Group of carrollite crystals showing cube and octahedron shapes. Very bright and interpenetrated with each other. Defined edges and faces and exceptional shine. Very aesthetic.

Group of carrollite crystals showing cube and octahedron shapes, along with tetrahexahedron shapes. Very bright and interpenetrated with each other. Defined edges and faces and exceptional shine. Very aesthetic.

160 €

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Carrollite is a copper cobalt sulfide, with the very finest of the species coming from the DR Congo. This excellent specimen is sharp, well-defined, and has a bright metallic luster. The single crystal is a modified cuboctahedron and accompanied by chalcopyrite crystals in calcite matrix. It has small nicks due to mechanical work to make the crystal appear that do not affect aesthetics. The condition and aesthetics both help make this such a choice display sample.

370 €

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Carrollite is a copper cobalt sulfide, with the very finest of the species coming from the DR Congo. This excellent specimen is sharp, well-defined, and has a bright metallic luster. The single crystal is a modified cuboctahedron and accompanied by chalcopyrite crystals in calcite matrix. The condition and aesthetics both help make this such a choice display sample.

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

Very aesthetic specimen that shows various globular and stalactitic aggregates of malachite, velvety and green color with zoning. Peppered by small malachite crystals, under the magnifying glass we can see that they are small transparent and defined crystals. In a matrix with goethite. From this classic Congolese locality for the species.

Colourful specimen of cobaltoan dolomite, with intense color, brilliance and translucent crystals. Very aesthetic. From the J. Astor collection (Barcelona).

Aggregates of metatyuyamunite crystals, with an intense yellow to orange colour, accompanied by malachite radial agregates and yellow laminar carnotite.

Very aesthetic specimen formed by several botryoidal aggregates of chrysocolla, with bluish green tones and very brilliant, peppered by prismatic crystals of malachite, transparent, bright and forming sheaves, which are accompanied by botroidal aggregates of intense black colour of heterogenite. A different piece of this classic mine.

In my opinion, among all known radioactive minerals, kasolite is the most aesthetic. It presents forms of elongated to tabular prisms, very well defined and sharp, many of them doubly terminated and of intense yellow color, even with some transparency. It is accompanied by guilleminite crystals of yellowish color. The matrix is partially covered by brilliant malachite. A aesthetic sample from a classic locality, to be observed with attention.

Very aesthetic specimen that shows globular aggregates of malachite, very bright and intense green. Also as velvety botryoidal aggregates. If you take a look under the magnifying glass, you will see that they are formed by several small crystals of this copper carbonate, transparent and defined. From this classic Congolese locality for the species.

Very aesthetic specimen that shows globular aggregates of malachite, very bright and intense green. If you take a look under the magnifying glass, you will see that they are formed by several small crystals of this copper carbonate, transparent and defined. From this classic Congolese locality for the species.

Very aesthetic stalactite of malachite, with an intense green color and a very aerial layout. Good size. From this classic Congolese locality for the species.

Rich aggregate of malachite crystals, brilliant, with an intense green color, which stand out on a matrix of blue-green chrysocolla. Very aesthetic

Kasolite is one of my favorite species. In this sample (from Dr. Viñals, Barcelona) we can enjoy several vugs with lanceolated kasolite crystals. With the orange color, some transparent and isolated, some forming aggregates. Contarsting on the green matrix.

Very rich curite specimen, with some intense orange color crystals and the rest black due to being coated by heterogenite. The sample comes from the former Coune collection and according to its owner was adquired from the 90s, but specimen could be older. Curite crystals are disposed in a very contrasted way on the white matrix. From the type locality for the species.

Heterogeneite specimens of Kabolela are among the most appreciated by systematic mineral collectors. This piece shows a botryoidal aggregate, of which we consider HCoO2 formula, according to the latest studies on the species. Intense black color, brilliance, waxy luster... A classic and very aesthetic definitive specimen.

Group of very well defined cuprite crystals showing very unusual facets both for the species and for this classic locality for the species. They have very well defined faces of the cube and the octahedron, together with those of the dodecahedron. Under intense light the red transparency is observed, but the surface shows a gray patina, the years have passed away. They are placed on a cavity of brilliant calcite crystals. An interesting rarity.

Really nice botryoidal aggregates of malachite, with intense color and a velvety surface due to the small crystals forming globular aggregates. Very different specimen from this mine, well known for the type locality of cornetite species. All aesthetics.

In my opinion, among all known radioactive minerals, kasolite is the most aesthetic. It presents forms of elongated to tabular prisms, very well defined and sharp, many of them doubly terminated and of intense yellow color, even with some transparency. It is accompanied by wulfenite crystals of orange color. The matrix is partially covered by brilliant and transparent torbernite thin tabular crystals. With some malachite. A aesthetic sample from a classic locality, to be observed with attention, nowadays it is very difficult to see good samples like these.

In my opinion, among all known radioactive minerals, kasolite is the most aesthetic. It presents forms of elongated to tabular prisms, very well defined and sharp, many of them doubly terminated and of intense yellow color, even with some transparency. It is accompanied by wulfenite crystals of orange color. The matrix is partially covered by brilliant and transparent torbernite thin tabular crystals. With some malachite. A aesthetic sample from a classic locality, to be observed with attention, nowadays it is very difficult to see good samples like these.

Very aesthetic group of sklodowskite crystals, showing a very sharp prismatic crystals, with transparence and intense yellow color. Old and really good specimen from col. Coune (B) collection, found in 1960's. This species is named by Marie Skłodowska-Curie.

These cuprite crystals from Kolwezi mines are a classic of worldwide mineralogy. In this specimen the crystal shows defined faces and edges, with intense red color under the light. It is disposed in a cavity with needle malachite crystal aggregates. Crystal has no damage, the back side shows natural rounded forms. A very aesthetic and difficult to see specimen.

The kamotoite-(Y) are the intense yellow crystalline sprays, with individual flat-laying crystals to 5 mm. brilliant and transperent. In the same sample we can observe probably a small vein of yellow to orange brilliant uranophane. Kamoto is the Type Locality for the species. A very rare uranium and ytrium mineral from Katanga.

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Unusual specimen formed by globular aggregates of pseudomalachite, intense green color, which are disposed on matrix covered by well defined transparent crystals of willemite, with a yellow to colorless color. It is accompanied by rosasite aggregates of bluish green color. Very aesthetic. We have analized rosasite and willemite and we will send results to the buyer.