Rosell Minerales

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.

A very good size specimen of skutterudite, with well defined and very brilliant crystals. With quartz crystals. A nice showcase specimen.

 

Size: 12.5 x 6.7 x 6 cm.
Found in ±2019.

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

Classic locality

Group of skutterudite crystals, intense luster and well defined faces and edges, showing cube, octahedron and dodecahedron shapes. They are accompanied by white calcite with which they contrast. It belongs from this classic Moroccan mine and from the Joan Astor collection.

Size: 5.2 x 4.1 x 2.8 cm.
Main crystal: 7 mm.
Found in ± 1976.

Col. Joan Astor (Barcelona).

An unusual specimen from this Moroccan mining area. Globular aggregates of crystaline conichalcite  with its classic green color, partially covering cavities of the matrix. To give a unique touch of quality to this sample, cavities are covered with bright, water-clear calcite crystals, many of them doubly terminated, and including or covering the conichalcite species. An excellent and brilliant specimen.

Size: 8.0 x 6.5 x 6.0 cm.
Main crystal: 5 x 1 mm
Found in 2015.

A very brilliant cobaltoan calcite specimen with an intense pink color. Brilliance is due to several small calcite crystals. From a classic Moroccan locality.

Size: 5.3 x 5.1 x 4,8 cm.

In this specimen we have a very curious combination of erythrite forms. On the one hand, globular aggregates of this arsenate formed by needle like crystals with a velvet luster and a pale pink color. On the other hand, groups of lanceolated crystals with defined faces and edges, good transparence and deep purple color. All of them are disposed on a matrix with sharp cube octahedron skutterudite crystals. A fine specimen for this Moroccan locality.

Size: 6,0 x 4,3 x 3,2 cm.
Main crystal: 13 x 5 mm.

A huge size and very rich specimen formed by groups of allargentum intergrown with dyscrasite and silver. Defined crystals, very aerial disposed. Good luster, with metallic gray tones, gold (classic for allargentum) and silver. On a calcite matrix. A very elegant and quality sample for this locality and species.

Size: 8,2 x 4,4 x 3,3 cm.
Main crystal: 10 x 2 mm.
Found in 2001.

Unusually species for this Moroccan mine. The dealer confirmed the locality, I initially thought in Imiter. This is a group proustite crystals with good red color, brilliance and transparence, some of them contacted due to the cavity, others showing terminations and striated faces. In calcite matrix.

Size: 6,0 x 5,2 x 3,7 cm.
Main crystal: 4 x 1 mm.

On a matrix covered by small quartz crystals, very bright, you have different groups of erythite crystals with a good size, showing the flattened prismatic shapes and intense color, typical for the species. A sample of quality and good size.

Size: 10,0 x 7,5 x 2,2 cm.
Main crystal: 33 x 17 mm.

On a heavy Co-As primary minerals matrix are disposed a rich group of acicular prismatic erythrite crystals. They form the usual globular aggregates but, in this specimen, disposition and this pink to orange color give to the specimen a different touch. A classic from this Moroccan cobalt locality.

Size: 6,0 x 5,8 x 5, 8 cm.
Main crystal: 7 mm. aggreg.

On a rich Co-As primary minerals matrix are disposed several groups of acicular crystals of erythrite forming colloquially called: hedgehog aggregates. They are partially covering the matrix, as isolated groups or like a velvet. The pink to fuchsia colors are remarkable and confers to the specimen an excellent aesthetics.

Size: 10,0 x 5,3 x 3,6 cm.
Main crystal: 5 mm. aggreg.

The Bou Azzer's Erythrite is usually found as flattened tabular crystals but sometimes we can enjoy these needle like Erythrite specimens showing spherical aggregates formed by thin tabular crystals with an intense pink to purple color and excellent brilliance. A really good specimen from this Moroccan cobalt mine.

Size: 6,7 x 4,4 x 4,2 cm.
Main crystal: 9 x 9 mm. (aggr.)
Found in 03-2009