Group of sharp vivianite crystals forming aggregates. Excellent brilliance and intense deep green color, visible at the terminal faces of the crystals. These minerals appear in phosphate vein, in fossiliferous areas, the phosphate source.

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Iceland was known historically for its zeolites, before than Indian ones flood the collections. In this old specimen of "desmin" we can enjoy a group of sharp stilbite crystals, with good size and notable luster. On matrix. A piece for leading mineral collectors.

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This specimen is really interesting not only for the quality of the crystal but the locality it comes from. Few specimens are represented in collections. This sample shows a brilliant metallic luster and sharp faces and edges. Located in a gully, this locality consists of outcropping hydrothermally-altered and weathered Wooltana volcanics containing veins and pockets of zeolites, calcite and crystallised ilmenite.

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Brilliant group of chalcopyrite crystals, twinned and with complex forms, but with well defined faces and edges. The golden color, with iridescence, indicates that it is a "old" specimen. The piece comes from an interesting and classic English locality where few chalcopyrite specimens are known with this quality. These specimens were obtained at the beginning of XX century, it is a very "old" mineralogical sample from Clemens A. Winkler, german chemist who discovered the Germanium.

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Defined beryl (var. emerald) crystal in a matrix micasquist. The color, transparency and luminosity of beryl are quite good. It shows a defined prism with top pinacoidal faces. The specimen is significant as a locality piece.

An old specimen collected in the 50s by L. Gautron in the pegmatite dikes those are located about 20 km SW of the city of Antsirabé, in the main highland of Madagascar. It is a euxenite-(Y) crystal showing defined faces and rounded edges, with good size. A historical specimen.

Group of aegirine parallel growth with very elongated crystals, bright faces and very sharp and acute termination. Almost black green that makes it stand out for its aerial position on a matrix of smoky quartz crystals. A nice gem.

Very elongated crystal of aegirine, brilliant, defined with clearly visible terminal faces. A very aerial and aesthetic piece.

A very aethetic miniature specimen of sérandite, showing a good salmon color. Defined and with a nice size... From the classic MSH.

A specimen for systematic collectors... A large group of needle-like colorless crystals (prismatic) of artinite, forming aesthetic rosettes. But in this sample we highlight some aggregates of desautelsite crystals, a rare manganese and magnesium carbonate found in very few locations. They are orange crystals forming groups together with the artinite.

A specimen for systematic collectors... A large group of needle-like colorless crystals (prismatic) of artinite, forming aesthetic rosettes. But in this sample we highlight some aggregates of desautelsite crystals, a rare manganese and magnesium carbonate found in very few locations. They are orange crystals forming groups together with the artinite.

Excellent groups formed by lamellar crystals of claraite, of an intense turquoise blue, on a matrix of dolomite and sulphides. It is accompanied by spheric aggregates of theisite crystals. Analysis results will be sent to the buyer.

Claraite is a rare copper and zinc carbonate which may contain sulfur and/or arsenic. Theisite is a rare copper and zinc arsenate-antimonate that has been described for the first time in this mine in the Catalan Pyrenees. These mineral species are the second citation in Spain.
We have published a book called "Rocabruna i el seu entorn. La mina de les Ferreres" where you could enjoy all species collected and determined until the date of publication (2014).

Very aerial calcite crystal showing the rhombohedral shape with very curious faces on edges belonging to other orders rhombohedron. Transparent to translucent, colorless and very bright. It is disposed on a matrix with dolomite. Calcite specimens from la Florida mines are known and valued worldwide. An aesthetic specimen from the Spanish mineralogy.

Very aesthetic quartz (eisenkiesel or Jacinto de Compostela var.) crystal, showing defined faces and edges, with a good size for the locality. Perfect luster, with deep red color. In a gypsum matrix. From a different Spanish locality than usual ones.

Very aesthetic quartz (eisenkiesel or Jacinto de Compostela var.) crystal, showing defined faces and edges, with a good size for the locality. Perfect luster, with deep red color. In a gypsum matrix. From a different Spanish locality than usual ones.

Exceptional specimen of fluorite from this classic French mine. It shows a group of cubic crystals, interpenetrating, brilliant, intense yellow-orange, translucent to transparent and tiled growths on their faces. It is accompanied by barite tabular crystals. A French classic with a brightness and superior quality for the locality.

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Group of cubic fluorite crystals, with defined faces and edges and polysynthetic growths. Purple color with zoning, more intense on edges and good transparency. Hard to see in collections.

Group of cubic fluorite crystals, with defined faces and edges and polysynthetic growths. Purple color with zoning and good transparency. Hard to see in collections.

Almandine crystal, rich in faces, with forms of the dodecahedron, and rounded edges. A classic of Spanish mineralogy, nowadays very difficult to see.

From a locality not represented in collections it is coming this specimen of aragonite. It shows aggregates of prismatic crystals, very sharp, in divergent growth, transparent and good brilliance. These specimens were collected in a nearby cliffs of two small volcanoes in the western end of the Cape Vert peninsula, near Dakar, in underground quarries. A mineral rarity.

A nice almandine crystals, one of them dominant, from a locality not well represented in collections. Defined, with faces with staggered growth. It is disposed on a matrix of feldspar and quartz.

A very rich druse of marcasite crystals those clearly show the cockscomb twin. Brilliant, defined and very aesthetic. A Spanish classic.

An excellent old classic from the American mineralogy. Really sharp crystals of hübnerite forming groups of parallel growths, some of them isolated. With the intense brown color and brilliance and an esthetic contrast with the snowy white matrix. Nowadays, it is very difficult to find specimens with this quality or any other quality...

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Everybody knows about Milpillas secondary copper minerals, but this locality is not well-known by the complex pyrite crystals coated by bornite. We propose one of the few specimens I have seen. In this sample we can see the dominant forms of the cube, but also the octahedron, surrounded by trapezohedron and possibly the dodecahedron on edges. Bright and well disposed in a solid matrix. It is a true crystallographic gem.

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An amazing rutile specimen with an exceptional quality for the locality and for the species. The famous rutile specimens of Kapudzhukh in Azerbaijan are already a classic. It is said, they appeared during the 90s, for only a period of two years. This specimen shows perfect faces, first and second order twins and dipyramids, and a more than outstanding definition.
According to explained by Rob Lavinsky, a limited number of pieces were collected during this short period. They were send to United States, at the hands of Bill Larson, through a former official of the KGB, nicknamed "Niki the Tank", who got into mineral collecting and dealing after the Wall fell. Honestly, this is one of those pieces that you dubt to keep or come off it...