4 cm = 5.83”

Main crystal size: 3 × 2.7 cm = 1.18” × 1.06”

Former collection of Raúl Sanabria
Fluorite with Quartz and Calcite. Fluorite with Quartz and Calcite.
Fluorite with Quartz and Calcite. Fluorite with Quartz and Calcite.
Fluorite with Quartz
Fluorite with Quartz. neon light (day light)
neon light (day light)
Fluorite with Quartz. bulb light
bulb light
 

NZ47D1: Extremely large, this showy specimen is the best of the find in this size. I think that the photo says everything, but let me tell you that the form it is just wonderful, the color is very intense, and the whole specimen very spectacular when you have it in front of you!.
The specimen has been reviewed and published in the magazine ‘Bocamina’ on page 61 in number 19, year 2007.
La Viesca Mine, Tres de la Collada pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (05/2003)

Specimen size: 29 × 15 × 9 cm = 11.42” × 5.91” × 3.54”

Main crystal size: 4 × 3 cm = 1.57” × 1.18”


La Collada Fluorite - Coquera de la Calcita Fluorite

If you want to know more about "Coquera de la Calcita" Fluorite please follow this link

Fluorite with Quartz
 

NJ11F2: The cubic crystallization, the color, and the internal zones are all good reasons to like this specimen and the general esthetics is enhanced by the matrix covered in water-clear Quartz.
The specimen has been reviewed and published in the magazine ‘Bocamina’ on page 70 in number 19, year 2007.
La Viesca Mine, Coquera de la Calcita pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (01/2004)

Specimen size: 5.7 × 4.8 × 4 cm = 2.24” × 1.89” × 1.57”

Main crystal size: 3.7 × 3 cm = 1.46” × 1.18”

Fluorite with Quartz. neon light (day light)
neon light (day light)
Fluorite with Quartz. bulb light
bulb light
Fluorite with Calcite
Fluorite with Calcite.
 

NT86T0: Group of cubic crystals with intense luster and a very deep color, violet with bluish shades, and geometrical color zoning on the bevels. They are on a group of white scalenohedral crystals of Calcite. The sample is from material compiled for years by Fernando Brugos, former owner of the La Viesca claim. This material has been accurately documented, regarding the different pockets as well as the dates of the finds.
La Viesca Mine, Coquera de la Calcita pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (01/2004)

Specimen size: 6 × 4 × 3.8 cm = 2.36” × 1.57” × 1.50”

Main crystal size: 2 × 1.5 cm = 0.79” × 0.59”

Former Fernando Brugos
Fluorite with Quartz
 

NV36W5: Aggregate of cubic crystals beveled by dodecahedron faces. They have a very deep color that masks their transparency and the geometrical color zoning, visible under a strong light.
La Viesca Mine, Coquera de la Calcita pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (01/2004)

Specimen size: 6.9 × 6.3 × 3.2 cm = 2.72” × 2.48” × 1.26”

Main crystal size: 2.6 × 2.4 cm = 1.02” × 0.94”

Former Fernando Brugos
Fluorite with Quartz.
Fluorite with Quartz
Fluorite with Quartz. neon light (day light)
neon light (day light)
Fluorite with Quartz. bulb light
bulb light
 

NM96F2: The color is great in this one. The crystals are dominated by blue zones that are enhanced by the transparency. The slight covering of the surface by Quartz adds an extra touch.
La Viesca Mine, Coquera de la Calcita pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (01/2004)

Specimen size: 7 × 7 × 4.5 cm = 2.76” × 2.76” × 1.77”

Fluorite
 

NX68T0: Group of cubic crystals with echeloned bevels. They are very bright, very transparent and have violet blue color with very well defined geometrical color zones. The sample is from material compiled for years by Fernando Brugos, former owner of the La Viesca claim. This material has been accurately documented, regarding the different pockets as well as the dates of the finds.
La Viesca Mine, Coquera de la Calcita pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (01/2004)

Specimen size: 8.4 × 7.4 × 4.2 cm = 3.31” × 2.91” × 1.65”

Main crystal size: 4 × 3.8 cm = 1.57” × 1.50”

Former Fernando Brugos
Fluorite.
Fluorite with Calcite and Quartz
Fluorite with Calcite and Quartz. Fluorite with Calcite and Quartz.
 

NC30T0: Group of cubic crystals of Fluorite with echeloned bevels. They are very bright, very transparent and have violet blue color with geometrical color zoning. They are on matrix with crystals of Quartz and white scalenohedrons of Calcite. The sample is from material compiled for years by Fernando Brugos, former owner of the La Viesca claim. This material has been accurately documented, regarding the different pockets as well as the dates of the finds.
La Viesca Mine, Coquera de la Calcita pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (01/2004)

Specimen size: 12.4 × 9.2 × 4.4 cm = 4.88” × 3.62” × 1.73”

Main crystal size: 2.1 × 2 cm = 0.83” × 0.79”

Former Fernando Brugos
Calcita with Fluorite and Quartz
 

NG46F7: Calcite is not so common in this Quarry. In this case we have a quite large, rounded crystal of Calcite on the typical matrix of Fluorite and Quartz, although in this case the Fluorite is colorless. Curiously the Calcite is intensely yellow-orange near the rear, almost certainly due to the presence of oxides that were in the iron rich fluids from which it formed.
La Viesca Mine, Coquera de la Calcita pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (01/2004)

Specimen size: 12.5 × 10.5 × 8.5 cm = 4.92” × 4.13” × 3.35”

Main crystal size: 6.6 × 5.2 cm = 2.60” × 2.05”

Calcita with Fluorite and Quartz.
Calcita with Fluorite and Quartz.

