Rosell Minerales

Druse of fluorapophyllite-(K) crystals covering aggregates of kinoite crystals with an intense blue color. A sample from the past, belonging to the Joan Astor collection (Barcelona), with a handwritten label and typewritten box.

Size: 7.3 x 4.7 x 4 cm.
Found in ± 1976.

Col. Joan Astor (Barcelona).

Green aggregates of lindgrenite, forming shiny crusts. Some corroded crystals are observed, associated with bright molybdenite. It belongs to the Joan Astor collection (Barcelona), with a handwritten label and typewritten box.

Size: 7 x 4.2 x 3.1 cm.
Found in ± 1976.

Col. Joan Astor (Barcelona).

Rich group of hemimorphite crystals forming radial aggregates, with a slightly bluish hue. It is accompanied by black, zoned, tenorite globular aggregates. It belongs to the Joan Astor collection (Barcelona), with a handwritten label and typewritten box.

Size: 7.5 x 5 x 3.2 cm.
Found in ± 1977.

Col. Joan Astor (Barcelona).

Arborescent specimen of native copper, formed by numerous sharp crystals, with excellent luster and intense color. The piece is from the Joan Astor collection and dates from the early 70s.

Size: 5 x 3.8 x 1.4 cm.
Found in ± 1973.

Col. Joan Astor (Barcelona).
Classic locality

Rich group of linarite crystals, very bright, with well visible facets and a spectacular color. They upholster a cavity in the quartz matrix. From this classic locality for the species.

Size: 6 x 4.3 x 3.5 cm.
Found in 1992

Classic locality

This specimen is one of the well-known calcite after glauberite pseudomorphs from Arizona. This aesthetic floating specimen shows interpenetrated crystals, very well defined faces and edges and a delicate cream tone. A classic by itself.

Size: 3.9 x 2.4 x 2.1 cm.

This specimen is one of the well-known calcite after glauberite pseudomorphs from Arizona. This aesthetic floating specimen shows interpenetrated crystals, very well defined faces and edges and a delicate cream tone. A classic by itself.

Size: 4 x 3.9 x 2.7 cm.

This specimen is one of the well-known calcite after glauberite pseudomorphs from Arizona. This aesthetic floating specimen shows interpenetrated crystals, very well defined faces and edges and a delicate cream tone. Good size. A classic by itself.

Size: 5.7 c 2.6 x 2.2 cm.

This specimen is one of the well-known calcite after glauberite pseudomorphs from Arizona. This aesthetic floating specimen shows interpenetrated crystals, very well defined faces and edges and a delicate cream tone. Good size. A classic by itself.

Size: 5.2 x 2.9 x 2.9 cm.

Classic locality

Good size sample of the meteoric impact that took place aproximately 49,000 years ago in this remote area of Arizona. The impact crater stands out, where more than 30 tons of material have been collected since was discovered in 1891. It is a metallic, iron-nickel meteorite, classified as coarse octahedrite. Contains taenite (Fe, Ni) and mostly iron, kamacite variety (Fe, Ni). Weight: 23 grams.

Size: 3.3 x 27 x 1.2 cm. 23 g.
Found in ca. 1997.

Col. Antonio Trigo (Mataró).

Very aesthetic specimen of kinoite from this famous American mine. It is a druse formed by small crystals of this rare silicate of calcium and copper, very characteristic of this mine, which are partially covered by brilliant and transparent crystals of Hydroxyapophyllite-(K). We also observe the kinoite as darker globular aggregates. Pure aesthetics and brightness. The best kinoites came out for a short time in the 70s from this Arizona mine, and specimens show up only rarely on the market.

Size: 7.3 x 5.5 x 4.8 cm.
Found in ±1975.

Col. A. Arguijo (L'Hospitalet de Llobregat).
Classic locality

Johannsenite is a rare calcium and manganese silicate of the pyroxene group. In this specimen it appears forming aggregates of sharp prisms, with dark green color, accompanied by tabular lanceolate crystals of axinite-(Mn) of greenish tones and quartz crystals. A good-sized specimen of an unusual species.

Size: 7.2 x 5.8 x 5.5 cm.
Main crystal: 7 mm.

A very esthetic and good size specimen formed by several globular aggregates of acicular crystals of rosasite, of bluish green color, some partially covered by bright and transparent calcite crystals. It is accompanied by smithsonite and in a goethite matrix.

Size: 8.5 x 7.5 x 4 cm.
Main crystal: 3 mm aggr.
Found in ±1989

Col. Manchion (Barcelona) #445 E. Kucera (1989).

Aesthetic cluster of greenish andradite crystals, very well defined, bright and slightly iridescent. From Stanley Butte, Arizona, classic locality for these specimens. No damage to any of the main crystals.

Size: 7.8 x 5 x 4.2 cm.
Main crystal: 14 mm.
Found in ±1988

Col. Manchion (Barcelona) #403 E. Kucera (1988).

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.

Size: 6.5 x 5.5 x 3.0 cm.
Main crystal: 6 x 5 mm.
Found in 11/2016.

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.

Size: 8.0 x 3.6 x 2.8 cm.
Main crystal: 6 x 5 mm.
Found in 11/2016.

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.

Size: 5.5 x 4.0 x 3.2 cm.
Main crystal: 8 x 7 mm.

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.

Size: 6.8 x 6.0 x 4.0 cm.

Presents radioactive activity.

A huge size and top quality "Jackstraw" cerussite specimen. The "jackstraw" habit consists of numerous randomly oriented elongated crystals. The best known locality for this "jackstraw" type are those specimens from the Flux mine, in Arizona.
It is formed by a rich group of elongated cerussite crystals with an intense white color, divergent growth and good brilliance. In a limonite matrix. Both sides are mineralized. A classic specimen from this American locality. It was adquired by Gerard Vogel (Netherlands) in 1961, in California.

Size: 9,5 x 6,1 x 4,2 cm.
Main crystal: 27 x 3 mm.
Found in 1960's.

Ex-coll. Dr. Gerard Vogel (NL).
Fluorescent under long wave UV

It is a brilliant smithsonite specimen from a mine not well represented and very uncommon in the collections, including the American collections. These zinc carbonate crystals show a polysynthetic growths of rhombohedrons, color between white to colorless, with a strong pearlescent luster and forming botryoidal aggregates. They are accompanied by blue-green rosasite, in spherical aggregates.
This specimen is interesting for different reasons. The accompanying old label belongs to the Antigua Casa (former house) Soler Pujol of Barcelona, ​​known for its collections relating to the natural history sciences. We add to its history that this specimen was in the collection of Mr. Lluís Daunis, also from Barcelona. An old specimen from a interesting American locality.

Size: 7,3 x 5,5 x 3,5 cm.
Main crystal: 1 x 1 mm.
Found in ca 1960.

Ex-col. Daunis.