Excellent specimen of bournonite from this classic Kosovar mine. Several crystals of this lead and copper sulfoantimonide are disposed on a matrix formed by brilliant crystals of pyrite, sphalerite and galena. The bournonite presents visible cyclic twins, semi-matt luster, with chalcopyrite.

220 €

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A very good-sized specimen with an aggregate of brilliant aegirine crystals of an intense green, almost black colour, with well-defined faces and edges. It is accompanied by green fibrous crystals of arfvedsonite. They are disposed in a matrix of orthoclase crystals with quartz.

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Initially, some lunar meteorites were found by a nomad while he was grazing in the Bechar DCA in Algeria. Adrián Contreras Gómez and Carlos Muñecas Muñoz organized a search expedition including four local people for 14 days in June 2022 in the area 9.0 km heading 94.7° from Bechar 003. A large number of pieces of different sizes were found at the surface and subsurface.
The cut face shows the interior has a brecciated texture composed of light-colored clasts within a darker matrix. Sample is a partially vesicular polymict feldspathic breccia composed of mm-sized lithic clasts and abundant shocked mineral clasts. Lithic clasts show poikilitic, granulitic and shock melted vitric brecciated textures. Additional minerals are: FeNi metal, ilmenite, troilite and rare phosphate minerals.
Bechar 007 30°53.62’N, 3°23.7017’O, Bechar, Algeria. Find: June 2022. Classification: Lunar meteorite (feldspathic breccia).

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Specimen of purpurite with an intense violet colour. It is accompanied by other phosphates. In the words of Antonio Manuel Inácio Martins: -"Purpurite is lilac, triphylite is brown, rockbridgeite is green dark and stewartite is yellowed... crazy phosphates". Enjoy the sample.

50 €

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Specimen of purpurite with an intense violet colour. It is accompanied by other phosphates. In the words of Antonio Manuel Inácio Martins: -"Purpurite is lilac, triphylite is brown, rockbridgeite is green dark and stewartite is yellowed... crazy phosphates". Enjoy the sample.

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Specimen of purpurite with an intense violet colour. It is accompanied by other phosphates. In the words of Antonio Manuel Inácio Martins: -"Purpurite is lilac, triphylite is brown, rockbridgeite is green dark and stewartite is yellowed... crazy phosphates". Enjoy the sample.

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Malachite specimens from this Upper Katanga mine are notable for radial aggregates of fine crystals that, taken together, have a velvety appearance and excellent brilliance. Intense green colour, good size and fine aesthetics.

Malachite specimens from this Upper Katanga mine are notable for radial aggregates of fine crystals that, taken together, have a velvety appearance and excellent brilliance. Intense green colour, good size and fine aesthetics.

Malachite specimens from this Upper Katanga mine are notable for radial aggregates of fine crystals that, taken together, have a velvety appearance and excellent brilliance. Intense green colour, good size and fine aesthetics.

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Numerous rhodochrosite crystals are disposed on a druse of quartz crystals, defined, transparent to translucent. They present a very remarkable richness of faces, to be enjoyed under magnification, highlighting numerous reflection twins, with dull faces and bright faces alternating by geometry. A very aesthetic curiosity.

60 €

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A large group of rhodochrosite crystals, with pointed scalenohedron shapes but with striated faces and a very aesthetic pearly luster. The pink-red colour is more intense inside the crystals. It seems that a second generation of rhodochrosite has covered the primary crystals. It is accompanied by crystals of hyaline quartz, together with colourless, well-defined fluorite cubes with opaline faces, except at the vertices, a curious geometry. Aesthetic piece.

70 €

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Aesthetic specimen of cinnabar, of intense vermilion, found intimately interpenetrated between sheets of gypsum. Under magnification we can see the cyanbar inclusions through the transparent plaster. The specimen comes from this old mine near the Picos de Europa. Specimens like this are difficult to obtain.

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Group of rhombohedral calcite crystals of very good size, with defined faces and edges, with interpenetration twins. Slightly pinkish white in colour, matt faces. This specimen stands out for its intense fluorescence and more than notable fluorescence when illuminated with UV-LW light. It comes from the Jaime Murria collection (Barcelona).

