An epidote specimen from an unusual North American locality. It occurs as parallel aggregates of very elongated prismatic to acicular crystals, with terminal faces, green in color and transparent.

Size: 4.2 x 1.2 x 0.7 cm.
Found in ±1980.

Col. Manchion (Barcelona).

Numerous well-defined and interpenetrated sphalerite crystals are arranged on a matrix with quartz crystals, accompanied by pyrite crystals. In the upper part, a group of chalcopyrite crystals with some indentation, which allows us to see the color and brilliance.

Size: 6 x 4.4 x 4.3 cm.
Main crystal: 1.6 cm.
Found in ±1984.

Col. Manchion (Barcelona).

In a vug of the matrix there are numerous complete and brilliant dioptase crystals with the characteristic intense green color. They are accompanied by small yellow crystals of duftite, on calcite rhombohedra. A very aesthetic classic from this mine.

Size: 6.4 x 6 x 5 cm.
Main crystal: 3 mm.
Found in ±1980.

Quartz specimen with marked "window" growths with inclusions. These Allos pass crystals are not very common on the market. Allos pass is situated on the edge of Mercantour National Park approximately 20 km from the small village of Barcelonnette.

Size: 8.5 x 6.3 x 3 cm.

Group of octahedral pyrite crystals, very brilliant and well defined, which are accompanied by complex crystals of sphalerite. On them we observed numerous white globular crandallite aggregates (analyzed by XRD). This combination of minerals is unusual in the deposit, with this phosphate being the first citation.

Size: 5.5 x 5.3 x 2.7 cm.

Specimen of native silver from this more than classic Mexican locality such as Batopilas. This specimen shows numerous herringbone-patterned, arborescent and skeletal silver aggregates formed by crystals spinel-twin, very elegant and with luster and colour. They are disposed aerially on a matrix with calcite. Finding specimens of this quality and size (and price) from this mine is not easy at all. It belongs from a former Austrian collection.

Size: 4.6 x 4.4 x 3.1 cm.
Main crystal: 32 mm.
Found in ±1960.

Col. F. Schweiger (Wien).
Classic locality

Very thick and good size stibnite crystal from this classic Romanian mine. It presents an elongated prism, striated, with an excellent brightness. Very rich in facets in the upper terminal part, with complex bipyramidal faces. On the main crystal we observe a group of crystals of the same mineral, finer, that suppose a second crystallization. Nowadays it is difficult to find specimens of this quality from this mine. It comes from a former Austrian collection.

Size: 6.9 x 1.7 x 1.8 cm.
Found in ±1970.

Col. F. Schweiger (Wien).

More than an excellent specimen from Herja mine, a world-class Romanian locality for stibnite. This piece, of a very good size, is formed by several groups of thick prismatic crystals with visible terminal faces. We can observe a second generation of thin crystals. Nowadays it is difficult to find samples of this quality, for museum display cases. It belongs from a former Austrian collection.

Size: 13 x 5.7 x 4.5 cm.
Main crystal: 11 x 0.6 cm.
Found in ±1980.

Col. F. Schweiger (Wien).
Classic locality

Very rich group of sharp chalcocite crystals, some isolated and other interpenetrated, tabular and with very clear twinned pseudohexagonal forms. Intense metallic luster, gray color. They stand out on a matrix of bright calcite and small tennantite crystals. The specimens of this locality are very rare. Novelty in Sainte-Marie-aux-Mines 2017. The Mantos Cobrizos mine is a type of "mantle" deposit. This is a small Cu deposit, located in the mining district of Los Cóndores, close to Paipote, Copiapó. So far the production has been made a small scale.

Size: 7.2 x 6.6 x 3.7 cm.

Very brilliant specimen formed by various cerussite crystals, with a cyclic twin, well defined and translucent. They exhibit intense yellow fluorescence under LW-UV light. They are disposed on an upholstered matrix of small crystals of the same species and, to give an aesthetic touch, a group of orange baryte crystals.

Size: 5.8 x 5.8 x 4.2 cm.
Main crystal: 23 x 21 mm.
Found in 2018.

Col. A. Arguijo (L'Hospitalet de Llobregat, Barcelona).
Fluorescent under long wave UV

Esthetic specimen formed by groups of lepidolite mica, bright and defined, on which we observe see a brilliant topaz crystal, slightly bluish and faceted, with excellent transparency. Uncommon on matrix. With old handwritten label.

Size: 5 x 4.5 x 3 cm.
Main crystal: 10 mm. top.
Found in ±1990.

Col. H.G. Hopper.

Achtaragdite is a unique, rare and poorly understood pseudomorph, from this remote Siberian locality that is the Type Locality for grossular garnet. It is a variety of the grossular-hibschite garnet series and is (technically, according to mindat) a hydrogrossular-chlorite-carbonate pseudomorph after what was formerly considered to be wadalite or some other rare hydrogarnet. The real precursor mineral for these pseudomorphs is now considered to be helvite.

