Almandine crystal, rich in faces, with forms of the dodecahedron, and rounded edges. A classic of Spanish mineralogy, nowadays very difficult to see.

Size: 4.5 x 3.0 x 2.9 cm.
Found in 1973.

Collected by Marçal Llòria.

A very rich druse of marcasite crystals those clearly show the cockscomb twin. Brilliant, defined and very aesthetic. A Spanish classic.

Size: 9.5 x 7.0 x 2.2 cm.
Main crystal: 15 x 7 mm.

Aesthetic group of well-developed baryte crystals from this Murcian locality. They are disposed forming a "open-book" shape with parallel growth. They stand out as being covered with small, bright and transparent crystals of calcite, some chalcedony, peppered by small crystals of goethitized pyrite and manganese oxydes. A piece of an unusual locality not easy to find in the mineral market.

Size: 8.7 x 5.8 x 4.4 cm.
Main crystal: 35 x 25 mm.
Found in 2011.

Specimens of this mine are unusual in the market. This sample, from an former collection, is one of those pieces that make us appreciate the minerals of the La Gaviota mine. On a matrix of goethite, partially covered with tiny crystals of pyrolusite, are disposed very aerial a rich group of tabular barite crystals. Between translucent to transparent. An opportunity to represent perfectly this mine in our collection.

Size: 12.5 x 8.6 x 5.2 cm.
Main crystal: 25 x 20 mm.
Found in 1990's.

Group of orthoclase crystals, showing the complex faces of the baveno twin together with complex prisms and false rhombohedrons. Nice slightly orange color and defined edges and faces. It was collected many years ago near of the Montseny massif; this area was well known for orthoclase mineral collectors. A classic from a classic collection. Mr. Daunis and Mrs. Ruscalleda (wife) collection were specialized in Spanish quartz and orthoclase specimens.

Size: 5.0 x 4.1 x 3.7 cm.

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).

Size: 7.2 x 5.5 x 4.6 cm.
Found in 2013.

Globular aggregates formed by lamellar crystals of theisite. With a bluish to green color and brilliance. On a dolomite matrix with barite and chalcopyrite. 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. 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).

Size: 7.5 x 5.6 x 1.4 cm.
Found in 2013.

Nice specimen formed by several brilliant crystals of sphalerite, with toasted honey color, accompanied by snow-white dolomite crystals and octahedral galena. It comes from a Spanish locality where it is difficult find these species combination.

Size: 7.2 x 5.6 x 3.5 cm.

These old specimens of pyrite belong to one of those curiosities that Nature offers us. In these pieces we can see crystals those are showing no apparent cubic symmetry. They have, more or less marked, parallelepiped forms unusually flattened. The edges are completely natural and the crystal has been consolidated on its matrix to avoid its possible detachment.
This kind of crystals put into question certain aspects of the cubic symmetry of pyrite. For more information on this topic you can read articles like King & Prewitt 1979 (Amer. Min., 64, 1265-1271).

Size: 11.3 x 5.3 x 5.2 cm.
Main crystal: 33 x 25 x 18 mm.
Found in 1990's.

These old specimens of pyrite belong to one of those curiosities that Nature offers us. In these pieces we can see crystals those are showing no apparent cubic symmetry. They have, more or less marked, parallelepiped forms unusually flattened. The edges are completely natural and the crystal has been consolidated on its matrix to avoid its possible detachment.
This kind of crystals put into question certain aspects of the cubic symmetry of pyrite. For more information on this topic you can read articles like King & Prewitt 1979 (Amer. Min., 64, 1265-1271).

Size: 10.5 x 7.7 x 5.0 cm.
Main crystal: 22 x 14 x 13 mm.
Found in 1990's.

These old specimens of pyrite belong to one of those curiosities that Nature offers us. In these pieces we can see crystals those are showing no apparent cubic symmetry. They have, more or less marked, parallelepiped forms unusually flattened. The edges are completely natural and the crystal has been consolidated on its matrix to avoid its possible detachment.
This kind of crystals put into question certain aspects of the cubic symmetry of pyrite. For more information on this topic you can read articles like King & Prewitt 1979 (Amer. Min., 64, 1265-1271).

Size: 8.0 x 7.3 x 4.6 cm.
Main crystal: 26 x 22 x 13 mm.
Found in 1990's.

Silver specimens from Gualba mines are so appreciated by Spanish collectors due to their scarcity. This specimen shows arborescent and granulated aggregates of native silver emerging from the white matrix of calcite (treated with acetic acid). A unique opportunity to get a silver sample of this historic Catalan mine.

Size: 5.9 x 3.8 x 3.8 cm.
Main crystal: 7 x 1 mm aggr.
Found in 1980's.

Calcite is fluorescent under LW-UV.

Druse of small torbernite crystals forming rossetes of tabular crystals with a green color.

Size: 4.3 x 3.0 x 2.7 cm.
Main crystal: 1 x 1 mm.