La Collada Fluorite - "La Falla"

If you want to know more about "La Falla" Fluorite please follow this link

Fluorite with Quartz
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side
Side
 

NL68T8: Group of cubic crystals with the edges widely beveled by echeloned growths. They have a clear lilac color and are transparent, with geometrical color zoning showing a deeper internal color and they are on a matrix of crystallized Quartz. The sample is from material collected for years by Fernando Brugos, former owner of the La Viesca claim. This material has been accurately documented, the different pockets as well as the dates of the finds have been recorded.
La Viesca Mine, La Falla pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (08/2004)

Specimen size: 10.5 × 7.2 × 4 cm = 4.13” × 2.83” × 1.57”

Main crystal size: 4.5 × 3.8 cm = 1.77” × 1.50”


La Collada Fluorite - Las Calcitas pocket

If you want to know more about "Geoda de Las Calcitas" Fluorite please follow this link

Fluorite with Calcite
 

NM29T8: Big cubic crystal beveled by the dodecahedron, transparent and with geometrical color zoning, with color varying between intense blue, lilac and violet. The sample is from material collected for years by Fernando Brugos, former owner of the La Viesca claim. This material has been accurately documented, the different pockets as well as the dates of the finds have been recorded.
La Viesca Mine, Las Calcitas pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (02-05/2007)

Specimen size: 10 × 8.4 × 5.8 cm = 3.94” × 3.31” × 2.28”

Main crystal size: 8.6 × 8.1 cm = 3.39” × 3.19”

Fluorite with Calcite. Front
Front
Fluorite with Calcite. Light behind
Light behind

La Collada Fluorite - La Negrina pocket

If you want to know more about "Coquera La Negrina" Fluorite please follow this link

Fluorite with Quartz
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Light behind
Light behind
 

NR66T8: Group of cubic crystals beveled by the dodecahedron. They are transparent, bright and have a very deep and intense bluish-violet color. The sample is from material collected for years by Fernando Brugos, former owner of the La Viesca claim. This material has been accurately documented, the different pockets as well as the dates of the finds have been recorded.
La Viesca Mine, La Negrina pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (03-04/2006)

Specimen size: 7.3 × 5.5 × 3.8 cm = 2.87” × 2.17” × 1.50”

Main crystal size: 2.7 × 2.4 cm = 1.06” × 0.94”

Fluorite
 

NC47Z2: Translucent crystals with a very deep and intense color, with smooth cubic faces beveled by the dodecahedron with polycrystalline growths.
La Viesca Mine, La Negrina pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (03-04/2006)

Specimen size: 9.4 × 7.5 × 7.6 cm = 3.70” × 2.95” × 2.99”

Main crystal size: 2.6 × 2.2 cm = 1.02” × 0.87”

Former Fernando Brugos
Fluorite. Front
Front
Fluorite. Light behind
Light behind
Fluorite with Quartz
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Light behind
Light behind
Fluorite with Quartz.
 

NB87Z2: Very aerial group of translucent crystals with very deep and intense color, with smooth cubic faces beveled by the dodecahedron that has polycrystalline growths. The crystals are on a matrix coated by Quartz crystals, some of them doubly terminated.
La Viesca Mine, La Negrina pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (03-04/2006)

Specimen size: 10.5 × 8.6 × 5.5 cm = 4.13” × 3.39” × 2.17”

Main crystal size: 3.7 × 3.2 cm = 1.46” × 1.26”

Former Fernando Brugos
Fluorite
 

NK30Z2: Group, on matrix, of transparent, very bright crystals with a very deep and intense color and showing cube faces beveled by the dodecahedron.
La Viesca Mine, La Negrina pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (03-04/2006)

Specimen size: 11.7 × 9.6 × 3.4 cm = 4.61” × 3.78” × 1.34”

Main crystal size: 1.7 × 1.5 cm = 0.67” × 0.59”

Former Fernando Brugos
Fluorite. Fluorite.
Fluorite with Calcite
Fluorite with Calcite. Fluorite with Calcite.

Fluorescent light (daylight)
 

NRM93AP6: Druse, on matrix, of Fluorite crystals with a cubic habit beveled by dodecahedron faces, transparent, with good luster and a very deep color, even more intense around the edges. With a small scalenohedral crystal of Calcite.
La Viesca Mine, La Negrina pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (03-04/2006)

Specimen size: 20.3 × 11.2 × 10.3 cm = 7.99” × 4.41” × 4.06”

Main crystal size: 1.7 × 1.7 cm = 0.67” × 0.67”

Fluorite with Quartz
 

NA96AE1: Druse of cubic crystals on matrix. The crystals, beveled by dodecahedral faces, are transparent, very bright, have a very intense violet color with geometric color zoning which is very well defined with deeper shades in the center. We note the quality and the condition of the sample, uncommon in such large pieces. One of the best samples from the cavity.
La Viesca Mine, La Negrina pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (03-04/2006)

Specimen size: 23.5 × 17.5 × 6.5 cm = 9.25” × 6.89” × 2.56”

Main crystal size: 2.4 × 2.2 cm = 0.94” × 0.87”

Fluorite with Quartz. Bulb light
Bulb light
Fluorite with Quartz. Day light
Day light
Fluorite with Quartz.

