The "Collada" and "Josefa-Veneros" veins at La Collada rate among the greatest in Spanish mineralogy. All Spanish collectors dream of having one of the extraordinary specimens in their collection. The specimens have a wide variation in, normally intense, color, modified edges to the crystals, and really very special forms. Although people recently found material in the same region and it is not that distinct from the classic ones, the old timers still have that special something.
| Fluorite with Calcite |
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MG96AH4: Isolated Fluorite crystal cubes clearly beveled by the dodecahedron. They are transparent, bright and have a violet color very much deeper on the bevels. The crystals, aerial, have grown implanted on a group of white scalenohedral Calcite crystals.
The sample, a great Spanish classic, is from Dr. Anton Forster, a mine engineer and collaborator of Dr. Maucher at Munich University. Dr. Forster was the Geologist in Chief at La Collada when the famous samples from the Josefa-Veneros vein were collected.
Josefa-Veneros vein, Coroña de Arriba-La Collada, La Collada mining area, Siero, Comarca Oviedo, Asturias Spain (±1970)
Specimen size: 11.5 × 8.3 × 7 cm = 4.5” × 3.3” × 2.8”
Main crystal size: 2 × 1.8 cm = 0.8” × 0.7”
Euro:1900 / US$2196 / Yen:239170 / AUD$2919
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Fluorite |
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MY92AG9: Group of cubic crystals beveled by dodecahedron faces that have polycrystalline growths. The crystals that are transparent have an intense blue color.
The sample, a classic, is from Dr. Anton Forster, a mine engineer and collaborator of Dr. Maucher at Munich University. Dr. Forster was the Geologist in Chief at La Collada when the famous samples from the Josefa-Veneros vein were collected.
Josefa-Veneros vein, Coroña de Arriba-La Collada, La Collada mining area, Siero, Comarca Oviedo, Asturias Spain (±1970)
Specimen size: 13 × 10.7 × 8.8 cm = 5.1” × 4.2” × 3.5”
Main crystal size: 6.7 × 6 cm = 2.6” × 2.4”
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| Fluorite with Calcite |
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NG97AG9: Single cubic crystal clearly beveled by the faces of the dodecahedron. It has very well defined faces and edges, is transparent with a pale lilac color and is implanted on a matrix with white scalenohedral Calcite crystals. This matrix has a partially sawn back to avoid it being broken while it was trimmed.
Llamas Quarry, Obdulia vein, Caravia mining area, Las Cabañas, Duyos, Caravia, Comarca Oriente, Asturias Spain
Specimen size: 7.5 × 5.8 × 3.2 cm = 3.0” × 2.3” × 1.3”
Main crystal size: 1.5 × 1.5 cm = 0.6” × 0.6”
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Fluorite with Quartz |
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NP87AF6: A novelty at Sainte Marie-aux-Mines 2017. The cubic crystals are beveled by the faces of the dodecahedron. They are very aerial, bright, transparent, and of a pale lilac color; they are implanted on a matrix of Quartz crystals. The “Coquera del Tubo”, a new collecting site at the Llamas locality, is now producing very high-quality specimens.
Llamas Quarry, Coquera del tubo, Obdulia vein, Caravia mining area, Las Cabañas, Duyos, Caravia, Comarca Oriente, Asturias Spain (04/2017)
Specimen size: 10 × 6.8 × 4.9 cm = 3.9” × 2.7” × 1.9”
Main crystal size: 1.2 × 1.2 cm = 0.5” × 0.5”
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| Fluorite with Quartz |
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NV68AF0: Group of three crystals with the clearly dominant cube faces, beveled by the dodecahedron. They are extremely clear and bright, with a pale lilac color and on a Quartz matrix coated by small crystals of the same mineral.
