Group of cassiterite crystals, very sharp, with defined faces and edges, good brilliance and transparence showing toasted honey lights. They show very clear cyclic twins. They are disposed very aerial and aesthetically contrasting on a matrix of quartz crystals with arsenopyrite. From a classic locality.

Group of cassiterite crystals, very sharp, with defined faces and edges, good brilliance and transparence showing toasted honey lights. They show very clear cyclic twins. They are disposed very aesthetically contrasting on a matrix of quartz crystals. From a classic locality.

Group of cassiterite crystals, very sharp, with defined faces and edges, good brilliance and transparence showing toasted honey lights. They show very clear cyclic twins. They are disposed very aesthetically contrasting on a matrix of quartz crystals with arsenopyrite. From a classic locality.

A rich cluster of hyaline quartz crytals from the famous Carrara Marble quarries of Italy. The ancients believed that water solidified in the form of hyaline quartz crystals... Viewing this specimen, its purity, transparence, brilliance and perfection, perhaps we can understand their interpretation. Snowy white marble matrix with dolomite crystals. An Italian gemm.

Very rich specimen formed by numerous prismatic crystals of wulfenite, with orange color. They are brilliant and disposed on the matrix. A specimen more than aesthetic historical, fine quality and from a classic Mexican locality.

Group of fluorite crystals with cubic habit, with good transparence that allows to see a marked color zoning. The main one, shows a cavity in which other fluorite crystals have grown. Very curious. It has a fluorite matrix with interpenetrated cubic pyrite crystals. From a classic Spanish locality.

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Piemontite specimens from this Swiss area are uncommon. We can see groups of prismatic radiated deep red piemontite crystals embeded and contrasting with the white quartz matrix. Accompanied by black layers of braunite. Piemontite has been analyzed (ARM1581) and we will send results to the buyer.

Piemontite specimens from this Swiss area are uncommon. We can see groups of prismatic radiated deep red piemontite crystals embeded and contrasting with the white quartz matrix. Accompanied by black layers of braunite. Piemontite has been analyzed (ARM1581) and we will send results to the buyer.

Aesthetic group of prismatic crystals of adamite, with good transparence and intense color. Crystals forming sheaves and isolated, defined. They are disposed on a matrix of goethite, with cavities partially covered by small globular aggregates of yellow tsumcorite-brackebuschite.

Excellent group of sphalerite crystals, twinned and with complex forms. With good brilliance and intense black color. Highlights one of these crystals that shows us a large number of faces, with cube, trapezohedron, tetrahedron forms... A true crystallographic gem, not easy to find. With a matrix of brilliant dolomite crystals and some arsenopyrite.

Aesthetic and good sized minyulite specimen that shows a rich group of prismatic acicular crystals. Minyulite is a rare aluminum and potassium fluorophosphate, which in this quarry has had a remarkable deposit. Few specimens were collected between the years 1999 and 2000. To increase quality, it is accompanied in the matrix by white crandallite crystals pseudom. after fluellite, transparent and defined crystals of fluellite and stalactitic globular aggregates of metavariscite with a greenish tone. These specimens are impossible to obtain today.

This is one of the last fluellite specimens obtained from the fissure appeared in March 2000, where beautiful specimens of this rare phosphate were collected. This specimen was in the discoverer's collection for years. IVery well defined crystals, showing dipyramidal forms truncated by pinacoid, colorless to slightly violet, on a brilliant iridiscent matrix. A very distinctive specimen of the usual for this Navarrese mine, where it is impossible to get specimens. An opportunity to get a historical and very displayable specimen.

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 some crystals, one predominant, 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.

Very aesthetic aggregates of lenticular azurite crystals forming these showy rosettes. Intense blue color. They are disposed very aerially on a matrix of malachite. No damage, perfect. A colorful classic of American mineralogy.

Destinezite is a rare iron phosphate-sulphate, and its type locality is Argenteau (Belgium). This specimen that we present comes from this Belgian locality. It shows the characteristic shape, nodular, with a beige tone. Nowadays is impossible to collect there.