La Collada Fluorite - "El Furaco"

If you want to know more about "El Furaco" Fluorite please follow this link

Fluorite with Calcite and Chalcopyrite
Fluorite with Calcite and Chalcopyrite. Front
Front
Fluorite with Calcite and Chalcopyrite. Side
Side
 

NM87T8: Group of cubic crystals of Fluorite beveled by the dodecahedron. They are very bright, with a very deep color and good transparency that show a geometrical color zoning parallel to the edges. With very small bright crystals of Chalcopyrite peppering the Fluorite faces and on a matrix of crystallized Calcite. The sample is from material collected for years by Fernando Brugos, former owner of the La Viesca claim. This material has been accurately documented, the different pockets as well as the dates of the finds have been recorded.
La Viesca Mine, El Furaco pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (20/08/2009)

Specimen size: 8.9 × 6.8 × 5.7 cm = 3.50” × 2.68” × 2.24”

Main crystal size: 3.6 × 3.4 cm = 1.42” × 1.34”


La Collada Fluorite - Galería 49

If you want to know more about "Galería 49" Fluorite please follow this link

Fluorite with Quartz
 

NX37T0: Group of transparent cubic crystals. They are very bright, of very intense sky blue color and are with small crystals of Quartz. The sample is from material compiled for years by Fernando Brugos, former owner of the La Viesca claim. This material has been accurately documented, regarding the different pockets as well as the dates of the finds.
La Viesca Mine, Galería 49 pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (09-12/2009)

Specimen size: 6.9 × 6 × 4.7 cm = 2.72” × 2.36” × 1.85”

Main crystal size: 3.2 × 2.7 cm = 1.26” × 1.06”

Former Fernando Brugos

Minor fluorescence long & short UV
Fluorite with Quartz.
Fluorite with Quartz
Fluorite with Quartz. Fluorite with Quartz.
 

NP89Z2: Aggregate of transparent, very bright crystals with a very intense sky blue color. They are formed by the faces of the cube beveled by the dodecahedron. They are on matrix, with small Quartz crystals.
La Viesca Mine, Galería 49 pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (09-12/2009)

Specimen size: 15.5 × 10.2 × 6 cm = 6.10” × 4.02” × 2.36”

Main crystal size: 2.3 × 2.2 cm = 0.91” × 0.87”

Minor fluorescence short UV

Former Fernando Brugos

La Collada Fluorite - Las Monjas pocket

If you want to know more about "Geoda de Las Monjas" Fluorite please follow this link

Fluorite with Quartz
 

NP92AK0: Group of cubic crystals with polycrystalline growths on the surface of the faces, between transparent and translucent, bright with an extraordinary blue color that is very intense and deep and which turns to lilac in some areas. On a matrix of Quartz crystal coatings of former Calcite crystals as frequently happens in the specimens of this particular pocket.
La Viesca Mine, Las Monjas pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (05/2010)

Specimen size: 12.2 × 6.2 × 4.4 cm = 4.80” × 2.44” × 1.73”

Main crystal size: 6.2 × 6 cm = 2.44” × 2.36”

Fluorite with Quartz. Front
Front
Fluorite with Quartz. Top
Top
Fluorite with Quartz
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side
Side
 

NC69AK0: Group of cubic crystals, one of them clearly dominant, with polycrystalline growths on the surface of the faces, between transparent and translucent, bright, with a very intense deep blue color and with small coatings of Quartz crystals.
La Viesca Mine, Las Monjas pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (05/2010)

Specimen size: 12.3 × 7.5 × 6.8 cm = 4.84” × 2.95” × 2.68”

Main crystal size: 6.7 × 5.8 cm = 2.64” × 2.28”

Fluorite on epimorphic Quartz after Calcite

Fluorescent light (daylight)
 

NTB96AO2: Group of Fluorite crystals with polycrystalline growths on the surface of the faces, between transparent and translucent, with good luster and an intense color, with marked geometric color zoning on the edges,and on a matrix of white Quartz epimorphs after older crystals of Calcite that have disappeared.
La Viesca Mine, Las Monjas pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (05/2010)

Specimen size: 21.1 × 13.2 × 8 cm = 8.31” × 5.20” × 3.15”

Main crystal size: 3.5 × 2 cm = 1.38” × 0.79”

Fluorite on epimorphic Quartz after Calcite.

La Collada Fluorite - La Viesca

Fluorite
Fluorite.

Fluorescent light (daylight)
 

TVX96AP4: Fluorite crystal with a cubic habit, transparent, lustrous, and with a very sharp geometric phantom marked by the blue and violet color boundary.
This specimen comes from the Miguel David Martínez collection (number 773), whose label we will send to the buyer.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2003)

Specimen size: 2.5 × 2.3 × 2.3 cm = 0.98” × 0.91” × 0.91”

Former collection of Miguel David Martínez
Fluorite
 

NV26AM1: Group of Fluorite crystals with cubic habit and polycrystalline formations on the faces, transparent, very lustrous and with a uniform blue color with violet tones.
The specimen comes from the Miguel David Martínez collection (nş. 521) whose label we will send to the buyer.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2016)

Specimen size: 4.2 × 3.4 × 2.7 cm = 1.65” × 1.34” × 1.06”

Main crystal size: 2 × 1.7 cm = 0.79” × 0.67”

Former collection of Miguel David Martínez
Fluorite. Fluorite.
Fluorite
Fluorite. Fluorite.