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White to bluish spathic mass of tilleyte, a rare calcium carbonate silicate whose type locality is Crestmore. It is accompanied by merwintite (white), vesuvianite (bright brown), monticellite (cream-brown). Analysis will be sent to the buyer.

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Velvety layer of cyanotricite covering the qcalcite matrix with small fluorite cubic crystals. The colour is very attractive. It comes from J. Viñals and the E. Nicolau collection (Barcelona). Very aesthetic specimen.

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Group of geocronite-jordanite crystals, with striated pseudohexagonal shapes, very bright and rich in facets. The matrix is ​​mainly composed of geocronite-jordanite, with various cavities where we observe striated crystalline faces.The analyzes show a correlation between geocronite-jordanite, both are isostructural and form series. Crystals analyzed show that the composition moves in the intermediate zone of the series. The geocronite-jordanite crystals are accompanied by sphalerite, galena, associated with transparent crystals of green fluorite.

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Epitaxial growths of rutile on a tabular ilmenite crystal pseudomorphized by rutile and hematite. The bright red epitaxial rutile crystals form elbow twins. The pseudomorphized ilmenite crystal has very marked geometric growth forms. Good sized and fine specimen.
Aleksander Rečnik et al. (2015) indicates that this complete transformation involves three successive exsolutions processes: (1) exsolution of ilmenite lamellae from the primary ferrian-ilmenite, (2) exsolution of rutile lamellae from ilmenite triggered by oxidation of ferrous iron and remobilization of cations within the common oxygen sublattice and (3) exsolution of hematite precipitates from Fe-rich rutile lamellae. Remnants of all three processes can still be observed in the samples (Rečnik et al., 2015, Contributions to Mineralogy and Petrology).

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An excellent specimen of quartz, with a slight smoky tone, which presents very aesthetic "window" geometric growths. Doubly terminated and with complex crystallography. With inclusions.

A very rich specimen of getchellite, with laminar crystals in the matrix, brilliant and with a characteristic red wine colour, which differentiates it from realgar, which is bright red. It is accompanied by yellow orpiment. The formula for getchellite is AsSbS₃, and its type locality is this North American mine. From Frank Manus col. and Shannon & Sons label.

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The first specimens were found in the mines of Aït-Ahmane between 2014 and 2015. The best ones reached the market around 2017. They are twinned crystals of remarkable perfection for the species, formed by intergrowths of djurleite and chalcocite. No better specimens have been found in the area and probably worldwide.
Although some relatively recent analytical results (see mindat) indicated that they were crystals of djurleite only, others indicated that they were mixtures of both species. Realistically, djurleite and chalcocite often appear together in the same crystal, and one can even transform into the other depending on the physical-chemical conditions present. For this reason I have preferred to preserve the name of both species. Interesting article: Pósfai-Buseck Amer. Min. 1994.

1550 €

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In addition to its type locality in Namibia, skorpionite has also been determined in Tsumeb, so there are only two localities in the world where this species has been found. This fine specimen shows a layer of soft greenish colored crystals of tarbuttite which are coated by tiny white "needle"-like crystals of skorpionite and rose-like groups of white hemimorphite on matrix. An excellent piece for the species, very rare to see on the market.

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A very faceted tabular crystal of wulfenite. It stands out for its deep blue colour, which is unusual for this species. It belongs from the Bou Skour mine, where crystals of this type have been obtained, but they are usually very small, around a millimetre. This one measures 8 mm...

A specimen of this rare zinc phosphate formed by numerous tabular, well-defined, bright crystals with parallel and curved growths. They have a very characteristic light green colour. In the middle of the last decade, many samples of tarbuttite appeared from the Skorpion mine, but nowadays they are difficult to find.

Group of sphalerite crystals with parallel and polycrystalline growths, slightly curved on the faces and edges, transparent to translucent and shiny. When exposed to light from behind, it takes on a honeyed to greenish tone.

Aesthetic beryl, emerald variety, disposed very aerial on a carbonated matrix with calcite and pyrite. It is a prismatic, defined crystal, formed by axial growths and with defined terminal faces. Translucent and with an intense green colour. A fine gem.