Find specimens of this rare arsenite-silicate is a hard job. In this specimen we have an aggregate of crystals of asbecasite, with a good orange color, with some visible faces, but fragmented. It is accompanied in the matrix by chlorite, quartz and epidote crystals. A specimen to represent the species in a systematic collection. From the type locality for the species.

Druse formed by developed orthoclase crystals showing twins and complex combinations those we left for crystallography lovers. Good brilliance, defined edges and faces, uniform color, slightly marbled... A piece of quality, from a well-known locality.

Cluster formed by well developed orthoclase crystals showing twins and complex combinations those we left for crystallography lovers. They present some faces with hopper-like forms. Good brilliance, defined edges and faces, uniform color, slightly marbled... A piece of quality, from a well-known locality.

In this specimen we can observe two generations of aurichalcite. A first generation as small rosettes formed by lanceolate greenish crystals and second with thiner crystals, needle-like, some of which are included in rhombohedral calcite crystals, with a light blue color. Stand in a very aesthetic way on the matrix of goethite. A very balanced sample.

A very rich specimen of this rare sulphosalt showing brilliant and sharp franckeite lanceolate crystals forming globular aggregates. They are accompanied by delicate and shiny needles of jamesonite and idiomorphic crystals stannite with a brown color and dull. This combination makes these samples pieces very interesting for systematic mineral collectors. We have analized each species and we will send analysis to the buyer.

Specimens from this mine are hard to distinguish from those of the neighboring San Jose mine and, since the administrative office for both mines was at San Jose, most Itos mine specimens in foreign collections ended up labelled "San Jose mine".

Rich group of quartz crystals (var. amethyst) those show good transparency and color zoning on the terminal top faces, colorless in the prism. Very well defined and developed prism faces. Aerially disposed on a matrix with small crystals of quartz and epidote. Very aesthetic miniature.

A very sharp emerald crystal "trapped" between calcite crystals. The color, transparence and brilliance of these crystal are more than excellent. It shows a very defined prism, with a perfect top pinacoidal face and hints faces of the dipyramid, observed between the prism and the pinacoid. Some interesting color zoning can be observed in its lower part. A true gemmy miniature.

A gemmy emerald crystal with an intense color, disposed very aerial on a matrix with calcite and small crystals of the same mineral. It shows a developed prism, with curious growths on faces, and a terminal pinacoid showing natural corrosion forms and a small dent, which does not affect its aesthetics. Good transparence and brilliance. Good choice with an excellent price.

Group of very nice elbaite crystals, one of them with a good size, transparence and marked color zoning. They are accompanied by a rich group of clevelandite crystals very aerial disposed. We can observe groups of developed lepidolite crystals those give an aesthetic touch to the specimen.

Group of divergent elbaite crystals with good brilliance, defined prismatic faces and complex terminals, almost needle. Good transparence that reveals green color, violet at the upper terminal faces and a delicate red tone in the crystal core. The color zoning is very marked. A gemmy specimen.

A huge size specimen formed by a large group of brilliant pentadodecahedron pyrite crystals. With an excellent luster, gold color and very well defined faces and edges. On a solid matrix of hematite crystals. A specimen for the best display.

A very curious aquamarine crystal showing a well developed prism and a very interesting termination, not very common for the species. We can see at the top, the sharp faces of the dipyramid. On this terminal faces have grown another crystals finishing on the top by a dipyramid truncated by the pinacoid. It has a slight bluish tone. Transparence and brilliance are very good. It is very vertically disposed on albite crystals matrix. A crystallographic gemmy specimen.

Group of cubic fluorite crystals showing well defined faces and edges, with echeloned polysynthetic growth. Excellent transparence and blue to colorless depending on light source. On a quartz layered rocky matrix. A sample with characteristics that make it very interesting for fluorite collectors and from a classic Spanish locality.

Group of cubic fluorite crystals those show defined faces and edges with very interesting staggered polycrystalline growths. Its color varies from bluish violet to purple depending on the type of incident light. Good transparency showing us some color zoning. An aesthetic specimen from a classic Asturian locality.

On a milky quartz matrix we can enjoy some cubic fluorite crystals. One notable for its size. It shows transparency and color zoning. This color zoning is very interesting because it takes the form of an octahedron with an intense violet included in a colorless cube. It is not easy to find samples of fluorite from Cerro Muriano; so even a small dent in a corner, this piece is great quality for the locality.

This specimen shows stalactític aggregates of rhodochrosite with a pink color. They are accompanied by brilliant botryoidal kentrolite, with a deep black color. It is a rare lead and manganese silicate. Nice specimen for the species and dedicated to systematic and French collectors.

This specimen shows parallel growths on a single axis, so typical of the finds from N'Chwanning mine. The tetrahedral crystals are brilliant with very well defined faces and edges and showing echeloned and skeletal growths. Good size for species.

Very aesthetic group of aerial malachite crystals pseudomorphic after azurite showing a tabular shape with rounded faces. Color is deep green with a very well marked velvet luster. Good specimen from Milpillas.

Large group of cubic fluorite crystals showing well defined faces and edges. The yellow honey color, brilliance and transparency of the crystals give a very aesthetic touch to this piece. Viewed under magnification they are peppered by small globular aggregates of pyrite. It is accompanied by white dolomite.

In this specimen we have a very curious combination of erythrite forms. On the one hand, globular aggregates of this arsenate formed by needle like crystals with a velvet luster and a pale pink color. On the other hand, groups of lanceolated crystals with defined faces and edges, good transparence and deep purple color. All of them are disposed on a matrix with sharp cube octahedron skutterudite crystals. A fine specimen for this Moroccan locality.

A brilliant and very sharp bixbyite crystal. A manganese oxyde well-known and appreciated by collector for its rich crystallographic forms. In this specimen we can see the cubic main form with vertex truncated by trapezohedron and a small triangular octahedron face. A crystallographic pleasure... Very aesthetically disposed on a volcanic rocky matrix. With an old display label.

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Very curious group of interpenetrated leucite crystals pseudomorphosed by feldspar. A classic from Czech Republic appreciated by pseudomorph collectors. Good size.

Brilliant and elongated gold nugget that suggests rounded and flattened subhedric crystals. It belongs from an area known till the middle of last decade for its gold nuggets. The sample shows a good size. An opportunity to add a Spanish gold to your collection. Weight: 3.49 g. / 0,1231 oz.

Brilliant gold nugget that suggests rounded subhedric crystals and a surface with concavities. It presents quartz granules as inclusion. It belongs from an area known till the middle of last decade for its gold nuggets. The sample shows a good size. An opportunity to add a Spanish gold to your collection. Weight: 2.99 g. / 0,1055 oz.

A huge size specimen showing botryoidal aggregates of rosasite, with a velvet appearance and intense blue-green pastel tones. They are peppered with small but brilliant calcite crystals with a pseudooctahedron shape. On a limonite matrix.