Fluorescent light (daylight)
 

NTV68AO2: Group of Fluorite crystals with steps and polycrystalline growths, between transparent and translucent, with good luster and a very deep and intense blue color with violet tones.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain

Specimen size: 4.6 × 4.5 × 3 cm = 1.81” × 1.77” × 1.18”

Main crystal size: 2.4 × 1.8 cm = 0.94” × 0.71”

Fluorite with Quartz

Fluorescent light (daylight)
 

NBM70AO5: Group of cubic crystals, one of them clearly dominant, with polycrystalline growths on the edges, very transparent, with good luster and a light blue color on the peripheral areas and with different shades of intense violet, with geometric zoning that forms a phantom growth.
An excellent Spanish classic.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (±2015)

Specimen size: 4.9 × 4.9 × 3.3 cm = 1.93” × 1.93” × 1.30”

Main crystal size: 4 × 3.4 cm = 1.57” × 1.34”

Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side
Side
Fluorite with Sphalerite and Quartz
Fluorite with Sphalerite and Quartz. Fluorite with Sphalerite and Quartz.
Fluorite with Sphalerite and Quartz.
 

NB64AL9: Very sharp Fluorite crystals that are completely transparent, with extraordinary luster, a light lilac color and with small crystals of Sphalerite. On matrix with small Quartz crystals. The specimen is unusual for the presence of transparent and clear colored Sphalerite.
It comes from the Miguel David Martínez collection (number 528), whose label we will send to the buyer.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2016)

Specimen size: 5 × 3.3 × 2.1 cm = 1.97” × 1.30” × 0.83”

Main crystal size: 1.3 × 1 cm = 0.51” × 0.39”

Former collection of Miguel David Martínez
Fluorite with Quartz

Fluorescent light (daylight)
 

TBB26AP9: Fine, very aerial group of Fluorite crystals with very marked polycrystalline growths, transparent, shiny green with bluish tones, and with a small matrix with Quartz microcrystals. High quality for the locality.
The specimen comes from the collection of Miguel David Martínez Pérez (number 2400), whose label we will send to the buyer.
La Sirena cut, La Collada mining area, La Collada, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2014)

Specimen size: 5.2 × 2.5 × 2.4 cm = 2.05” × 0.98” × 0.94”

Main crystal size: 1.9 × 1.6 cm = 0.75” × 0.63”

Former collection of Miguel David Martínez
Fluorite with Quartz.
Fluorite
Fluorite.
Fluorite.

Fluorescent light (daylight)
Fluorite
 

TC2240NNB: Group of Fluorite crystals with steps and polycrystalline growths, translucent, with good luster and a very deep and intense color.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (±2015)

Specimen size: 5.6 × 4.2 × 3.2 cm = 2.20” × 1.65” × 1.26”

Main crystal size: 1.4 × 1.2 cm = 0.55” × 0.47”

Fluorite with Chalcopyrite and Calcite
Fluorite with Chalcopyrite and Calcite  

TC2220NMR: Group of Fluorite crystals with steps and polycrystalline growths, transparent, with good luster and a sky-blue color with violet tones, and with small Chalcopyrite crystals on their faces as well as a Calcite scalenohedron.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (±2015)

Specimen size: 5.7 × 5.1 × 2.8 cm = 2.24” × 2.01” × 1.10”

Main crystal size: 1.4 × 1.4 cm = 0.55” × 0.55”

Fluorite with Chalcopyrite and Calcite. Front
Front
Fluorite with Chalcopyrite and Calcite. Rear
Rear
Fluorite on Quartz (variety red quartz)
Fluorite on Quartz (variety red quartz). Fluorite on Quartz (variety red quartz).

Fluorescent light (daylight)
 

NXM37AO7: Group of Fluorite crystals, beveled by the dodecahedron, transparent, lustrous and practically water-clear, contrasting with the coatings of hematoidal Quartz crystals in the matrix.
This specimen has unusual characteristics for La Viesca Fluorite, and comes from the collection of Miguel David Martínez (number 865), whose label we will send to the buyer.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain

Specimen size: 5.8 × 3.5 × 2.7 cm = 2.28” × 1.38” × 1.06”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”

Former collection of Miguel David Martínez
Fluorite
 

NA90AL5: Two cubic Fluorite crystals beveled by the rhombododecahedron, very clean and transparent, bright and with geometric color zoning.
The specimen comes from the Miguel David Martínez collection (No. 526), whose label we will send to the buyer.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2016)

Specimen size: 6 × 6 × 4.2 cm = 2.36” × 2.36” × 1.65”

Main crystal size: 4 × 3.5 cm = 1.57” × 1.38”

Former collection of Miguel David Martínez
Fluorite. Front
Front
Fluorite. Front
Front
Fluorite. Side
Side
Fluorite. Side
Side
Fluorite with Quartz
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Light behind
Light behind
 

NF37AL4: Floater Fluorite crystal, with cubic crystal forms and a polycrystalline rhombododecahedral bevel and recrystallizations on the back, between transparent and translucent, with fine Quartz coatings. The Fluorite exhibits geometric color zoning between lilac and blue, much more intense in the core of the crystal.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2007)

Specimen size: 6.4 × 5.7 × 3.9 cm = 2.52” × 2.24” × 1.54”

Fluorite with Quartz
 

NR47AL4: Group of Fluorite crystals beveled by rhombododecahedron faces, transparent, shiny, blue with lilac tones, geometric color zoning and small white Quartz coatings.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2015)

Specimen size: 6.7 × 4.8 × 3.3 cm = 2.64” × 1.89” × 1.30”

Main crystal size: 2.6 × 2.4 cm = 1.02” × 0.94”

Fluorite with Quartz. Front
Front
Fluorite with Quartz. Light behind
Light behind
Fluorite with Quartz. Side
Side
Fluorite with Quartz
Fluorite with Quartz. Fluorite with Quartz.

