A really aesthetic green variscite specimen from the occurrence at Clay Canyon. The polished specimen hosts a whitish crandallite. Variscite is known from dozens of localities around the world, but the specimens from Utah are amongst the better pieces from the United States. The species is named for the German district of Variscia, which was the medieval name for modern-day Vögtland.

Good sized hydromagnesite specimens from this mine and with this quality are uncommon. On the rocky matrix, several globular aggregates of transparent crystals, with a white aspect. Brilliant and very rich specimen. Specimen originally in the collection of Hubin (Belgium).

Sold

Very rich ramsdellite specimen, a rare manganese oxide, formed by several interpenetrated and some isolated groups of well defined crystals. Brilliance is really notable and on matrix. Ramsdellite from this small and defunct mine in a remote corner of Arizona was first found, in the early 1900s. However, the locality was apparently lost for some time and only rediscovered by the father/son team of Roy Jones and Dick Jones in the 1960s. These specimens are from a recent found in 2016.

Sold

Very rich ramsdellite specimen, a rare manganese oxide, formed by several interpenetrated and some isolated groups of well defined crystals. Brilliance is really notable and on matrix. Ramsdellite from this small and defunct mine in a remote corner of Arizona was first found, in the early 1900s. However, the locality was apparently lost for some time and only rediscovered by the father/son team of Roy Jones and Dick Jones in the 1960s. These specimens are from a recent found in 2016.

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.

This specimen of baryte is one of the most aesthetic I've had to be sold... Added to its quality, the crystallographic "games" are more than interesting. It shows two barite crystals connected by a contact twin and sharing faces of different orders orthorhombic prisms. Very sharp faces and edges. With transparent to translucent zones and an exceptional brilliance. It preserve some of the original matrix. No damage. An exceptional specimen.

This huge size kernite specimen is formed by some glassy and translucent cleavage crystals. It is a rare borate, named after the namesake California county where it was discovered. It is extremely rare in sharp crystals. These crystals are not formed in the borate deposit itself, but rather in the tanks that are used to dissolve the borax. Every few years the tanks are shut down for maintenance. Kernite and primary tincalconite crystals are found growing on the large stirring blades and the walls of the tank. From the former Renaud Vochten collection (label will be send to the buyer).

Sold

In this fine quality specimen we can observe several groups of galena crystals of good size, with defined faces and edges, and cube and octahedron faces. Very, very brilliant and disposed very aerial on the matrix. They are accompanied by another galena group showing the spinel twin and a pseudohexagonal shape. Partially covered by dolomite rhombohedrons. An aesthetic specimen that combines cubic crystals and twin. Amazing...

Several radial aggregates of tabular flattened weeksite crystals, of intense yellow color and transparency. Some of these aggregates are covered by chalcedony. With dendritic pyrolusite. They are accompanied by orange aggregates of carnotite crystals. It is a uranium-vanadium mineralization in fine-grained sedimentary and volcanic rocks. Analyzed specimen.

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.

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...

Sold

An aesthetic arborescent copper specimen with several defined crystals, with good brilliance an colour. From a former collection.

Sold

In this specimen we can enjoy some willemite prismatic crystals with good size, included in a matrix of white calcite. Willemite usually presents yellow-green fluorescence under shortwave UV light. Calcite from Franklin also highlights for the intense red fluorescence. A very interesting piece.

Barrel-shaped crystals of pyromorphite forming a druse from this American classic locality. It consists of a rich group of very brilliant crystals, color varies from olive green to yellowish and orange, rounded forms. They are disposed on a matrix of goethite. It is very uncommon find these specimens in the mineral market.

Botryoidal aggregates of smithsonite with a very tastefull intense blue color, translucent and with some brilliance. They are partially covered by flattened calcite white crystals forming aesthetic rosettes. From a very interesting American locality.

An interesting specimen of native copper showing laminar aggregates included within a solid slate matrix. A very different than usual for the species and locality.

A huge size topaz crystal well disposed on the rhyolite matrix. It shows well defined faces and edges, excellent transparency and uniform toasted honey tone. It shows natural cleavage planes. A gem from a classic locality.

A very nice specimen from a classic American locality. A group of interpenetrated calcite crystals showing curvatures on their faces and edges. They are transparent to translucent and have a delicate yellow color with zonation. With small rhombohedral crystals of dolomite, peppered by microcrystals of chalcopyrite.

A very nice specimen from a classic American locality. A group of doubly terminated crystals showing parallel growth and curvatures on their faces and edges. They are translucent and have a delicate yellow color. With small rhombohedral crystals of dolomite, peppered by microcrystals of chalcopyrite.

Good sized specimen of native copper showing complex crystal faces, typical of these specimens, with good color, brilliance and aesthetics. This specimen is from the findings made in the mid-90 in this American mine. It has not been treated with chemicals, so its color and brightness are natural.

Good sized and aerial specimen of native copper showing curved crystal faces, typical of these specimens, with good color and aesthetics. This specimen is from the findings made in the mid-90 in this American mine. It has not been treated with chemicals, so its color and brightness are natural.

A brilliant and very sharp bixbyite crystal. A manganese oxyde well-known and appreciated by collector for its rich crystallographic forms. In this specimen we can see the cubic main form with vertex truncated by trapezohedron and a small triangular octahedron face. A crystallographic pleasure... Very aesthetically disposed on a volcanic rocky matrix. With an old display label.

Sold

Group of fluorite crystals with faces and sharp edges. One of them shows a good size for the locality. Its intensely toasted honey color is very particular. Note that it is extremely fluorescent with a yellowish tone. It is accompanied by several tabular crystals of white celestite and a group of calcite. It is difficult to find in the market samples of this mine without damages (this only has a almost invisible small dent) since they "fall down" in the geodes. An aesthtic American classic.

Group of fluorite crystals with echeloned parallel growth, with marked faces and edges and damage free. Its honey color is very particular to this locality. Note that it is extremely fluorescent with a yellowish tone. Accompanied by white celestite crystals and disposed on a matrix with dolomite and calcite. It is difficult to find in the market pieces from this mine without damages, because they use to "fall down" in the vugs. An aesthetic American classic.