Llamas Quarry, Obdulia vein, Caravia mining area, Las Cabañas, Duyos, Caravia, Comarca Oriente, Asturias Spain
Specimen size: 7.3 × 4.2 × 3.6 cm = 2.9” × 1.7” × 1.4”
Main crystal size: 1.2 × 0.9 cm = 0.5” × 0.4”
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Fluorite with Quartz |
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NC99AE6: Cubic Fluorite crystal on a matrix of crystallized Quartz. The single crystal is neatly beveled by the dodecahedron, it is transparent and has geometric color zones as “phantoms” varying from pale lilac to the deepest violet.
Llamas Quarry, Obdulia vein, Caravia mining area, Las Cabañas, Duyos, Caravia, Comarca Oriente, Asturias Spain
Specimen size: 4.8 × 4.7 × 2.4 cm = 1.9” × 1.9” × 0.9”
Main crystal size: 2.5 × 2.3 cm = 1.0” × 0.9”
Euro:480 / US$575 / Yen:63000 / AUD$761
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| Fluorite with Quartz |
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NF98Z0: Cubic Fluorite crystal finely beveled by the dodecahedron. It is extraordinarily clear and bright and implanted on a matrix with small Quartz crystals.
Llamas Quarry, Obdulia vein, Caravia mining area, Las Cabañas, Duyos, Caravia, Comarca Oriente, Asturias Spain
Specimen size: 4.8 × 4.7 × 4 cm = 1.9” × 1.9” × 1.6”
Main crystal size: 1 × 0.7 cm = 0.4” × 0.3”
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Fluorite with Calcite |
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NH46Z8: Aggregates of very sharp cubic crystals with very well developed dodecahedron bevels. They are transparent, extraordinarily bright, and almost colorless with slight lilac shades, on a matrix of scalenohedral Calcite crystals.
Llamas Quarry, Obdulia vein, Caravia mining area, Las Cabañas, Duyos, Caravia, Comarca Oriente, Asturias Spain
Specimen size: 6 × 6 × 4.1 cm = 2.4” × 2.4” × 1.6”
Main crystal size: 0.5 × 0.5 cm = 0.2” × 0.2”
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| Fluorite with Quartz and Calcite |
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NT89AE7: Elongated cubic Fluorite crystal that is bright, extraordinarily clear, with a pale lilac color and is on a matrix of Quartz crystals with Calcite coatings.
Llamas Quarry, Obdulia vein, Caravia mining area, Las Cabañas, Duyos, Caravia, Comarca Oriente, Asturias Spain
Specimen size: 6.5 × 6.2 × 4.8 cm = 2.6” × 2.4” × 1.9”
Main crystal size: 1.6 × 1.1 cm = 0.6” × 0.4”
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Fluorite from Berbes, Asturias, Spain, one of the classic fluorite localities in Europe at the moment. Given the poor state of the area, the local collectors, who used to find those amazing pockets of fluorite, are finding fewer and fewer good specimens. These are specimens that come from some careful hunting by the locals.
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Fluorite |
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NR6P1: Cubic crystals with polysynthetic growths on some of their faces and geometric color zoning, deeper at the center of the crystal. On the back side the group is partially well crystallized and it is partially recrystallized by a contact.
La Cabaña, Berbes mining area, Valdelmar, Berbes, Ribadesella, Comarca Oriente, Asturias Spain
Specimen size: 3.8 × 3.7 × 2.1 cm = 1.5” × 1.5” × 0.8”
Main crystal size: 2.7 × 2.1 cm = 1.1” × 0.8”
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| Fluorite with Baryte and Quartz |
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N61XXAC9: Aggregate of very sharp cubic Fluorite crystals, transparent and bright, with a sky blue color and on a matrix of white Baryte crystals partially coated by Quartz that, in some areas, also partially coats the Fluorite crystals.
La Cabaña, Berbes mining area, Valdelmar, Berbes, Ribadesella, Comarca Oriente, Asturias Spain (11/1993)
Specimen size: 9.8 × 7.5 × 6.6 cm = 3.9” × 3.0” × 2.6”
Main crystal size: 1.2 × 0.8 cm = 0.5” × 0.3”
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In Berbes, Asturies, one of the most famous pockets was the pocket of 'Coquera del Liso' found in March 1993. One huge rock, which weighed more than 50 tons, had fallen from the cliffs. Inside this rock local collectors found great water clear Fluorite crystals with naturally modified corners, frequently associated with Quartz and Baryte. Fabre Minerals bought the whole pocket. These specimens come from this find.
