Aggregate of brown sphalerite crystals nestled in a matrix of dolomite crystals. When light passes through them, they reveal that characteristic honey-brown hue.

A group of complex, interpenetrating sphalerite crystals with dodecahedron faces. The specimen is translucent, allowing light to shine through it, revealing the orange luminosity that makes these specimens prized by collectors.

Druse of fluorite crystals, with luster and cube-shaped edges and dodecahedron bevels. Violet to bluish in color depending on the incident light. From this classic Asturian locality for fluorite.

The celestine specimens from the Torà and Ivorra regions are a classic of Catalan mineralogy. They have been found in different areas of both municipalities. This specimen comes from test pits taken near Torà, on slopes that are now covered and prohibited for searching due to the destruction caused by some prospectors in the past. Pointed prismatic crystals, slightly bluish-gray in color, are found in cavities lined with calcite, in a carbonate marl matrix.

The celestine specimens from the Torà and Ivorra regions are a classic of Catalan mineralogy. They have been found in different areas of both municipalities. This specimen comes from test pits taken near Torà, on slopes that are now covered and prohibited for searching due to the destruction caused by some prospectors in the past. Pointed prismatic crystals, slightly bluish-gray in color, are found in cavities lined with calcite, in a carbonate marl matrix.

The celestine specimens from the Torà and Ivorra regions are a classic of Catalan mineralogy. They have been found in different areas of both municipalities. This specimen comes from test pits taken near Torà, on slopes that are now covered and prohibited for searching due to the destruction caused by some prospectors in the past. Pointed prismatic crystals, slightly bluish-gray in color, are found in cavities lined with calcite, in a carbonate marl matrix.

A very good-sized fluorite specimen formed by several cubic crystals, growing in parallel and in staggered forms. Its faces show polysynthetic growths and its edges are beveled by the dodecahedron. It is transparent and brilliant. The internal color is slightly violet, depending on the light, but the fluorite is colorless, as is typical at this Asturian deposit. It is accompanied by several good-sized prismatic barite crystals, interspersed with small chalcopyrite crystals. A very aesthetic specimen.

260 €

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The celestine specimens from the Torà and Ivorra regions are a classic of Catalan mineralogy. They have been found in different areas of both municipalities. This specimen comes from test pits taken near Torà, on slopes that are now covered and prohibited for searching due to the destruction caused by some prospectors in the past. Pointed prismatic crystals, slightly bluish-gray in color, are found in cavities lined with calcite, in a carbonate marl matrix.

The celestine specimens from the Torà and Ivorra regions are a classic of Catalan mineralogy. They have been found in different areas of both municipalities. This specimen comes from test pits taken near Torà, on slopes that are now covered and prohibited for searching due to the destruction caused by some prospectors in the past. Pointed prismatic crystals, slightly bluish-gray in color, are found in cavities lined with calcite, in a carbonate marl matrix.

A rich group of hexagonal prismatic pyromorphite crystals, slightly barrel-shaped, with luster and a color that varies from yellowish green in the middle to light green at the ends. This specimen comes from a German collection.

A group of cubic fluorite crystals, ranging in color from purple to violet depending on the incident light. Well-defined faces and edges, luster, and transparency. On the back, they are partially covered with quartz microcrystals.

The tinticite nodules from the Bruguers mines are perhaps the most characteristic of the species. They are found in two forms: sometimes in the hard dolomitic rock, which allows sections to be seen, and sometimes in a limonite matrix, which allows their kidney-shaped shape to be observed and even easy to extract. We recommend visiting the book I recently published about this famous Catalan mine: : Mines i minerals de la serra de les Ferreres. Les mines de Rocabruna, Bruguers, Gavà, el Baix Llobregat, Catalunya.

The tinticite nodules from the Bruguers mines are perhaps the most characteristic of the species. They are found in two forms: sometimes in the hard dolomitic rock, which allows sections to be seen, and sometimes in a limonite matrix, which allows their kidney-shaped shape to be observed and even easy to extract. We recommend visiting the book I recently published about this famous Catalan mine: : Mines i minerals de la serra de les Ferreres. Les mines de Rocabruna, Bruguers, Gavà, el Baix Llobregat, Catalunya.

