Globular aggregates of kolwezite, light to intense green in color. They contrast on a matrix with cobalt-bearing calcite crystals.

In a tuff andesitic volcanic rocky matrix we can observe several cavities that contain aggregates of colorless, bright clinoptilolite crystals. Specimens from this Italian locality are not common.

Fibrous aggregates of malachite, very characteristic of this mine. They are accompanied by small yellow wulfenite crystals. They are disposed on a goethite matrix. A rarity on the market. With a rare vintage label by Olivier Szentessy (Genève, Switzerland).

Some almandine garnet crystals exposed in the center of a quartz nodule from an unusual alluvial deposit. The garnet crystals are nicely exposed showing almost half the largest crystal.

Sold

Group of fine, laminar, pseudohexagonal calcite crystals with color zoning and small recrystallizations of the same mineral. They are accompanied by small quartz and pyrite crystals. It belongs from the Manchion collection (Barcelona).

Sold

Specimens from this locality, located in the south of the island of Sardinia, are very rare on the market. This specimen is formed by cavities lined with prismatic barrel-shaped crystals. Intense green to yellowish color. The piece comes from the Manchion collection and was acquired from Dr. Joan Viñals in 1989.

Sold

Sample of metallurgical slag from this classical Greek locality. In the vacuoles we observe these minerals: laurionite, paralaurionite, phosgenite, ecdemite and nealite. It is accompanied by an interesting handwritten label that describes all these species.

Sold

This old specimen belongs from the classic Atrevida mine, in the south of Catalonia. It is a botryoidal concretion of aragonite with a slight greenish blue hue. Nowadays is strictly forbiden collect minerals in this Natural Park. From the Manchion collection (Barcelona), with handwritten label of Soler i Pujol old label.

Sold

Specimen from this classic Kosovar mine. A matrix formed by crystals of arsenopyrite, twinned sphalerite, pyrite and some calcite. On them have grown nice aggregates of boulangerite showing a metallic gray fine-acicular crystals, but may have other sulphides of the same group, which are called plumosite. A very brilliant and aesthetic specimen.

Sold

Group of pyromorphite crystals with a brownish green color, with very well defined hexagonal shapes and well defined faces and edges. It comes from a classic Spanish mine and from which good quality specimens have come out.

Group of pyromorphite crystals with a brownish green color, with very well defined hexagonal shapes and well defined faces and edges. It comes from a classic Spanish mine and from which good quality specimens have come out.

Group of pyromorphite crystals with a brownish green color, with very well defined hexagonal shapes and well defined faces and edges. It comes from a classic Spanish mine and from which good quality specimens have come out.

Group of pyromorphite crystals with a brownish to green color with zoning, with very well defined hexagonal shapes and well defined faces and edges. On rocky matrix. It comes from a classic Spanish mine and from which good quality specimens have come out. An aesthetic miniature.

Group of pyromorphite crystals with a brownish to green color, with very well defined hexagonal shapes and well defined faces and edges. On rocky matrix. It comes from a classic Spanish mine and from which good quality specimens have come out. An aesthetic miniature.

Group of pyromorphite crystals with a brownish green color, with very well defined hexagonal shapes and well defined faces and edges. It comes from a classic Spanish mine and from which good quality specimens have come out. An aesthetic miniature.

Very curious specimen formed by a matrix of baryte, on one side with lenticular crystals sprinkled with vanadinite and on the other with cavities in which aggregates of vanadinite crystals have grown, with color zoning. An old piece with handwritten label.

Sold

Group of cubic fluorite crystals, brilliant, transparent and with a yellow color with zoning, more orange in the core of some of the crystals. Dotted with small beveled cubic crystals of pyrite. The back side is fully upholstered in pyrite.

Sold

An old specimen of smithsonite, with an orange to pink hue, formed by numerous highly faceted crystals, with curved edges and disposed on a matrix with galena, iridescent chalcopyrite and other sulfides. A good sized classic...

Sold

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.

Good size smoky quartz crystal. Defined, bright and with "ghost" shapes inside. An old piece from a classic Catalan locality.

Sold

A classic specimen from this Brazilian locality. Various flattened, almost lenticular, siderite crystals with a yellowish green color, on which a group of dolomite crystals stands out. In dolomite we see numerous pseudohexagonal pyrrhotite crystals, some included in the dolomite. We did not observe the presence of cubanite.

Sold

Group of fluorapatite crystals from this famous Portuguese mine. They are accompanied by small lenticular siderite crystals.

This old piece stands out for the size of the crystals and their color. The largest crystal presents the classic fractures, perpendicular to the main axis. The minor, with the terminal face. They are pieces that came out many years ago, around the 70s. This specimen also stands out for the label of Joan Montplet, a well-known mineral seller from Sant Celoni (Catalonia).

Sold

A cluster of "sand calcite" calcite which the locality is well know for. Crystals show a hexagonal form, the main one doubly terminated. From a former Spanish collection.

Sold

Group of chalcopyrite crystals, bright, interpenetrated, with well defined edges. On the faces of the crystals we can see small aggregates of crystals, probably tetrahedrite. They are accompanied by sphalerite crystals on matrix. An old piece, from the time of those that are preserved in the Freiberg Mining School Museum.

Sold