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Fluorite with Quartz |
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NA13E0: It has small but very transparent crystals of Fluorite that have a very deep color. The contrast with the white quartz matrix, which looks like snow, makes it esthetic.
Coquera del Liso, La Cabaña, Berbes mining area, Valdelmar, Berbes, Ribadesella, Comarca Oriente, Asturias Spain (1993)
Specimen size: 10.5 × 8.5 × 5.5 cm = 4.1” × 3.3” × 2.2”
Main crystal size: 0.6 × 0.5 cm = 0.2” × 0.2”
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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 |
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NV66T0: Group of cubic crystals with echeloned growths on some of their faces and very well defined geometrical color zoning, deep violet in the inner crystal and more bluish on the external areas. 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, Reguerín II pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Asturias Spain (12/2001)
Specimen size: 6.2 × 4.3 × 4.5 cm = 2.4” × 1.7” × 1.8”
Main crystal size: 1.2 × 1.1 cm = 0.5” × 0.4”
Former Fernando Brugos
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Fluorite with Quartz after Calcite |
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MR96S5: Beveled cubic crystals of Fluorite. They are violet with bluish shades and a very well marked geometrical zoning of the color and are on matrix with a perimorphic growth of Quartz that partially replaced the forms of a pre-existing crystal of Calcite, now disappeared.
La Viesca Mine, Reguerín II pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Asturias Spain (12/2001)
Specimen size: 9.7 × 7.6 × 3.8 cm = 3.8” × 3.0” × 1.5”
Main crystal size: 1.4 × 1.1 cm = 0.6” × 0.4”
Minor fluorescence long & short UV
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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.
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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, Asturias Spain (03/1999)
Specimen size: 13.4 × 9 × 7.7 cm = 5.3” × 3.5” × 3.0”
Main crystal size: 7.7 × 4 cm = 3.0” × 1.6”
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If you want to know more about "Coquera La Negrina" Fluorite please follow this link
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Fluorite |
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To see a larger 3D image please
click here or on the image |
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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, Asturias Spain (03-04/2006)
Specimen size: 11.7 × 9.6 × 3.4 cm = 4.6” × 3.8” × 1.3”
Main crystal size: 1.7 × 1.5 cm = 0.7” × 0.6”
Former Fernando Brugos
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| Fluorite with Quartz |
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NF47AC8: Irregular aggregate of crystals with smooth cube faces modified by polycrystalline dodecahedron growths. The crystals are transparent, have very well defined geometrical color zones and a very intense violet color. They are on a rocky matrix partially coated by small Quartz crystals.
La Viesca Mine, La Negrina pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Asturias Spain (03-04/2006)
Specimen size: 12 × 8.9 × 3.6 cm = 4.7” × 3.5” × 1.4”
Main crystal size: 2.4 × 2.2 cm = 0.9” × 0.9”
Former Fernando Brugos
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Fluorite with Quartz |
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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, Asturias Spain (03-04/2006)
Specimen size: 23.5 × 17.5 × 6.5 cm = 9.3” × 6.9” × 2.6”
Main crystal size: 2.4 × 2.2 cm = 0.9” × 0.9”
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If you want to know more about "La Falla" Fluorite please follow this link
| Fluorite with Quartz |
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NZ47T0: Group of cubic crystals with polycrystalline growths on the faces of the cube. They are bright, transparent and have clear lilac color. On matrix, with Quartz crystals. 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, La Falla pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Asturias Spain (2004)
Specimen size: 13.2 × 9.9 × 5.4 cm = 5.2” × 3.9” × 2.1”
Main crystal size: 2.1 × 1.8 cm = 0.8” × 0.7”
Former Fernando Brugos
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If you want to know more about "Geoda de Las Monjas" Fluorite please follow this link
