Rosell Minerales

An old specimen of this Peruvian mine that shows a large group of cubic galena crystals, interpenetrated, with its characteristic gray tone. They have stepped growths on the faces and some natural cavities, which give them a differentiated appearance.

Size: 11 x 9 x 6 cm.
Main crystal: 2.0 cm.
Found in 11/1985.

#185 Col. Manchion (Barcelona).

Group of chalcopyrite crystals, one of good size, with defined shapes arranged on quartz hyaline crystals. An aesthetic miniature.

Size: 5.2 x 3.5 x 2.5 cm.
Main crystal: 1.6 cm.
Found in ±1987.

#360 Col. Manchion (Barcelona).

Group of very sharp hematite crystals, well defined edges and faces, intense metallic gray color, almost black, with aesthetic iridescent reflections. Very interesting historical piece, from the former Manchion collection.

Size: 5.7 x 5.1 x 4 cm.
Main crystal: 1.4 cm.
Found in 01/1984.

#174 Col. Manchion (Barcelona).
Classic locality

Mimetite Mexican specimens from Ojuela mine (Durango) and Potosí mine (Chihuahua) are the best considered by collectors. Currently those of Ojuela abound, but those of Potosí, with isolated crystals and globular aggregates like this specimen, are more rare to see. They stand out for their intense yellow-green color in some area and on a matrix of rhombohedral crystals of calcite.

Size: 5.6 x 4.7 x 2.3 cm.

Col. Manchion (Barcelona).

These specimens of banded flint were collected decades ago in the area of El Brull, in the Montseny massif, and identified as agate. They appear in nodules and veins, embedded in a siliceous limestone, presenting bands of gray tones, between light to dark gray. These kind of striped flind are well know in jewelery, and very appreciated. It is a unique curiosity of the Catalan mineralogy of many years ago.

Size: 7.0 x 6.0 x 5.9 cm.
Found in 1960's.

For uranium mineral collectors, this carnotite of an intense yellow color, formed by numerous globular aggregates of crystals, covering the surface of the sandstone matrix. An American classic, labeled E. Kucera (Barcelona).

 

 

Size: 5.7 x 2.7 x 1.3 cm.

Col. Manchion (Barcelona).
Presents radioactive activity.

A classic specimen of spinel, bright, defined and well arranged in the matrix. It is not easy to find them in matrix. This well-known extinct small Quebec mica mine is famous for excellent spinel and forsterite crystals.

Size: 4.6 x 3.7 x 2.6 cm.
Main crystal: 1.2 cm.

Col. Manchion (Barcelona). Ex. E. Kucera.

Group of very good size libethenite crystals, with a deep green color, bright and well disposed on the quartz matrix. Samples of libethenite from the Estremoz area are not often seen. They could belong from Miguel Vacas, but the label of Manuel L. Adónis clearly indicates Estremoz, where similar specimens have been found.

Size: 4.3 x 4 x 2 cm.
Main crystal: 6 mm arista/edge.

Col. Manchion (Barcelona). Col. Manuel L. Adónis.

A good size beryl crystal, aquamarine variety, from those of oldtimes. It shows the faces of the hexagonal prism and terminal flat pinacoid. From the Manchion collection (Barcelona).

Size: 8.8 x 4.4 x 3.4 cm.
Found in 1988.

#279 Col. Manchion (Barcelona).

Aesthetic and gemmy anglesite specimen that shows a group of crystals with a razor-sharp chisel terminations, striated faces, characteristic for the species, very sharp and with good transparence and uniform yellow color.

This specimen date to the late 1970s and were found in the well known Moroccan mining area of Touissit. They are considered the world's finest anglesite specimens. Here we offer this "old" specimen from glorious past times.

 

Size: 4 x 3.4 x 3 cm.
Main crystal: 3.0 x 1.3 cm.
Found in ±1989.

#432, JV, Col. Manchion (Barcelona).
Classic locality

Group of topaz crystals of good size, combining vertical prisms with dipyramidal faces, and small pinacoidal forms. Between transparent to translucent, with colour zoning between the core and the terminal faces. They are on a matrix of volcanic rock with growths of opal.

Size: 4.6 x 3.4 x 3.2 cm.
Main crystal: 3.2 cm.
Found in ±1986.

#251 Col. Manchion (Barcelona).