Fluorescent light (daylight)
 

NBT89AO4: Group of Fluorite crystals beveled by dodecahedron faces with polycrystalline growths, transparent and with a dominant blue color, with well-defined geometric zoning by shades of varying intensity between blue and violet. On a matrix of Quartz crystals.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2018)

Specimen size: 6.8 × 6.2 × 4.7 cm = 2.68” × 2.44” × 1.85”

Main crystal size: 2.8 × 2.7  cm = 1.10” × 1.06”

Fluorite

Fluorescent light (daylight)
 

NMB89AO4: Floater group of Fluorite crystals beveled by dodecahedron faces with polycrystalline growths, transparent and with a dominant blue color, with well-defined geometric zoning by shades of varying intensity between blue and violet.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain

Specimen size: 7 × 6 × 3.2 cm = 2.76” × 2.36” × 1.26”

Main crystal size: 2.7 × 2 cm = 1.06” × 0.79”

Fluorite. Fluorite.
Fluorite
Fluorite. Fluorite.

Fluorescent light (daylight)
 

NTB69AO7: Group of transparent, lustrous, purple Fluorite crystals, geometrically zoned with much deeper color around the edges. Very aesthetic.
The specimen comes from the collection of Miguel David Martínez (number 841), whose label we will send to the buyer.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain

Specimen size: 7 × 6.4 × 4.3 cm = 2.76” × 2.52” × 1.69”

Main crystal size: 3.1 × 3.1 cm = 1.22” × 1.22”

Former collection of Miguel David Martínez
Fluorite with Quartz
 

NT98AL4: Slightly elongated Fluorite crystal, with marked polycrystalline growths, translucent, with an intense sky-blue color and covered with small Quartz crystals.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2010)

Specimen size: 7.1 × 5.9 × 5.9 cm = 2.80” × 2.32” × 2.32”

Minor fluorescence long & short UV
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side
Side
Fluorite with Quartz. Side
Side
Fluorite with Quartz. Light behind
Light behind
Fluorite with Quartz
Fluorite with Quartz.
Fluorite with Quartz.

Fluorescent light (daylight)
Fluorite with Quartz
 

SV290TFF: Two main groups of Fluorite crystals clearly beveled by the faces of the dodecahedron,
with polycrystalline growths in one of them, transparent and with a dominant bluish color, hosted in a limestone rock matrix -known as “Mountain limestone”- totally carpeted by small water-clear Quartz crystals. From the prolific, but already closed, La Viesca mine.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain

Specimen size: 7.3 × 5.8 × 5.8 cm = 2.87” × 2.28” × 2.28”

Main crystal size: 3.2 × 2.5 cm = 1.26” × 0.98”

Former collection of Miguel David Martínez
Fluorite

Fluorescent light (daylight)
 

NEX68AP3: Group of Fluorite crystals formed by smooth cube and dodecahedron faces, with fine polycrystalline growths, very transparent, lustrous and violet in color with bluish areas.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain

Specimen size: 7.3 × 5.9 × 6.2 cm = 2.87” × 2.32” × 2.44”

Fluorite. Front
Front
Fluorite. Light behind
Light behind
Fluorite with Quartz
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side
Side
Fluorite with Quartz. Side
Side
 

NG89AL5: Crystals with a cubic habit with polycrystalline surfaces and staggered faces, transparent, bright, with a very intense color between lilac and mauve, on matrix, with Quartz crystals.
This piece comes from the Miguel David Martínez collection (no. 442), whose label we will send to the buyer.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2015)

Specimen size: 7.4 × 5.2 × 4.8 cm = 2.91” × 2.05” × 1.89”

Main crystal size: 3.1 × 3 cm = 1.22” × 1.18”

Former collection of Miguel David Martínez
Fluorite with Quartz
 

NB89AL4: Group of Fluorite crystals beveled by thin rhombododecahedral faces, transparent, brilliant and of a very intense blue color with violet tones. An excellent Spanish classic.
This specimen has been published on the Mineralogical Record´s web page, in the ‘What's New’ section, report 56, June 6, 2020 edition, page 2
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2009)

Specimen size: 8.2 × 7.8 × 5 cm = 3.23” × 3.07” × 1.97”

Main crystal size: 3.2 × 2.7 cm = 1.26” × 1.06”

Minor fluorescence long & short UV
Fluorite with Quartz. Fluorite with Quartz.
Fluorite
Fluorite. Front
Front
Fluorite. Light behind
Light behind
Fluorite. Side
Side
 

NR99AL4: Fluorite crystal with marked polycrystalline and stepped growths, translucent and with a very intense light blue color.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2010)

Specimen size: 8.4 × 7.7 × 6.6 cm = 3.31” × 3.03” × 2.60”

Minor fluorescence long & short UV
Fluorite with Quartz
 

NJ27AM5: Very elongated Fluorite crystals rich in polycrystalline surfaces and with geometric contacts on the back. Translucent, with bright luster and an intense light blue color, on matrix, with white Quartz crystals.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2010)

Specimen size: 8.6 × 7 × 4.2 cm = 3.39” × 2.76” × 1.65”

Main crystal size: 4.2 × 1.6 cm = 1.65” × 0.63”

Fluorite with Quartz. Fluorite with Quartz.
Fluorite
Fluorite. Front
Front
Fluorite. Side
Side
Fluorite.

