Rosell Minerales

In this specimen we can enjoy several groups of wire silver, with showy wire to skeletal growths and metallic luster. Accompanied by black acanthite crystal aggregates. From a classic locality for the Catalan and Spanish mineralogy. A good chance to represent this locality in your collection. Nowadays it is very difficult find specimens, only from old collections...

Size: 4.5 x 3.1 x 2.5 cm.
Found in 1998.

Classic locality

Druse of cubic fluorite crystals from these classic Catalan mines where mining has been prohibited for years. Translucent, with a semi-matte shine, yellowish color and with defined faces and edges.

Size: 9.2 x 6.4 x 2.2 cm.
Main crystal: 16 mm.
Found in ±1980.

Este ejemplar de fluorita de la cantera Berta nos muestra grupos de cristales pero también cristales aislados. La matriz es la granodiorita de color rojo "antigua" y se halla tapizada por diminutos octaedros de fluorita casi incoloros. Si algo hay que destacar de esta pieza es que los cristales octaédricos de fluorita muestran en los vértices las caras del rombododecaedro, del cubo y del tetraquishexaedro.

Size: 5.9 x 5.4 x 2.6 cm.
Main crystal: 8 mm.

Fluorescent under long wave UV

This specimen of fluorite from the Berta quarry shows us a group of crystals but also isolated crystals. The matrix is "old" red granodiorite and is lined by tiny, almost colorless fluorite octahedrons.

Size: 5 x 3.5 x 1.8 cm.
Main crystal: 9.5 mm.

Fluorescent under long wave UV

This is a specimen of tabular barite crystals, colorless to yellowish tones and very good transparence. It belongs from the Mines d'Osor, currently closed and from which it is impossible to obtain these specimens. The mine closed in 1979 and had eleven levels, with a 290 meter deep shaft. You can still see the ruins of the old facilities and the well from which sphalerite, galena and fluorite were extracted and treated.

Size: 9 x 6 x 2.8 cm.
Found in ±1980.

This is a specimen of tabular barite crystals, colorless to yellowish tones and very good transparence. It belongs from the Mines d'Osor, currently closed and from which it is impossible to obtain these specimens. The mine closed in 1979 and had eleven levels, with a 290 meter deep shaft. You can still see the ruins of the old facilities and the well from which sphalerite, galena and fluorite were extracted and treated.

Size: 9.2 x 6.4 x 6 cm.
Main crystal: 14 mm.
Found in ±1980.

Classic locality

Group of baryte crystals, between translucent and transparent, colorless and of good size, one of them standing out. They show faces of the orthorhombic prisms and the pinacoid. The largest one shows beveled edges, with an part contacted by a disapeared matrix. It is accompanied by powdery hematite. It is a sample with many years.

Size: 5.7 x 5 x 4.4 cm.
Main crystal: 12 x 7 mm.
Found in ±1980.

Fluorite specimens from Sant Marçal mines usually appear as aggregates of cubic crystals, defined, sometimes sprinkled or partially covered by quartz crystals. Yellow to greenish tones are the usual ones. Specimens with violet to bluish or green colors (depending on the type of incident light) are much less frequent and highly appreciated by collectors. These specimens we offer were collected at the beginning of the 70s. In this specimen we can observe cubic crystals with this bluish to greenish tone, translucent and disposed on a characteristic ochy "pegmatite" matrix. They are partially covered with small but brilliant quartz crystals.

The Sant Marçal mines (also known as Matagalls mines) are located in the Montseny massif, on the eastern slope of the Matagalls peak (1,700 m). Mining works were carried out at 1,250 to 1,350 m of altitude. They were mined until the mid-90s and have been partially restored. Currently this area belongs to the Montseny Natural Park, so the collection of specimens is totally prohibited.

 

 

Size: 7.3 x 4.7 x 2.7 cm.
Main crystal: 2.5 cm.
Found in ±1970.

Fluorescent under long wave UV

Fluorite specimens from Sant Marçal mines usually appear as aggregates of cubic crystals, defined, sometimes sprinkled or partially covered by quartz crystals. Yellow to greenish tones are the usual ones. Specimens with violet to bluish or green colors (depending on the type of incident light) are much less frequent and highly appreciated by collectors. These specimens we offer were collected at the beginning of the 70s. In this specimen we can observe cubic crystals with this bluish to greenish tone, translucent and disposed on a characteristic ochy "pegmatite" matrix. They are partially covered with small but brilliant quartz crystals.

