Mamellonar aggregates of smithsonite crystals with a very nice orange to brown color covering cavities in the rocky matrix. From a recent find (2014, april) in one of the biggest "cortas" (quarry) of Portmán mining area.

A curiosity that I found aesthetic and mineralogically interesting. Usually the menilite opals are found in a marlstone matrix, but in this case we found it included in gypsum with clay inclusions. A Spanish curious specimen...

Good size sulfur crystal from a classic Spanish locality, but a not well-known outcrop. It shows very well defined faces and edges, good brilliance and an excellent canary yellow to slightly orange color. Disposed and protected in a vug vovered by calcite crystals. A fine Spanish sulfur specimen.

A classic Spanish specimen not easy to find today. These crystals from Ariño were collected many years ago and today it is really difficult to find them as mines have been abandoned. This specimen belongs to a private collection and the owner extracted it in the 90s.
Crystal stands by its size, transparency and carbonaceous inclusions. In certain areas it shows forms of natural redisolution.

Group of water-clear gypsum crystals, one of them dominant and with a good size. They show a magnificent luster and transparency and very well defined edges and faces. Disposed very aerial on a white alabaster matrix covered by small gypsum crystals. In this specimen we can observe a marked swallowtail twin in one of the crystals and defined terminal faces in others. Very interesting and representative for the best display.
Under short and long wave ultraviolet light sources these specimens show intense fluorescence and long live phosphorescence. Selenite specimens from Fuentes de Ebro quarries have been considered the best ones worldwide.

Group of water-clear gypsum crystals, one of them dominant, near to doubly terminated and with a good size. They show a magnificent luster and transparency and very well defined edges and faces. Disposed very aerial on a white alabaster matrix covered by small gypsum crystals. In this specimen we can observe phantom growths in the main crystal and a marked swallowtail twin. Very interesting and representative.
Under short and long wave ultraviolet light sources these specimens show intense fluorescence and long live phosphorescence. Selenite specimens from Fuentes de Ebro quarries have been considered the best ones worldwide.

Group of water-clear gypsum crystals, one of them dominant and with a good size. They show a magnificent luster and transparency and very well defined edges and faces. Disposed very aerial on a white alabaster matrix covered by small gypsum crystals. In this specimen we can observe some phantom growths in the main crystal and a marked swallowtail twin. Very interesting and representative.
Under short and long wave ultraviolet light sources these specimens show intense fluorescence and long live phosphorescence. Selenite specimens from Fuentes de Ebro quarries have been considered the best ones worldwide.

A very rich group of galena crystals, very bright, with good size, interpenetrating between them and showing cube and octahedron faces. They are partially covered by brilliant crystals of sphalerite with honey color and transparency to black and opaque. They are disposed on a matrix with pyrrhotite. An exceptional piece for this classic Spanish locality.

Excellent specimen of fluorite with an intense color and well defined faces and edges. It shows polycrystalline cubic growths with a color that varies between violet to purple depending on the light, with geometric color zoning. It is accompanied by quartz crystals.

Cobaltkoritnigite specimens from this mine are the first report of this mineral in Spain. It appears forming globular aggregates with a deep pinkish red with erythrite (pink color). Under the electronic microscope we can observe that these globules are composed by tabular crystals. It is a cobalt with zinc arsenate and belongs to the koritnigita group (zinc arsenate). In this mine has been found at low levels. Analysis results will be sent to the buyer.
We have published a book called "Rocabruna i el seu entorn. La mina de les Ferreres" where you could enjoy all species collected and determined until the date of publication (2014).

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Excellent and very rich specimen of theisite where we can observe several globular clusters formed by lamellar crystals with an intense blue-green color contrasting with the azurite. This mineral species from this mine is the second citation in Spain. Analysis results will be sent to buyer. This is a rare arsenate-antimonate of copper and zinc has been described in this mine in the Pyrenees.
We have published a book called "Rocabruna i el seu entorn. La mina de les Ferreres" where you could enjoy all species collected and determined until the date of publication (2014).

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Radial aggregates of acicular tyrolite crystals grown in the fissures of the barite matrix. Characteristic bluish green color and good luster. Analysis results will be sent to buyer. Accompanied by botryoidal malachite and sprays of acicular aragonite.