Fluorescent light (daylight)
 

NNL99AN9: Druse of transparent Fluorite crystals, with a very bright luster and an extraordinarily vivid blue color with geometric zoning of an intense violet color. This specimen, a Spanish classic, comes from the Miguel David Martínez collection (number 819) whose label we will send to the buyer.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (±2017)

Specimen size: 8.8 × 5.1 × 5.4 cm = 3.46” × 2.01” × 2.13”

Main crystal size: 3.2 × 3.2 cm = 1.26” × 1.26”

Former collection of Miguel David Martínez
Fluorite

Fluorescent light (daylight)
 

NMX14AO0: Very aerial growth of Fluorite crystals with the cube clearly beveled by rhombododecahedron crystal forms, transparent, with good luster and a uniform blue color, with violet hues and fine coatings of Pyrite microcrystals.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2018)

Specimen size: 9 × 5.7 × 3.9 cm = 3.54” × 2.24” × 1.54”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”

Fluorite. Fluorite.
Fluorite with Quartz and Calcite
Fluorite with Quartz and Calcite. Fluorite with Quartz and Calcite.
 

GP87AK0: Crystals of cubic habit beveled by the dodecahedron, between transparent and translucent, bright with an uniform lilac color and perched in a matrix covered by transparent crystals of Quartz. A classic Asturian specimen from the Casado Margolles collection (number AC FALO 10) whose label is attached to the piece.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (±1992)

Specimen size: 9 × 6.2 × 7.4 cm = 3.54” × 2.44” × 2.91”

Main crystal size: 2.2 × 1.8 cm = 0.87” × 0.71”

Former collection of Casado Margolles
Fluorite
 

ND68AL3: Group of cubic crystals strongly beveled on the rhombododecahedron faces forming polycrystalline growths. The crystals are transparent violet-blue with geometric zoning of more intense tones in the center of the crystal.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain

Specimen size: 9.4 × 6.5 × 3.1 cm = 3.70” × 2.56” × 1.22”

Main crystal size: 5.6 × 4.6 cm = 2.20” × 1.81”

Fluorite. Front
Front
Fluorite. Light behind
Light behind
Fluorite.
Fluorite with Quartz
Fluorite with Quartz. Fluorite with Quartz.

Fluorescent light (daylight)
 

NPP68AQ1: Druse of very sharp Fluorite crystals with Quartz, transparents, extraordinarily lustrous and with a delicate sky-blue color.
Found in recent workings of the La Viesca Mine.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2022)

Specimen size: 9.5 × 7.4 × 4.6 cm = 3.74” × 2.91” × 1.81”

Main crystal size: 1.3 × 1.1 cm = 0.51” × 0.43”

Minor fluorescence long & short UV
Fluorite with Quartz

Fluorescent light (daylight)
 

NFB89AP3: Isolated Fluorite crystal formed by smooth cube and dodecahedron forms with fine polycrystalline growths, between transparent and translucent, lustrous and violet with bluish areas. Like the fluorites from Shangbao, but Spanish! 😉
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (±2008)

Specimen size: 9.6 × 6.4 × 3.9 cm = 3.78” × 2.52” × 1.54”

Main crystal size: 5.2 × 5 cm = 2.05” × 1.97”

Fluorite with Quartz. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Fluorite with Quartz. Front with light behind / Photo: Joaquim Callén
Front with light behind / Photo: Joaquim Callén
Fluorite with Quartz. Side / Photo: Joaquim Callén
Side / Photo: Joaquim Callén
Fluorite with Quartz. Side / Photo: Joaquim Callén
Side / Photo: Joaquim Callén
Fluorite with Quartz
Fluorite with Quartz. Fluorite with Quartz.

Fluorescent light (daylight)
 

MBR67AP7: Druse of Fluorite crystals with very marked polycrystalline growths, transparent, with very bright luster and an intense blue-violet color, bordered by small water-clear crystals of Quartz.
The specimen comes from the Miguel David Martínez collection (number 896), whose label we will send to the buyer.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2019)

Specimen size: 9.7 × 6.4 × 2.8 cm = 3.82” × 2.52” × 1.10”

Main crystal size: 1 × 1 cm = 0.39” × 0.39”

Former collection of Miguel David Martínez
Fluorite

Fluorescent light (daylight)
 

NZR50AN7: Group of cubic crystals with staggered bevels on the edges, lustrous, very transparent, with an intense purplish blue color and with very marked geometric color zoning.
This piece comes from the Miguel David Martínez collection (number 818), whose label we will send to the buyer.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (±2016)

Specimen size: 9.7 × 8.6 × 6.4 cm = 3.82” × 3.39” × 2.52”

Main crystal size: 8.4 × 4.9 cm = 3.31” × 1.93”

Former collection of Miguel David Martínez
Fluorite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Fluorite. Side / Photo: Joaquim Callén
Side / Photo: Joaquim Callén
Fluorite with Quartz
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side
Side
Fluorite with Quartz.