The tinticite nodules from the Bruguers mines are perhaps the most characteristic of the species. They are found in two forms: sometimes in the hard dolomitic rock, which allows sections to be seen, and sometimes in a limonite matrix, which allows their kidney-shaped shape to be observed and even easy to extract. We recommend visiting the book I recently published about this famous Catalan mine: : Mines i minerals de la serra de les Ferreres. Les mines de Rocabruna, Bruguers, Gavà, el Baix Llobregat, Catalunya.

These specimens from the Turó de Montcada quarry are characterized by a breccia-like appearance formed by ampelitic slate cemented with variscite, thanks to the hydrothermal fluids that circulated between them. It shows a polished section that can allow us to observe different colour tones, between green and white. This led us to consider the possibility of an alteration of the variscite that had converted it into crandallite, but X-ray diffraction studies determined that it was dehydrated variscite with minor strengite. We will send the analytical results to the buyer.

40 €

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These specimens from the Turó de Montcada quarry are characterized by a breccia-like appearance formed by ampelitic slate cemented with variscite, thanks to the hydrothermal fluids that circulated between them. It shows a polished section that can allow us to observe different colour tones, between green and white. This led us to consider the possibility of an alteration of the variscite that had converted it into crandallite, but X-ray diffraction studies determined that it was dehydrated variscite with minor strengite. We will send the analytical results to the buyer.

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These specimens from the Turó de Montcada quarry are characterized by a breccia-like appearance formed by ampelitic slate cemented with variscite, thanks to the hydrothermal fluids that circulated between them. It shows a polished section that can allow us to observe different colour tones, between green and white. This led us to consider the possibility of an alteration of the variscite that had converted it into crandallite, but X-ray diffraction studies determined that it was dehydrated variscite with minor strengite. We will send the analytical results to the buyer.

50 €

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This specimen of menilite opal is very characteristic of this Granada locality. We can see different rounded figures, dolls, or ninots (in Catalan), which have adhered to each other to form a single piece. A curiosity of Spanish mineralogy.

This specimen of menilite opal is very characteristic of this Granada locality. We can see different rounded figures, dolls, or ninots (in Catalan), which have adhered to each other to form a single piece. A curiosity of Spanish mineralogy.

We highlight the locality of this specimen, unusual in collections, a granite quarry located north of the Porriño batholith. It consists of several good-sized microcline crystals partially covered by aggregates of foliaceous clinochlore crystals. It comes from the Jaime Murria collection (Barcelona).

These specimens from the Turó de Montcada quarry are characterized by a breccia-like appearance formed by different fragments of ampelitic slate cemented with variscite, thanks to the hydrothermal fluids that circulated between them. We can see different colour tones, between green and white. This led us to consider the possibility of an alteration of the variscite that had converted it into crandallite, but X-ray diffraction studies determined that it was dehydrated variscite with minor strengite. We will send the analytical results to the buyer.

60 €

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These specimens from the Turó de Montcada quarry are characterized by a breccia-like appearance formed by different fragments of ampelitic slate cemented with variscite, thanks to the hydrothermal fluids that circulated between them. We can see different colour tones, between green and white. This led us to consider the possibility of an alteration of the variscite that had converted it into crandallite, but X-ray diffraction studies determined that it was dehydrated variscite. We will send the analytical results to the buyer.

65 €

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Fehrite is a new species found in Almeria (Spain). Years ago (2012) we identified this species in the Les Ferreres mine (Camprodon) but unfortunatelly we didn't have enough sample to finish detrmination and structural studies. Recently we found some more samples and the characterization was carried out based on the results obtained from the application of various analytical techniques: SEM-EDS, Raman and X-ray diffraction. Les Ferreres mine is the second locality worldwide for the species. We will send all reports to the buyer. In this Catalan mine, fehrite appears as elongated elongated tabular to fibrous crystals, with a delicate bluish-green tone, and fibrous terminations. Usually, it is accompanied by devilline (blue) and brochantite (green). It is the magnesium analogue of ktenasite.

50 €

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An old Spanish specimen pyromorphite formed by numerous crystals, with hexagonal prism shape and a very characteristic yellowish-green colour. The luster is very good. These specimens are difficult to see in the market. It is accompanied by a handwritten label in German.

120 €

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A fine specimen of cinnabar from the classic Spanish mine, Escarlati, in León. This specimen shows various aggregates of interpenetrating mercury sulfide crystals, with good color and visible octahedral shapes. They are arranged on a porous matrix that had been covered with calcite but was removed chemically. Only in this way can we enjoy these crystals. It comes from the Jaime Murria collection (Barcelona).

110 €

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