Rich group of wulfenite crystals, bright, slightly color from yellow to orange. Crystallized in both sides. Most are intact, something unusual in the specimens of this site. From the former collection of J.M. Manchion.

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Tetrahedrite crystals of this Asturian mine are well known and appreciated by Spanish mineral collectors. In this specimen we have several tetrahedral crystals, also tristetrahedron shape could be appreciated. Good size and partially coated by malachite. A Spanish classic.

Specimen of native copper with arborescent and dendritic growths formed by rounded crystals, partially covered with cuprite. Good size. From this classic Moroccan mine.

Aesthetic specimen formed by numerous isolated wendwilsonite crystals of good size, very well defined, some of them doubly terminated, with an intense and reddish tone. Some of them partially covered by a whitish patina only on certain faces, selectively. They are disposed on a matrix with calcite and dolomite crystals.

A group of fluorite crystals those, at first glance, seem just octahedra, but if you take a look carefully you will see complex terminations. Green color and dull luster. Acompanied by small quartz crystals. A classic from the former Manchion (Barcelona) collection, collected by himself in January, 1986.

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Rich group of  spessartine crystals, well defined, with faces of the trapezohedron and dodecahedron. Transparent, gemmy and with the characteristic orange colour, on matrix.

Excellent gemmy anglesite specimen that shows a group of crystals with a razor-sharp chisel terminations, striated faces characteristic of the species, very sharp and with good transparency and uniform yellow color.
This specimen date to the late 1970s and were found in the well known Moroccan mining area of Touissit. They are considered the world's finest anglesite specimens. Here we offer this "old" specimen from glorious past times.

The matrix of this sample is defined by a druse of quartz crystals, between milky and hyaline, very well defined, short prism and brilliance. These crystals are peppered by various pyrite aggregates. What stands out, very aerial, is a group of barite tabular crystals, very bright, also dotted with small pyrite-marcasite crystals. An exceptional piece for display, excellent for this mine.

A first line arsenopyrite specimen from Panasqueira. It is a large group of prismatic lanceolate crystals of brilliant arsenopyrite, very defined, interpenetrated, with striated faces, ultimately: pure aesthetics. And to give it a touch of excellence we have a group of fluorapatite crystals, brilliant, transparent and with an uniform green tone. A more than worthy representative from this classic Portuguese mine.

A huge size group of interpenetrated crystals of hexagonal shape, with a dark gray metallic color and brilliant luster. Crystals of this specimen remind wurtzite for its complex hexagonal shape and dipyramids observed. Many similar samples from this mine has been classified as wurtzite. For this reason we heve proceeded to analyze them. The results indicate that this is a really amazing and interesting pseudomorphosis of sphalerite after wurtzite. A great opportunity for psedomorph and Bolivian mineral collectors.
Studies were carried on by X-ray diffraction of the matrix and hexagonal crystals. They have shown that it is sphalerite. Also, the Raman spectra shows that in the innermost areas of the crystals wurtzite presence has been detected, the rest is sphalerite. SEM-EDS yield a composition:  (Zn1.05,Fe0.09)Σ=1.14S1.00.
Specimens of well developed wurtzite are unusual. This hexagonal zinc sulphide, with some iron, presents dimorphism with sphalerite. It is known that wurtzite is stable at high temperatures, low temperatures being the most stable phase sphalerite. This Bolivian mine is the type locality for the wurtzite. We will send the analysis reports to the specimen buyer.

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Marcassite specimens from Reocín mine are a classic of the Spanish mineralogy. This piece, of very good size (16 cm/ 6.3 in), is a worthy representative of this species. It presents numerous well-defined crystals, most of them showing the "cock's comb" twinned habit. The brightness is very remarkable. The specimen is more than 20 years old and does not present any alteration, favored by the carbonate matrix. A definitive piece for fine displays.

Very curious group of calcite crystals showing forms twinned. Bright, with defined faces and curved edges. They are accompanied by aggregates of tiny crystals of pyrite, partially included in the calcite. Reddish fluorescence under UV light. Uncommon Moroccan specimens.

Very curious group of calcite crystals showing forms twinned. Bright, with defined faces and curved edges. They are accompanied by aggregates of tiny crystals of pyrite, partially included in the calcite. Reddish fluorescence under UV light. Uncommon Moroccan specimens.

Rich group of hexagonal prismatic pyromorphite crystals. Some of them with hoppered forms and marked color zoning. Excellent green color, brilliance and with translucent crystals. A specimen of good size and exceptional quality. Today it is difficult to find them in the market, if we take note that they were seen more often years ago.

Radiated aggregates and sprays of colourless to white rauenthalite crystals, transparence and with brilliance. Accompanied by gypsum, erythrite and mammillated, creamy monohydrocalcite. Rauenthalite is a very rare hydrated calcium arsenate.

Gray djurleite well defined crystals (largest group 9 mm) interpenetrated, showing octahedral forms, with triangular faces. On a matrix of copper sulphides. As usual of these specimens, they may actually correspond to phases of djurleite-chalcocite. We can consider the specimens of Las Cruces mine among the best worldwide. From the former Povill collection.

Excellent group of prismatic, slightly barrel-shaped crystals of pyromorphite. They show defined faces, with parallel growths and hoppered terminations, very brilliant. The green color is very good. Very aerial, skeletal, a first class piece. Nowadays it is not easy to find samples with this quality, remembering past times in which they were seen more often.

This specimen of good size and quality comes from a classic North American locality for the species. Numerous pink crystals of inesite coat the interior of a vug in the matrix. Crystals of inesite are very sharp and brilliant. A good piece of this ancientlocality.

Topaz crystal aesthetically disposed on a rhyolite matrix. It shows several faces very well defined, with an excellent transparency and a uniform tone. From a classic locality.

Group of cubic crystals of fluorite, with transparency, color between purple to violet, with polysynthetic growths on the faces, very defined. A Spanish classic.

Specimen with many years, from the Daunis collection (Barcelona), with the handwritten label. There are several groups of sphalerite crystals, brilliant, translucent with an intense orange color when the light passes through them. They are disposed on a matrix with dolomite crystals. The sample has not been treated, so it presents some areas with small scratches, typical of the time. A great sample from this classic Spanish mine.

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Rich group of microcline crystals, some of them with the Mannebach twin, well defined. Specimen belonging to the collection of Sr. Manchion, acquired at the Sant Celoni mineral show in March 1985. A piece with history.

Large crystals of staurolite included in micaceous schist from this classic Spanish area. The formation of metamorphic materials of the Oriental Guadarrama range, with a medium grade regional metamorphism, includes banded shales with almandine, sillimanite, distena and andalusite.

Historically the most representative fluorite specimens from mina Moscona are yellow, recently some of violet tones have been collected. This ancient specimen is one of the few that appeared in the mine with this pink to purple color, with zoning. It is a floater, formed by growths of cubic crystals with faces with polysynthetic growths, very brilliant and translucent. They are partially covered with sharp tabular barite crystals, between transparent to opaque on the outer edges. No damage, good size and fluorescent (UV-LW). A very unusual piece for this classic Spanish mine, from a former German collection.

Group of cubic fluorite crystals, with defined edges and faces with tiled growths. Good brilliance, translucent to transparent and intense violet-purple color with marked geometric zoning. When the light passes through them, a purple tone is shown and the lines of growth are observed. On one of the crystals there is a small group of calcite crystals. A fine quality fluorite.