Rosell Minerales

Druse of pyrite crystals with faces of the cube and rhobododecahedron, striated faces, complex crystallography, which adds interest to the specimen. Back side is curiously flat. The luster is exceptional, not easy to take photos. The crystals are interpenetrated. A classic from the mine from which the bases for the FIFA football award "Ballon d'Or" are obtained...

Size: 6.5 x 5 x 3.2 cm.

Group of cyclically twinned bournonite crystals, with a metallic gray color, interpenetrating each other. They are disposed on a matrix of very brilliant octahedral pyrite, partially covered by complex sphalerite crystals.

Size: 6 x 4.5 x 3.8 cm.

Group of octahedral pyrite crystals, very brilliant and well defined, which are accompanied by complex crystals of sphalerite. On them we observed numerous white globular crandallite aggregates (analyzed by XRD). This combination of minerals is unusual in the deposit, with this phosphate being the first citation.

Size: 5.5 x 5.3 x 2.7 cm.

Group of octahedral pyrite crystals, very brilliant and well defined, which are accompanied by complex crystals of sphalerite. On them we observed numerous white globular crandallite aggregates (analyzed by XRD). This combination of minerals is unusual in the deposit, with this phosphate being the first citation.

Size: 8.4 x 6.9 x 5 cm.
Main crystal: 18 mm. py

Druse of pyrite crystals with faces of the cube and rhobododecahedron, with diploid forms, striated faces, complex crystallography, which adds interest to the specimen. The luster is exceptional, not easy to take photos. The crystals are interpenetrated. A classic from the mine from which the bases for the FIFA football award "Ballon d'Or" are obtained...

Size: 9.2 x 6.8 x 4.6 cm.

Very aesthetic specimen that shows two generations of orpiment. One with an intense orange color, formed by numerous brilliant crystals. A second generation formed by crystals that cover the arsenopyrite-pyrite matrix, with a darker tone. A different sample from this classic Peruvian mine.

Size: 8 x 6.3 x 3.8 cm.

Very visible quartz Japan twin law (84°33'), formed by two well developed crystals. Transparence, perfection and with very interesting reddish acicular inclusions of indeterminate species (hübnerite?). From a classic locality very aesthetic piece.

Size: 7.8 x 4.5 x 4.0 cm.
Main crystal: 35 x 10 x 3 mm (50 mm. twin-macla).

Hutchinsonite is one of the few thallium-containing minerals producing good sized crystals. This specimen shows numerous groups of prismatic crystals of this rare sulphosalt, some are doubly terminated, sheaves or isolated, interpenetrated... With an exceptional luster and reddish reflections. They are disposed on a pyrite matrix with rosettes of small quartz crystals. An exceptional specimen.

Size: 8.0 x 5.0 x 2.1 cm.
Main crystal: 7 mm
Found in 2016.

Very sharp dipyramidal scheelite crystals those are coated by lemon yellow stolzite. They are disposed on a flattened hübnerite crystal partially covered by quartz crystals. Pure aethetic specimen.

Size: 4.3 x 3.7 x 2. 8 cm.
Found in 2015.

Fluorescent under short wave UV

Very sharp dipyramidal scheelite crystals those are coated by lemon yellow stolzite. They are on a matrix of quartz crystals. A very interesting and aethetic miniature.

Size: 2.7 x 1.9 x 1.7 cm.
Found in 2015.

Fluorescent under short wave UV

Druse of brilliant hyaline quartz crystals, with transparence and well-developed prism. Some of them showing the Japan-law twin, flattened, transparent to translucent. From a classic Peruvian locality which was inaccurated located in Pasto Bueno district, Pallasca province.

Size: 9.5 x 5.6 x 4.9 cm.
Main crystal: 12 x 10 mm.
Found in 2015.

Druse of brilliant hyaline quartz crystals, with transparence and well-developed prism. Some of them, one with a good size, showing the Japan-law twin, flattened, transparent to translucent. From a classic Peruvian locality which was inaccurated located in Pasto Bueno district, Pallasca province.

Size: 9.3 x 4.2 x 3.6 cm.
Main crystal: 23 x 19 mm.
Found in 2015.

Druse of brilliant hyaline quartz crystals, with transparence and well-developed prism. Some of them showing the Japan-law twin, flattened, transparent to translucent. From a classic Peruvian locality which was inaccurated located in Pasto Bueno district, Pallasca province.

Size: 7.3 x 4.8 x 4.5 cm.
Main crystal: 14 x 12 mm.
Found in 2015.

Rich specimen formed by complex sphalerite and galena crystals partially covered by small but brilliant seligmannite associated with tetrahedrite, orpiment and quartz crystals. With pyrite and chalcopyrite. You can see under magnification very aesthetic orpiment-seligmannite aggregates. A very nice combination.

Size: 8.7 x 7.3 x 3.0 cm.

Druse of brilliant hyaline quartz crystals, with transparence and well-developed prism. Two of them showing the Japan-law twin, flattened, transparent to translucent. From a classic Peruvian locality which was inaccurated located in Pasto Bueno district, Pallasca province.

Size: 5.0 x 4.5 x 3.2 cm.
Main crystal: 18 x 15 mm
Found in 2015.

Druse of brilliant hyaline quartz crystals, with transparence and well-developed prism. Some of them showing the Japan-law twin. Well defined, flattened, transparent to translucent. From a classic Peruvian locality which was inaccurated located in Pasto Bueno district, Pallasca province.

Size: 6.8 x 3.8 x 3.3 cm.
Main crystal: 13 x 9 mm. (macla/twin)
Found in 2015.

Brilliant specimen formed by globular aggregates of orpiment crystals, with good orange-yellow color. They are accompanied by brilliant acicular crystals of realgar with deep red color, transparent and defined. It is accompanied by barite crystals, pyrite and pyrrhotite. A different and quality specimen for this classic Peruvian mine.

Size: 8.8 x 5.8 x 5.2 cm.

Brilliant, transparent to translucent, tabular baryte crystals on edge are aesthetically and partially covered by colorful, rich orange color, orpiment botryoids from this classic Peruvian mine. With a few gemmy, blood-red realgar prisms.

Size: 8.0 x 5.4 x 3.3 cm.
Found in 2010.

A specimen formed by some tetrahedrite crystals of very good size. They show faces of the positive and negative tetrahedron, very sharp and rich in faces. Some of them are coated with a thin golden patina of chalcopyrite, a very aesthetic rarity. They are accompanied by bright calcite that partially cover with a geometrical disposition. A specimen of great aesthetic and interesting by the size of its crystals.

Size: 10,0 x 8,3 x 6,0 cm.
Main crystal: 4,2 x 4,0 cm.

Druse of tetrahedrite crystals with defined faces and edges. Good brilliance, with a metallic-gray tone. They show complex interpenetrating faces. Accompanied by groups of hyaline quartz crystals forming rosettes. Very aesthetic. With sphalerite in the matrix. From a classic Peruvian mine.

Size: 10 x 7,8 x 3,5 cm.
Main crystal: 25 x 22 mm.

A very rich group of tetrahedrite crystals with an intense metallic luster and deep black color, with well defined faces and edges. Faces show complex growth and some vertices are truncated by opposite tetrahedron faces. They are accompanied by groups of sphalerite crystals, complex forms, easily distinguished by its grayish dull sheen. Highlight the intense orange fluorescence of this sphalerite probably due to the presence of cadmium in its crystal lattice. From the Jaqui adit, a diferent locality not well represented in collections.

Size: 9,3 x 4,0 x 4,0 cm.
Main crystal: 28 x 26 mm.

Fluorescent under long wave UV