Fluorescent light (daylight)
 

ELM94AP0: Cubic Fluorite crystals, one of them clearly dominant, beveled by the dodecahedron with polycrystalline growths. Transparent, with good luster and a blue color with areas of intense violet. On matrix, associated with Quartz crystals.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2008)

Specimen size: 10 × 8.5 × 6.8 cm = 3.94” × 3.35” × 2.68”

Main crystal size: 3.6 × 3.3 cm = 1.42” × 1.30”

Fluorite with Quartz

Fluorescent light (daylight)
 

NBR29AP9: Druse of very sharp Fluorite crystals, extraordinarily transparent, with very good luster, and light blue color. On matrix, with white coatings of Quartz.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain

Specimen size: 10.2 × 8.3 × 5.7 cm = 4.02” × 3.27” × 2.24”

Main crystal size: 1 × 0.9 cm = 0.39” × 0.35”

Minor fluorescence long & short UV
Fluorite with Quartz. Fluorite with Quartz.
Fluorite with Quartz
Fluorite with Quartz. Fluorite with Quartz.

Fluorescent light (daylight)
 

NNB92AP1: Druse of Fluorite crystals, transparent, lustrous, blue with lilac tones and associated with small Quartz crystals.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2007-2008)

Specimen size: 10.4 × 9.1 × 4.8 cm = 4.09” × 3.58” × 1.89”

Main crystal size: 3.8 × 2.8 cm = 1.50” × 1.10”

Fluorite with Quartz

Fluorescent light (daylight)
 

NCT88AO5: Group of Fluorite crystals with fine polycrystalline growths on the edges, transparent, with good luster and a blue color with green tones, on a matrix of scoriaceous Quartz with small crystallized vugs. Unusual looking for the locality.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (±2010)

Specimen size: 11.3 × 9.4 × 5.1 cm = 4.45” × 3.70” × 2.01”

Main crystal size: 3.3 × 3.1 cm = 1.30” × 1.22”

Minor fluorescence long & short UV
Fluorite with Quartz. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Fluorite with Quartz. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Fluorite
Fluorite. Front
Front
Fluorite. Side
Side
Fluorite. Fluorite. Light behind
Light behind

Fluorescent light (daylight)
 

MTB50AP7: Group of Fluorite crystals with smooth cube faces beveled by rhombododecahedron forms with fine polycrystalline growths. They are transparent, with good luster and an intense blue-violet color, with geometric zoning with the most intense color in the center of the crystals and lighter on the edges.
The specimen comes from the Miguel David Martínez collection (number 2400), whose label we will send to the buyer.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (±2015)

Specimen size: 11.3 × 9.4 × 7.2 cm = 4.45” × 3.70” × 2.83”

Main crystal size: 4.7 × 4.7 cm = 1.85” × 1.85”

Former collection of Miguel David Martínez
Fluorite
 

NJ89AL3: Group of cubic crystals finely beveled on the rhombododecahedron faces, forming stepped edges. The crystals are transparent and have a very deep bluish violet color.
The specimen comes from the Miguel David Martínez collection, whose label we will send to the buyer.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (±2009)

Specimen size: 12 × 8 × 5.8 cm = 4.72” × 3.15” × 2.28”

Main crystal size: 6.3 × 4.9 cm = 2.48” × 1.93”

Former collection of Miguel David Martínez
Fluorite. Front
Front
Fluorite. Light behind
Light behind
Fluorite. Side
Side
Fluorite. Light behind
Light behind
Fluorite with Quartz
Fluorite with Quartz. Fluorite with Quartz.

Fluorescent light (daylight)
 

NM92AK0: Group of crystals with very marked polycrystalline growths and curious shaped dissolution cavities. Translucent and very bright with an intense blue color and partially coated by transparent Quartz crystals.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain

Specimen size: 12.2 × 9.8 × 5.5 cm = 4.80” × 3.86” × 2.17”

Main crystal size: 7.8 × 7.8 cm = 3.07” × 3.07”

Fluorite

Fluorescent light (daylight)
Fluorite
 

SM540NVG: Fluorite crystals of cubic habit beveled by dodecahedron faces, polycrystalline and stepped. The crystals, transparent and lustrous, have a fine geometric color zoning with dominant violet tones on the outside and an azure-blue nucleus.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain

Specimen size: 12.7 × 10.8 × 6.5 cm = 5.00” × 4.25” × 2.56”

Main crystal size: 8.7 × 4.7 cm = 3.43” × 1.85”

Fluorite. Front
Front
Fluorite. Side
Side
Fluorite with Pyrite
Fluorite with Pyrite. Fluorite with Pyrite.
Fluorite with Pyrite.
 

NA52AJ0: Druse, on matrix, of crystals with sharp cube shape, transparent, very bright, colorless and with phantom growths. The edges are outlined by fine alignments of small Pyrite crystals. The sample, found in recent workings at the La Viesca area, is very different from the usual at this big mine.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2015)

Specimen size: 12.8 × 9.9 × 7.8 cm = 5.04” × 3.90” × 3.07”

Main crystal size: 3.7 × 3.4 cm = 1.46” × 1.34”

Fluorite with Quartz

Fluorescent light (daylight)
Fluorite with Quartz
 

XM22600NNP: Final climax! Group of Fluorite crystals of considerable size for the deposit, two of them clearly dominant, interpenetrating and in divergent growth, with an extremely fine bevel modified by the dodecahedron. Between transparent and translucent, with light blue tones and geometric color zoning.
It comes from the great La Viesca Mine in Asturias, which has brought so much joy to the world of mineral collecting, and it has an amazing color...
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2021)

Specimen size: 13.1 × 12.8 × 9.4 cm = 5.16” × 5.04” × 3.70”

Main crystal size: 6.1 × 5.4 cm = 2.40” × 2.13”