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Fluorite with Chalcopyrite |
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ND86T0: Very aerial group of cubic crystals beveled by the faces of the dodecahedron. They are transparent, of deep violet color and have geometrical color zoning. On matrix and partially coated by very small crystals of Chalcopyrite. 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, Las Monjas pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Asturias Spain (05/2010)
Specimen size: 6.8 × 5.7 × 4.4 cm = 2.7” × 2.2” × 1.7”
Main crystal size: 2.2 × 2.2 cm = 0.9” × 0.9”
Former Fernando Brugos
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| Fluorite with Chalcopyrite |
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NF76T0: Group of cubic crystals beveled by the dodecahedron. They are transparent, have deep violet color, geometrical color zoning and very small crystals of Chalcopyrite spread on their faces. 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, Las Monjas pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Asturias Spain (05/2010)
Specimen size: 8.3 × 6.9 × 3.2 cm = 3.3” × 2.7” × 1.3”
Main crystal size: 2.4 × 2.1 cm = 0.9” × 0.8”
Former Fernando Brugos
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Fluorite with Quartz |
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NC98Z2: Aggregate of translucent crystals with a very deep color, with violet shades on the cube faces and blue on the dodecahedral bevels. The sample is partially coated by a “cap” of small Quartz crystals.
La Viesca Mine, Las Monjas pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Asturias Spain (05/2010)
Specimen size: 14.5 × 10.2 × 4.2 cm = 5.7” × 4.0” × 1.7”
Main crystal size: 5 × 4.3 cm = 2.0” × 1.7”
Former Fernando Brugos
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At the Jaimina mine, Caravia, Asturias, Spain, are found tetrahexaedrical Fluorite with very interesting crystallography. They are associated with Baryte and Calcite, sometimes with Chalcopyrite inclusions too.
| Fluorite with Baryte and Chalcopyrite inclusions |
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N36ZLAD3: Aggregate of Fluorite crystals with the cube and the tetrahexahedron faces. They are colorless, transparent and bright and are partially coated by laminar white Baryte crystals. They are also rich with inclusions of Chalcopyrite.
Jaimina Mine, Obdulia vein, Caravia mining area, Trechorio, Carrales, Caravia, Comarca Oriente, Asturias Spain (1995)
Specimen size: 9.7 × 7.7 × 5.2 cm = 3.8” × 3.0” × 2.0”
Main crystal size: 2.4 × 2 cm = 0.9” × 0.8”
Fluorescence short UV & minor fluorescence long UV
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The Fluorite from the Emilio Mine is known for its incredible transparency and brilliance. When these two aspects come together with the fact that the majority of specimens are colorless they become almost invisible. So one can see the matrix through the crystals as well as other minerals under them or included in them.
Very few perfect specimens are found, as the type of deposit makes collecting them very hard, so any undamaged ones that do come out are highly sought after by both Spanish and other collectors.
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Fluorite with hydrocarbide inclusions, Baryte and Calcite |
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NV11AB4: Colorless, transparent and very bright Fluorite crystals on matrix, with a lot of small white laminar Baryte crystals. Inclusions in Fluorite crystals are a hydrocarbide of organic origin. The sample is from a classic Asturian mine from which it is increasingly difficult to obtain pieces of good quality.
Emilio Mine, "Zona Intermedia", Obdulia vein, Caravia mining area, La Rubiera, Loroñe, Colunga, Comarca de la Sidra, Asturias Spain (09-11/2004)
Specimen size: 11.7 × 10.5 × 8 cm = 4.6” × 4.1” × 3.1”
Main crystal size: 1.2 × 1.2 cm = 0.5” × 0.5”
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For many years under the general locality 'Villabona' many nice lemon yellow Fluorites have appeared on the market, often associated with saddle Dolomite and often quite large Calcite which has interesting crystal form and is white to yellow in color. Less frequently they were associated with blue, white and once in a while yellow Baryte. Pyrite and Marcasite completed the paragenesis.
As so often happens, production has dropped over the last few years and, while the mine is still active, almost no new material has been found.