Size: 4.7 x 4.5 x 3.9 cm.

Excellent specimen of galena, with very good luster. It shows forms of the cube and the octahedron, twinned. It has very aesthetic skeletal and ochy growths. The mine produced specimens of this quality a few years ago and now it is increasingly difficult to find them.

Size: 5 x 4.6 x 3.3 cm.
Found in ±2008.

These pyrite specimens from this Bulgarian mining area are very aesthetic, highlighting the complex forms and penetration twins they present. Good luster and color. They are accompanied by crystals of quartz on the matrix. It comes from a mining area known as the Septemvri mine, which includes the following deposits: Sharenka, Baram, Mogilata, Osikovo and Pechinsko.

Size: 4.2 x 3.8 x 3.5 cm.
Main crystal: 1.6 cm.

These baryte crystals are very different from the usual ones that we can see coming from this Moroccan locality and even from other deposits famous for baryte. These are prisms of different orders, the predominant third order, truncated by the second order. We observe that a white geometric growth has formed and only affects certain faces of the rhombic prisms. This zoning is unusual for the species. The crystals are transparent and brilliant.

Size: 7.8 x 4 x 1.3 cm.
Found in 2021.

Very aesthetic aggregates of epidote crystals forming beams, with brilliance, defined and with this classic green color. They are disposed on the matrix with quartz crystals, forming very interesting concentric growths.

Size: 6.7 x 5.7 x 2.8 cm.
Main crystal: 9 mm.
Found in 2021.

Very aesthetic aggregates of epidote crystals forming beams, with brilliance, defined and with a classic green color. They are arranged in groups and in an isolated way on the matrix with quartz crystals, on which they stand out.

Size: 7 x 5.5 x 2.8 cm.
Main crystal: 9 mm.
Found in 2021.

Very rich chabazite-Ca specimen, with defined and brilliant crystals, those cover one side of the matrix, while on the other we can see numerous heulandite crystals with groups of chabazite-Ca in the upper part. This specimen belongs from the Faroe Islands (Færøerne, which means "islands of lambs"), an autonomous territory of the Kingdom of Denmark, made up of a small archipelago in the North Atlantic, between the United Kingdom, Norway and Iceland. It is not easy to find zeolites from this area.

Size: 8 x 5.5 x 4 cm.
Main crystal: 1.9 cm.

Group of cubic to prismatic fluorite crystals, translucent, with a color between violet to purple depending on the incident light. A good size specimen with a matrix on the back. From this classic Moroccan mine.

Size: 7.6 x 5.2 x 3.3 cm.
Main crystal: 2 cm.
Found in 2020.

These specimens show us a chalcopyrite matrix partially transformed into irisdecent covellite-bornite and goethite. In the cavities there are numerous aggregates of prismatic malachite crystals, of an intense green, with transparency and brilliance. If we observe them with the magnifying glass we can see that they are faceted crystals. A novelty in the Bleida mines area.

Size: 8 x 5.9 x 5.7 cm.
Found in 2021.

A novelty from the Bleida mines. Groups of malachite crystals, prismatic to needle like, forming velvety aggregates with intense brilliance and color. They are disposed in the cavities of a quartz and dolomite matrix, with cuprite.

Size: 5.3 x 3.5 x 2.7 cm.
Found in 2021.

These pyrite specimens from this Bulgarian mining area are very aesthetic, highlighting the complex forms and penetration twins they present. Good luster and color. They are accompanied by crystals of quartz, sphalerite and brilliant chalcopyrite on the matrix. It comes from a mining area known as the Septemvri mine, which includes the following deposits: Sharenka, Baram, Mogilata, Osikovo and Pechinsko.

Size: 3.8 x 2.2 x 2.1 cm.
Main crystal: 1.8 cm.

These pyrite specimens from this Bulgarian mining area are very aesthetic, highlighting the complex forms. Good luster and color. They are accompanied by crystals of quartz, sphalerite and brilliant chalcopyrite on the matrix. It comes from a mining area known as the Septemvri mine, which includes the following deposits: Sharenka, Baram, Mogilata, Osikovo and Pechinsko.

Size: 3.3 x 2.9 x 1.5 cm.
Main crystal: 2.5 cm.

These pyrite specimens from this Bulgarian mining area are very aesthetic, highlighting the complex forms and penetration twins they present. Good luster and color. They are accompanied by crystals of quartz, sphalerite and brilliant chalcopyrite on the matrix. It comes from a mining area known as the Septemvri mine, which includes the following deposits: Sharenka, Baram, Mogilata, Osikovo and Pechinsko.

Size: 4.4 x 3.3 x 2.5 cm.
Main crystal: 2.3 cm.

A novelty from the Bleida mines. Groups of malachite crystals, prismatic to needle like, forming velvety aggregates with intense brilliance and color. They are disposed in the cavities of a quartz and dolomite matrix, with chalcopyrite and bornite.

Size: 10 x 9 x 7 cm.
Found in 2021.