We have published a book called "Rocabruna i el seu entorn. La mina de les Ferreres" where you could enjoy all species collected and determined until the date of publication (2014).

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Radial aggregates of acicular tyrolite crystals grown in the fissures of the barite ore. Characteristic bluish green color and good luster. Analysis results will be sent to buyer.

We have published a book called "Rocabruna i el seu entorn. La mina de les Ferreres" where you could enjoy all species collected and determined until the date of publication (2014).

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Excellent groups formed by lamellar crystals of claraite, of an intense turquoise blue, on a matrix of dolomite and sulphides. It is accompanied by spheric aggregates of theisite crystals, with a bluish to green color. Also with azurite. Analysis results will be sent to the buyer.
Claraite is a rare copper and zinc carbonate which may contain sulfur and/or arsenic. Theisite is a rare copper and zinc arsenate-antimonate that has been described for the first time in this mine in the Catalan Pyrenees. These mineral species are the second citation in Spain.
We have published a book called "Rocabruna i el seu entorn. La mina de les Ferreres" where you could enjoy all species collected and determined until the date of publication (2014).

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Globular aggregates formed by lamellar crystals of theisite. With a bluish to green color and brilliance. On a dolomite matrix. This mineral species is the second citation in Spain. Theisite is a rare copper and zinc arsenate-antimonate that has been described for the first time in this mine in the Catalan Pyrenees. Accompanied by several azurite, transparent, bright, well-defined and some doubly terminated. Also with botryoidal to stalactitic malachite aggregates. Analysis results will be sent to the buyer.
We have published a book called "Rocabruna i el seu entorn. La mina de les Ferreres" where you could enjoy all species collected and determined until the date of publication (2014).

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Group of interpenetrated cubic fluorite crystals with violet tones and delicate color zoning, transparence in some crystals, most being translucent. Characteristic for fluorite of this mine are the corroded faces. They are disposed on a matrix of iron oxides. What I also would like to emphisize of this piece is the mine from which it comes, near Alumbres in Cartagena, not well represented in collections.

Group of interpenetrated pyritohedrons on matrix from a classic Spanish locality as Ambasaguas. Very sharp faces and edges, intense golden color and excellent luster. The perfection of the Rioja pyrites.

A novelty in the Castelló mineral show 2014. This is a group of aragonite crystals showing very aesthetic flos ferry structures, with good brilliance and white color, slightly brownish tones at the terminal crystals. It comes from a Almerian mountains well known for its hot springs.

A novelty in the Castelló mineral show 2014. This is a group of aragonite crystals showing very aesthetic flos ferry structures, with good brilliance and white color, slightly brownish tones at the terminal crystals. It comes from a Almerian mountains well known for its hot springs.

These crystals show astonishing sharpness of tetrahexahedron faces, together with the less developed cube. Crystals are uncolored (under halogen light) or slightly bluish (under fluorescent light), bright and completely clear and are scattered over an esthetic matrix of white crystals of barite. A high-quality specimen that belonged to the Silvane (Barcelona) collection.

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From a recent find in the Valentín open pit, we get these hemimorphite specimens showing aggregates of flattened prismatic crystals as aesthetic rosettes. They are partiallly filling cavities in the matrix. These samples have been analyzed and we will send a copy to the buyer.

A piece with history. This is a specimen of elongated prismatic barite crystals with toasted honey tones and very good transparence. It shows very sharp prismatic and terminal faces. These specimens are uncommon in the market. It comes from the former Daunis (Barcelona) collection. Very representative.

A very rich group of pyrite crystals forming a globular aggregate, very brilliant, with an intense color and hinting cubic faces. It is disposed very aerial on the matrix with rhombohedral calcite crystals and yellow fluorite. To increase its aesthetics a single calcite crystal has grown on the pyrite. A unusual specimen for this mine where pyrite is often found in small crystals coating the fluorite.

From a recent find in the Valentín open pit, we get these hemimorphite specimens showing aggregates of flattened prismatic crystals as aesthetic rosettes. They are partiallly filling cavities in the matrix. These samples have been analyzed and we will send a copy to the buyer.

A very rich group of interpenetrated fluorite crystals with cubic forms with beveled edges by the dodecahedron. Very sharp and with a really intense color, that varies depending on the incident light, between blue-violet to purple. A high quality Spanish fluorite specimen, from my own collection.

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