If you want to know more about Moscona Mine please follow this link
| Baryte with Calcite and Fluorite |
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NY37D9: It is a floater, with good color and brilliance in the Fluorite, and also with small crystals of Pyrite peppering the whole of the specimen. Elegant.
Moscona Mine, El Llano, Solís, Corvera de Asturias, Comarca Avilés, Asturias Spain (1995)
Specimen size: 13 × 13 × 4.5 cm = 5.1” × 5.1” × 1.8”
Fluorite extremely fluorescent long & short UV
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Octahedral Fluorite on granite from Berta quarry. This octahedral Fluorite is extremely fluorescent with ultraviolet light. It is considered to be a classic mineral from Spain. Lots of local collectors learnt mineralogy in this small quarry close to Barcelona.
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Fluorite |
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LM36AF0: Druse of transparent cubic crystals with a pale yellow color, very bright, with unidentified green inclusions in some crystals and on a rocky matrix.
The sample is from the Carles Millán collection whose computer card we’ll send to the buyer.
Matagalls Mine (Sant Marçal Mines), Sant Marçal, Viladrau, Comarca Osona, Girona/Gerona, Catalonia Spain (21/03/1971)
Specimen size: 7.8 × 4.8 × 2.9 cm = 3.1” × 1.9” × 1.1”
Main crystal size: 1.5 × 1.4 cm = 0.6” × 0.6”
Former collection of Carles Millan
Intense fluorescence short UV & fluorescent long UV
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| Fluorite with Pyrite inclusions |
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MG76W4: Group of very sharp cubic crystals with very well defined faces and edges, translucent and yellow with a slightly green color. The sample, with more transparency near the edges than in the central zones, is very representative of this classic Catalan locality.
Matagalls Mine (Sant Marçal Mines), Sant Marçal, Viladrau, Comarca Osona, Girona/Gerona, Catalonia Spain
Specimen size: 8.9 × 7.5 × 3.8 cm = 3.5” × 3.0” × 1.5”
Main crystal size: 2.6 × 2.5 cm = 1.0” × 1.0”
Fluorescent long & short UV
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Octahedral Fluorite |
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NH60Z1: Group of very sharp and translucent octahedral crystals, with a very intense green color, that partially coat a granite matrix. A Spanish classic from a currently closed locality that only sporadically produces samples of this quality. This piece is from an old collection.
Berta Quarry, Can Domènech Hill, Roques Blanques Mountains, Sant Cugat del Vallès-El Papiol, Comarca Vallès Occidental / Baix Llobregat, Barcelona, Catalonia Spain
Specimen size: 6.2 × 6.1 × 4.3 cm = 2.4” × 2.4” × 1.7”
Main crystal size: 0.7 × 0.7 cm = 0.3” × 0.3”
Very fluorescent long & short UV
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| Octahedral Fluorite |
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NG60AC5: Octahedral crystals with small cube faces on the vertices. They are translucent, have a uniform green color and are implanted on a granitic rock matrix with small white Quartz crystals.
Berta Quarry, Can Domènech Hill, Roques Blanques Mountains, Sant Cugat del Vallès-El Papiol, Comarca Vallès Occidental / Baix Llobregat, Barcelona, Catalonia Spain (1975-1976)
Specimen size: 6.5 × 6 × 4.2 cm = 2.6” × 2.4” × 1.7”
Main crystal size: 1 × 0.8 cm = 0.4” × 0.3”
Fluorescent long & short UV
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Octahedral Fluorite |
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NB10AC5: Druse of very sharp octahedral crystals that are translucent, have a vivid and uniform green color and are on a matrix of granitic rock.
Berta Quarry, Can Domènech Hill, Roques Blanques Mountains, Sant Cugat del Vallès-El Papiol, Comarca Vallès Occidental / Baix Llobregat, Barcelona, Catalonia Spain (1975-1976)
Specimen size: 7.6 × 4.2 × 3.8 cm = 3.0” × 1.7” × 1.5”
Main crystal size: 0.6 × 0.5 cm = 0.2” × 0.2”
Very fluorescent long & short UV
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