The Sant Marçal mines (also known as Matagalls mines) are located in the Montseny massif, on the eastern slope of the Matagalls peak (1,700 m). Mining works were carried out at 1,250 to 1,350 m of altitude. They were mined until the mid-90s and have been partially restored. Currently this area belongs to the Montseny Natural Park, so the collection of specimens is totally prohibited.

 

 

 

Size: 7.8 x 6.2 x 3.8 cm.
Main crystal: 1.5 cm.
Found in ±1970.

Fluorescent under long wave UV

Fluorite specimens from Sant Marçal mines usually appear as aggregates of cubic crystals, defined, sometimes sprinkled or partially covered by quartz crystals. Yellow to greenish tones are the usual ones. Specimens with violet to bluish or green colors (depending on the type of incident light) are much less frequent and highly appreciated by collectors. These specimens we offer were collected at the beginning of the 70s. In this specimen we can observe cubic crystals with this bluish to greenish tone, translucent and disposed on a characteristic ochy "pegmatite" matrix. They are partially covered with small but brilliant quartz crystals.

The Sant Marçal mines (also known as Matagalls mines) are located in the Montseny massif, on the eastern slope of the Matagalls peak (1,700 m). Mining works were carried out at 1,250 to 1,350 m of altitude. They were mined until the mid-90s and have been partially restored. Currently this area belongs to the Montseny Natural Park, so the collection of specimens is totally prohibited.

 

 

Size: 9.3 x 5.1 x 4.9 cm.
Main crystal: 1.8 cm.
Found in ±1970.

Fluorescent under long wave UV

Fluorite specimens from Sant Marçal mines usually appear as aggregates of cubic crystals, defined, sometimes sprinkled or partially covered by quartz crystals. Yellow to greenish tones are the usual ones. Specimens with violet to bluish or green colors (depending on the type of incident light) are much less frequent and highly appreciated by collectors. These specimens we offer were collected at the beginning of the 70s. In this specimen we can observe cubic crystals with this bluish to greenish tone, translucent and disposed on a characteristic ochy "pegmatite" matrix. They are partially covered with small but brilliant quartz crystals.

The Sant Marçal mines (also known as Matagalls mines) are located in the Montseny massif, on the eastern slope of the Matagalls peak (1,700 m). Mining works were carried out at 1,250 to 1,350 m of altitude. They were mined until the mid-90s and have been partially restored. Currently this area belongs to the Montseny Natural Park, so the collection of specimens is totally prohibited.

 

Size: 7.6 x 5.4 x 5 cm.
Main crystal: 1.6 x 1.4 cm.
Found in ±1970.

Fluorescent under long wave UV

Various aggregates of quartz crystals, some doubly terminated, with transparence and brilliance, partially dotted with small reddish globules of hematite, which partially cover a matrix with bluish crystals of fluorite. These specimens that we offer were collected at the beginning of the 70s. The mines were exploited until the mid-90s and have been partially restored. Currently this area belongs to the Montseny Natural Park, so the collection of specimens is totally prohibited.

Size: 4.4 x 4.2 x 2.6 cm.
Found in ±1970.

Classic locality

Smoky quartz crystal with parallel growths, bright, translucent, with intense smokiness and microcline. The quartz crystals from this quarry are a classic of Catalan mineralogy. Currently works are abandoned and it is difficult to find new specimens.

Size: 6.4 x 3.2 x 2.9 cm.
Found in ±2004.

Smoky quartz crystals in parallel growth. Translucent, with a uniform smoky tone, they alternate glossy and matt faces. The quartz crystals from this quarry are a classic of Catalan mineralogy. Currently works are abandoned and it is difficult to find new specimens.

Size: 7.4 x 4 x 3.8 cm.
Found in 04/2001.

Smoky quartz crystal on a microcline matrix. Translucent, with a uniform smoky tone, it alternates brilliant and matte faces. The quartz crystals from this quarry are a classic of Catalan mineralogy. Currently works are abandoned and it is difficult to find new specimens.

Size: 5.1 x 3.1 x 2.8 cm.

