Rosell Minerales

A specimen from this classic locality in Malaga where groups of pyrite crystals have been totally replaced by goethite (limonite). A Spanish reference.

Size: 8.8 x 5 x 2.8 cm.
Main crystal: 2.3 cm.
Found in ±1991.

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

Specimen of Mexican banded opal. An old piece from the Manchion collection acquired in 1991.

Size: 5.9 x 4 x 2.3 cm.
Found in ±1991.

Col. Manchion (Barcelona).

Rich group of lanceolated hemimorphite crystals, thick, very brilliant and transparent. With calcite and on a goethite matrix. A classic of this Mexican mine.

Size: 7.9 x 5.5 x 4.4 cm.
Main crystal: 9.2 mm.
Found in ±1988.

Col. Manchion (Barcelona).
Classic locality

Divergent aggregate of aragonite crystals, very aesthetic, brilliant and transparent to translucent. They are disposed on a matrix with goethite. Aragonite specimens from Lavrion are prized by collectors for their aesthetics.

Size: 7 x 5.2 x 3.9 cm.
Main crystal: 8.5 mm.
Found in ±1990.

Classic locality

A very good sized specimen of skutterudite, with well defined and very brilliant crystals. They are accompanied by aesthetic aggregates of lanceolated saffflorite crystals and quartz. A display fine specimen.

Size: 7.2 x 7 x 5 cm.
Main crystal: 1.2 cm.
Found in ±2019.

Aesthetic specimen of good size upholstered by a layer of botryoidal aggregates of chrysocolla, with a pale blue to light blue. On the chrysocolla there are numerous aggregates of acicular malachite crystals, transparent, brilliant, velvety and that stand out on the matrix.

Size: 15 x 9 x 6 cm.
Found in ±2019.

Very interesting specimen from this old Roman mine located between Cármenes and Villamanín (León, Spain), which was later exploited for copper until the end of the 20th century. These are botryodal aggregates of chrysocolla replacing tyrolite. A rarity of this Leonese mine.

Size: 7.6 x 7.3 x 5.4 cm.
Found in ±1998.

Col. M. Marí - A. García (Castelló)
Classic locality

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).

Size: 4.4 x 3.2 x 3.2 cm.
Found in ±1985.

Col. Manchion (Barcelona).

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.

Size: 4.7 x 4 x 2.9 cm.
Main crystal: 2.8 cm.
Found in ±1985.

Col. Manchion (Barcelona).

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.

Size: 3.2 x 3 x 1.8 cm.
Main crystal: 7.8 mm.

Classic locality

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.

Size: 3.3 x 2.1 x 2 cm.
Main crystal: 5 mm.

Classic locality

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.

Size: 4 x 3.2 x 1.9 cm.
Main crystal: 3.5 mm.

Classic locality

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.

Size: 3.3 x 3 x 2.4 cm.
Main crystal: 1 cm.

Classic locality

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.

Size: 8.5 x 6.6 x 4.5 cm.
Main crystal: 7.5 mm.
Found in ±1985.

Col. Manchion (Barcelona).

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.

Size: 4.2 x 1.2 x 0.7 cm.
Found in ±1980.

Col. Manchion (Barcelona).

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

Size: 6.4 x 5.1 x 3.9 cm.
Found in ±1985.

Col. Manchion (Barcelona).

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.

Size: 5.5 x 3.8 x 2.4 cm.
Found in ±1985.

Col. Manchion (Barcelona).

Numerous well-defined and interpenetrated sphalerite crystals are arranged on a matrix with quartz crystals, accompanied by pyrite crystals. In the upper part, a group of chalcopyrite crystals with some indentation, which allows us to see the color and brilliance.

Size: 6 x 4.4 x 4.3 cm.
Main crystal: 1.6 cm.
Found in ±1984.

Col. Manchion (Barcelona).

Group of quartz crystals in parallel growth and with a "scepter" structure. Very well defined faces and edges, brilliant and transparent to translucent. Very aerially disposed on the matrix. An good size and excellent specimen from a Moroccan locality not very known.

Size: 10 x 7.2 x 5.5 cm.
Main crystal: 5 x 4 cm.
Found in ±2019.

Group of complex sphalerite crystals with striated facets. Bright, translucent and with a toasted honey color. Exfoliated on the back.

 

Size: 5.5 x 4 x 2.9 cm.

Col. Joan Astor (Barcelona).

Group of very elongated prismatic crystals, in parallel growth, very brilliant. The back side has a coating of quartz microcrystals. A piece from the Astor collection acquired in 1974 from Bailey Minerals (Ángel Jesús Talabán García, Segovia 1942-Madrid 2007).

Size: 6.5 x 3 x 2.2 cm.
Found in ±1974.

Col. Joan Astor (Barcelona).

In a vug of the matrix there are numerous complete and brilliant dioptase crystals with the characteristic intense green color. They are accompanied by small yellow crystals of duftite, on calcite rhombohedra. A very aesthetic classic from this mine.

Size: 6.4 x 6 x 5 cm.
Main crystal: 3 mm.
Found in ±1980.

Exceptional and old specimen of cerussite from this classic Moroccan locality. It presents several divergent prismatic to tabular crystals of good size, twinned in a "V" shape. Translucent and with a smoky hue. Pure aesthetics, a very difficult specimen to get nowadays.

Size: 4.4 x 4 x 2 cm.
Main crystal: 4 x 2 cm.
Found in ±1980.

Classic locality

Quartz specimen with marked "window" growths with inclusions. These Allos pass crystals are not very common on the market. Allos pass is situated on the edge of Mercantour National Park approximately 20 km from the small village of Barcelonnette.

Size: 8.5 x 6.3 x 3 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.