A nice druse of very curious calcite crystals showing rhombohedron terminal faces and the side faces covered with a second generation of calcite with staggered growth of intense white color. They are disposed on a matrix of goethite with manganese oxides. Special one for calcite mineral collectors.

Size: 12.0 x 8.3 x 6.3 cm.
Main crystal: 10 x 10 mm.

Fluorescent under long wave UV

Very "curious" specimen of these opals from the gypsum quarries of Agramón. It is not so common to find them in a consolidated matrix.

Size: 9.3 x 8.5 x 3.8 cm.
Main crystal: 30 x 18 mm.

Group of octahedral crystals of fluorite, nice green color, transparent to translucent and very well defined faces and edges. Peppered by small crystals of pyrite with complex shapes and even tabular appearance. They are disposed on a matrix with calcite and pyrite. From a classic Catalan locality. Fluorescence (UV-LW) is red for calcite and blue for fluorite.

Size: 11.5 x 5.7 x 5.0 cm.
Main crystal: 8 x 8 mm.
Found in ca. 2001.

Fluorescent under long wave UV

From a recent finding in an outcrop close to the Proserpina reservoir, near of the interesting city of Mérida (Badajoz). This specimen shows small turquoise crystals forming botryoidal aggregates with a nice bluish and greenish tones, partially covered by a second generation of more yellowish crystals. We'll send a copy of the analysis to the buyer.

Size: 6.9 x 6.5 x 2.4 cm.
Found in 2013.

A curious calcite specimen that shows the top faces of the scalenohedron, with a translucent crystal core area and the outer areas colorless, highly visible at the acute termination. Well defined, brilliant and on a matrix of quartz crystals. Nice.

Size: 10.0 x 5.5 x 5.1 cm.
Main crystal: 6.8 x 3.5 cm.
Found in 2015.

Fluorescent under long wave UV

Superb specimen of fluorite from the mythic vein called Josefa-Veneros. A druse of fluorite crystals showing the cube faces with beveled edges by the dodecahedron. Good brilliance and intense violet color with zoning, more intense on edges. The definition of faces and edges is excellent and the crystal size more than interesting. An opportunity to get a classic from Asturian fluorite, not easy (near impossible) to be found nowadays.

Size: 15 x 7 x 7 cm.
Main crystal: 8 x 8 mm.
Found in ±1975.

A huge size specimen large formed by a rich group of cubic fluorite crystals with an intense, very intense violet color, with some zoning. Translucent and semidull faces. Crystals are disposed on a matrix covered by small quartz crystals. Some fluorite crystals have small damages, without affecting the beauty of the piece. From a Spanish classic locality.

Size: 17 x 14 x 7 cm.
Main crystal: 15 x 15 mm.
Found in ca. 2014.

Group of strontianite crystals with an elongated pyramidal habit, forming bundles and aggregates, with color between white to colorless. These specimens appeared in a concrete area of the mine Oriolana (Busot, Alicante) and initially were identified as aragonite or calcite. Further analysis indicated that this was strontianite with some calcium. It indicates that the crystals are zoned and its composition varies within the crystal. They were determined strontianita (majority), celestite, calcite with some quartz (probably due to mechanical mixtures).

Size: 7.2 x 5.5 x 4.5 cm.
Main crystal: 4 mm.
Found in 2011.

Fluorescent under long wave UV

Group of strontianite crystals with an elongated pyramidal habit, forming bundles and aggregates, with color between white to colorless. These specimens appeared in a concrete area of the mine Oriolana (Busot, Alicante) and initially were identified as aragonite or calcite. Further analysis indicated that this was strontianite with some calcium. It indicates that the crystals are zoned and its composition varies within the crystal. They were determined strontianita (majority), celestite, calcite with some quartz (probably due to mechanical mixtures).

Size: 9.2 x 7.0 x 3.8 cm.
Main crystal: 3 mm (aggreg).
Found in 2011.

Fluorescent under long wave UV

On a rocky matrix of granite, partially covered by small but brilliant quartz crystals, some groups and isolated fluorite crystals. Good transparence, brilliance and with a intense green color. A mineral classic from Catalonia.

Size: 6.4 x 6.1 x 5.0 cm.
Main crystal: 7 x 7 mm.
Found in 1990's.

Fluorescent under LW-UV and SW-UV lights

Rich group of schorl crystals with an intense black color, forming brilliant divergent agreggates, and disposed on a ophitic matrix with epidote crystals. This Catalan locality was well known for its epidote and axinite (Fe) specimens. Along with these species, and on the epidote, appeared from time to time groups of very dark, near black, crystals which once analyzed proved to be tourmaline: schorl.

Size: 9.3 x 7.2 x 5.5 cm.
Main crystal: 14 x 10 mm.
Found in 2012.

From a recent find in the area of La Celia mines. This crystal is very rich in faces, doubly terminated, gem quality, very brilliant and with an excellent transparence. It is accompanied by numerous other smaller crystals. A very interesting specimen.

Size: 6.8 x 4.3 x 3.7 cm.
Main crystal: 16 x 6 mm.
Found in 2015.