Microcline crystals in parallel growth. They show faces of the Baveno twin. The microcline crystals from this quarry are a classic of Catalan mineralogy. Currently works are abandoned and it is difficult to find new specimens.

Size: 5 x 2.6 x 2.4 cm.
Found in ±2004.

Microcline crystal with muscovite inclusions. It presents faces of the Baveno twin. The microcline crystals from this quarry are a classic of Catalan mineralogy. Currently works are abandoned and it is difficult to find new specimens.

Size: 4.5 x 4.3 x 3.2 cm.
Found in ±2004.

Microcline crystal with muscovite inclusions. It presents faces of the Baveno twin. The microcline crystals from this quarry are a classic of Catalan mineralogy. Currently works are abandoned and it is difficult to find new specimens.

Size: 4.7 x 4 x 2.8 cm.
Found in ±2003.

Smoky quartz crystals with parallel growths. Smoky tone is good. The quartz crystals from this quarry are a classic of Catalan mineralogy. Currently quarry is abandoned and it is difficult to find new specimens.

Size: 6.6 x 4.2 x 2.9 cm.
Found in 04/2001.

Floater crystals of smoky quartz with parallel growths. The quartz crystals from this quarry are a classic of Spanish mineralogy. Currently the quarries are abandoned and it is difficult to find new specimens.

Size: 5.8 x 3.3 x 2.4 cm.
Found in ±2004.

In a building works in Cal Gairal street, in the Rocabruna village (Bruguers, Gavà), a few specimens of intense green variscite were found forming veins in grey slates. Unfortunately when we were able to access these works, the exact place where these specimens were extracted from had already been filled and covered with concrete. Variscite had not been found in the Bruguers area for many decades, let alone with this quality. X-ray diffraction results indicated the presence of crandallite. We recommend the recently published book: "Mines i minerals de la serra de les Ferreres. Les mines de Rocabruna, Bruguers, Gavà" (Catalan language).

Size: 7.8 x 6.5 x 5.7 cm.
Main crystal: 7.5 mm. veta/vein.
Found in 18/05/2022.

Analyzed specimen with report

In a building works in Cal Gairal street, in the Rocabruna village (Bruguers, Gavà), a few specimens of intense green variscite were found forming veins in grey slates. Unfortunately when we were able to access these works, the exact place where these specimens were extracted from had already been filled and covered with concrete. Variscite had not been found in the Bruguers area for many decades, let alone with this quality. X-ray diffraction results indicated the presence of crandallite. We recommend the recently published book: "Mines i minerals de la serra de les Ferreres. Les mines de Rocabruna, Bruguers, Gavà" (Catalan language).

Size: 7.8 x 6.7 x 5 cm.
Main crystal: 6 mm. veta/vein.
Found in 18/05/2022.

Analyzed specimen with report

Group of very well defined fluorite crystals, between transparent and translucent, and with a yellowish-green color characteristic of this mine. Some have color zoning. They are accompanied by small crystals and hyaline quartz. These specimens that we offer were collected in the early 70s.

Size: 11 x 5.5 x 3.4 cm.
Main crystal: 1.6 x 1.4 cm.
Found in ±1970.

Fluorescent under long wave UV

A Catalan new found. Group of amethyst quartz crystals in parallel growth, transparent to translucent. On quartz matrix. The area is known for historical finds of smoky quartz crystals, not so much amethyst quartz.

Size: 6.5 x 4.7 x 4 cm.
Main crystal: 10 mm.
Found in 2021-22.

Fehrite is a recent new species found in Almeria (Spain). Some years ago (2012) we identified this species in the Les Ferreres mine (Camprodon) but unfortunatelly we didn't have enough sample to finish detrmination and structural studies. Recently we found some more samples and the characterization was carried out based on the results obtained from the application of various analytical techniques: SEM-EDS, Raman and X-ray diffraction. Les Ferreres mine is the second locality worldwide for the species. We will send all reports to the buyer.
In this Catalan mine, fehrite appears as elongated elongated tabular to fibrous crystals, with a delicate bluish-green tone, and fibrous terminations. Usually, it is accompanied by devilline (blue) and brochantite (green). It is the magnesium analogue of ktenasite.

Size: 2.3 x 1.1 x 1 cm.
Found in ±2019.

Analyzed specimen with report