Probably čechite specimens from the "Rasa de l'Alzina" open pit works could be considered between the best crystals for the species worldwide. They are brilliant, black color and show a tabular shape defined by different order orthorhombic prisms and developed pinacoidal faces. They are disposed on a fluorite matrix. This finding is close to the Maria Magdalena mine, near of the beautiful town of Ulldemolins (Tarragona, Catalonia).
SEM-EDS and EPMA analysis show that, in some cases, on the čechite crystal surface we found copper content, but inside the crystal is near to pure PbFe²⁺(VO₄)(OH), with minor Zn(II). In most specimens from other localities the presence of manganese is important, but these specimens are Mn free.

A very curious specimen of fluorite from Berbes, formed by a matrix of hyaline quartz crystals, on which have been growth several colorful cubes. The cubes show edges and defined faces, violet tone, dull gloss and translucent. The sample presents a yellow tonality, a piece from past times from a former Catalan collection.

Probably čechite specimens from the "Rasa de l'Alzina" open pit works could be considered between the best crystals for the species worldwide. They are brilliant, black color and show a tabular shape defined by different order orthorhombic prisms and developed pinacoidal faces. They are disposed on a fluorite matrix. This finding is close to the Maria Magdalena mine, near of the beautiful town of Ulldemolins (Tarragona, Catalonia).
SEM-EDS and EPMA analysis show that, in some cases, on the čechite crystal surface we found copper content, but inside the crystal is near to pure  PbFe2+(VO4)(OH), with minor Zn(II). In most specimens from other localities the presence of manganese is important, but these specimens are Mn free.

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Excellent growth of cyclic twins of cerussite, with very sharp crystals and well defined faces and edges, transparent to translucent, really brilliant... A very good classic with a notable quality and coming from past 60's of the XXth. Not easy to find nowadays.

Brilliant, wine red, translucent, internal red lights... Group of zircon crystals with defined faces and edges. These gems are disposed in a matrix with squist, mica and quartz.

Brilliant, wine red, glassy zircon crystal, with internal red lights. It shows very clearly the faces of the tetragonal prism and both dipyramids, doubly terminated. A gem very aesthetically disposed on a quartz and mica (gneiss) matrix.

Very rich specimen formed by good size sharp crystals of fluorite, with cubic habit, and very well defined faces and edges, good transparence, intense color between purple and violet with intense zoning. This color zoning becomes very evident when the crystals are exposed to the ultraviolet light (LW), since the fluorescence also presents this zoned cubic geometry. They are accompanied by several tabular crystals of baryte on a matrix layered by small quartz crystals.
These specimens come from the town of Bergheim, known for being on the Alsace wines route. Although fluorite crystals were already known in some of the mining works of the area, these specimens come from a work done in a "domaine" (vineyard) in 2017.

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Very rich specimen formed by numerous sharp crystals of fluorite, with cubic habit, and very well defined faces and edges, good transparence, intense color between purple and violet with intense zoning. This color zoning becomes very evident when the crystals are exposed to the ultraviolet light (LW), since the fluorescence also presents this zoned cubic geometry. They are accompanied by several tabular crystals of baryte on a matrix layered by small quartz crystals.
These specimens come from the town of Bergheim, known for being on the Alsace wines route. Although fluorite crystals were already known in some of the mining works of the area, these specimens come from a work done in a "domaine" (vineyard) in 2017.

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This brilliant specimen is an old time hematite from "Le Brézouard", a early 80's finding in the area of Sainte-Marie-aux-Mines. These specimens show a very characteristic hexagonal shape formed by several tabular to laminar brilliant hematite crystals forming aggregates interpenetrated and on a quartz matrix. In this specimen highlights the visibility of the quartz crystals of the matrix, unusual, and the aggregates of small doubly terminated crystals of quartz on the hematite. A very aesthetic and classic specimen for the mining area of Sainte-Marie area.

This good size brilliant specimen is an old time hematite from "Le Brézouard", a early 80's finding in the area of Sainte-Marie-aux-Mines. These specimens show a very characteristic hexagonal shape formed by several tabular to laminar brilliant hematite crystals forming aggregates interpenetrated and on a quartz matrix. A really classic specimen for French and "Sainte-Marie" mineralogy.