Minor fluorescence long & short UV
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side
Side
Fluorite with Quartz
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side with light behind
Side with light behind
Fluorite with Quartz. Close-up
Close-up
Fluorite with Quartz. Close-up with light behind
Close-up with light behind

Fluorescent light (daylight)
Fluorite with Quartz
 

NB76AL0: Group of crystals of cubic habit beveled by the rhombododecahedron, translucent, very deep blue-violet, on matrix with small Quartz crystals. The specimen, which is a floater, comes from the Jaume Vilalta collection (No. 0916) whose label we will send to the buyer.
La Viesca Mine, La Negrina pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (03-04/2006)

Specimen size: 13.4 × 9.8 × 6.5 cm = 5.28” × 3.86” × 2.56”

Main crystal size: 4.3 × 4.1 cm = 1.69” × 1.61”

Former collection of Jaume Vilalta
Fluorite

Fluorescent light (daylight)
 

NNR86AO5: Very aerial and aesthetic growth of Fluorite crystals beveled by dodecahedron faces, transparent, with good luster and a color between violet and blue, with geometric zoning of more intense tones. The specimen, with its numerous very transparent crystals, is a Spanish classic of excellent quality.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (±2010)

Specimen size: 14.7 × 14.5 × 8.4 cm = 5.79” × 5.71” × 3.31”

Main crystal size: 2.2 × 1.3 cm = 0.87” × 0.51”

Fluorite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Fluorite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Fluorite
Fluorite.

Fluorescent light (daylight)
 

NJ89AK0: Group of crystals with smooth cube faces and finely polycrystalline rhombic-dodecahedral forms. The crystals, translucent, lilac-bluish-greenish in color with the lilac tones much more intense in the areas of the phantom growths.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain

Specimen size: 14.8 × 9.7 × 6.4 cm = 5.83” × 3.82” × 2.52”

Main crystal size: 9.6 × 6.8 cm = 3.78” × 2.68”

Fluorite with Quartz

Fluorescent light (daylight)
 

NB97AL4: Group of sharp Fluorite crystals, transparent, bright, with an intense light blue color with violet tones and very marked geometric color zoning. On matrix, with small Quartz crystals.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2006)

Specimen size: 15.6 × 9.2 × 3.9 cm = 6.14” × 3.62” × 1.54”

Main crystal size: 2.2 × 1.6 cm = 0.87” × 0.63”

Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side
Side
Fluorite with Quartz.
Fluorite with Quartz
Fluorite with Quartz. Fluorite with Quartz.
Fluorite with Quartz.

Fluorescent light (daylight)
 

NPR89AO0: Fluorite crystals with a cubic shape finely beveled by dodecahedron faces, transparent, with good luster and a blue color with areas of very intense violet tones and partially coated by small Quartz crystals. The specimen is of great quality by its transparency and luster.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (±2008)

Specimen size: 15.7 × 9.8 × 3.8 cm = 6.18” × 3.86” × 1.50”

Main crystal size: 1.5 × 1 cm = 0.59” × 0.39”

Fluorite

Fluorescent light (daylight)
 

NL94AM1: Group of Fluorite crystals with a very sharp cubic habit, with polycrystalline growths on the crystal faces, on matrix. Transparent, very shiny, with uniform and vivid blue color.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain

Specimen size: 17.8 × 11.4 × 11.8 cm = 7.01” × 4.49” × 4.65”

Main crystal size: 2.4 × 2 cm = 0.94” × 0.79”

Minor fluorescence long & short UV
Fluorite. Front
Front
Fluorite. Rear
Rear
Fluorite.
Fluorite with Chalcopyrite
Fluorite with Chalcopyrite. Front
Front
Fluorite with Chalcopyrite. Slight liight behind
Slight liight behind
Fluorite with Chalcopyrite. Front
Front
Fluorite with Chalcopyrite. Light behind
Light behind

Fluorescent light (daylight)
 

NQ86AJ5: Druse of cubic crystals with polycrystalline growths on the edges. They are translucent and bright and have a very intense violet color with geometric color zoning, darker on the edges. A Spanish classic of great quality, with a magic beauty when it is lighted from the back.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain

Specimen size: 17.8 × 12.4 × 5.8 cm = 7.01” × 4.88” × 2.28”

Main crystal size: 6.5 × 5.4 cm = 2.56” × 2.13”

Fluorite with Quartz

Fluorescent light (daylight)
Fluorite with Quartz
 

TC2660NFW: Group of beveled Fluorite crystals, with stepped faces and polycrystalline growths, transparent, with good luster and a very deep and intense blue color with violet tones. With white Quartz coatings.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2007)

Specimen size: 18.5 × 14.8 × 4.9 cm = 7.28” × 5.83” × 1.93”

Main crystal size: 4.5 × 3.8 cm = 1.77” × 1.50”

Fluorite with Quartz.
Fluorite with Calcite, Quartz and Pyrite
Fluorite with Calcite, Quartz and Pyrite. Fluorite with Calcite, Quartz and Pyrite.

Fluorescent light (daylight)
 

NZ16AM5: Druse of cubic Fluorite crystals beveled by the faces of the dodecahedron, transparent, with good luster and an intense and deep violet color and a twinned Calcite crystal with two generations of growth, a first transparent and a second whitish.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (2009)

Specimen size: 22 × 15.5 × 3.5 cm = 8.66” × 6.10” × 1.38”

Main crystal size: 1.8 × 1.7 cm = 0.71” × 0.67”


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