Smoky quartz crystal, good size, with defined faces and edges. It presents small nicks without affecting its aesthetics. Smoked tone, very uniform and with transparence. It comes from the formed collection Manchion (Barcelona) and in the attached information indicates that it was collected in the Montseny massif, which makes it interesting since there are not many specimens in collections from this mountains. With minor feldspar matrix.

Size: 5.7 x 2.2 x 1.8 cm.
Found in 07/1985.

#175 Col. Manchion (Barcelona).

Very sharp hexagonal fluorapatite crystal, with visible colour zoning, more intense in the core area and clearer in edges. Bright and defined, with another doubly terminated smaller crystal on one of the pinacoidal faces. It is accompanied by muscovite.

Size: 4 x 3 x 2.7 cm.
Main crystal: 3.8 x 1.7 cm.
Found in 1989.

Col. Manchion (Barcelona).

Rich aggregate of arsenatian vanadinite crystals "endlichite", with good-sized crystals, interpenetrated, curved faces and edges and good brightness. A Moroccan classic, nowadays it is not easy to find available.

Size: 5.2 x 3.8 x 3.2 cm.
Main crystal: 1.7 cm.
Found in ±1990.

Col. Manchion (Barcelona).

Group of tarnowizite crystals, well defined, some of them interpenetrated. Milky tone and translucent. On a rocky matrix. From this classic locality and from the former Manchion (Barcelona) collection.

 

 

Size: 4 x 3.8 x 3.7 cm.
Main crystal: 2 cm.
Found in ±1987

#365 Col. Manchion (Barcelona).
Fluorescent under long wave UV

Slab of native iron in mafic matrix. Specimen is tilted so reflections of sunlight make iron stand out from matrix. This iron could be refered to kamacite variety (content in Ni, see the apple green tones). It is accompanied by fayalite-forsterite and labradorite. Probably some cohenite is present in the sample. One side polished, natural the other. Analisys will be send to the buyer.

Size: 4.8 x 3.7 x 0.9 cm.

Analyzed specimen with report

Slab of native iron in mafic matrix. Specimen is tilted so reflections of sunlight make iron stand out from matrix. This iron could be refered to kamacite variety (content in Ni). It is accompanied by fayalite-forsterite and labradorite. Probably some cohenite is present in the sample. Both sides polished showing internal structures. Analisys will be send to the buyer.

Size: 4.9 x 3.5 x 0.5 cm.

Analyzed specimen with report

Doubly terminated wiluite floating crystal, a rare calcium, aluminum and magnesium silicate with boron. It presents two prisms of different order, the tetragonal dipyramid truncated by the pinacoid. With a interpenetrated crystal. Good size and deep green colour. Wiluite was accepted as a new species in 1997 belonging to the vesuvianite group. It comes from the type locality for the species.

Size: 2.4 x 2.2 x 1.9 cm.

Type Locality

Doubly terminated wiluite floating crystal, a rare calcium, aluminum and magnesium silicate with boron. It presents two prisms of different order, the tetragonal dipyramid truncated by the pinacoid. really good size and deep green colour. Wiluite was accepted as a new species in 1997 belonging to the vesuvianite group. It comes from the type locality for the species.

Size: 2.6 x 2.3 x 1.7 cm.

Type Locality

Doubly terminated wiluite floating crystal, a rare calcium, aluminum and magnesium silicate with boron. It presents two prisms of different order, the tetragonal dipyramid truncated by the pinacoid. Good size and deep green colour. Wiluite was accepted as a new species in 1997 belonging to the vesuvianite group. It comes from the type locality for the species.

Size: 2.3 x 1.8 x 1.7 cm.

Type Locality

Very sharp single zunyite crystal with good luster, coloured by red hematite inclusions and with some small brilliant foliaceous hematite partially included in faces. Tetrahedron form, truncated by cubic faces. Tetrahedron edge is 16 mm. A good sized and perfect crystallographic specimen of this unusual species, a rare sorosilicate of aluminium and chlorine, with fluorine. Analized by X-ray difracction and X-ray fluorescence.

Size: 1.6 x 1.6 x 1.5 cm.
Found in 2018.

Analyzed specimen with report

Very sharp single zunyite crystal with good luster, coloured by red hematite inclusions and with some small brilliant foliaceous hematite partially included in faces. Tetrahedron form, truncated by cubic faces. Tetrahedron edge is 14 mm. A good sized and perfect crystallographic specimen of this unusual species, a rare sorosilicate of aluminum and chlorine, with fluorine. Analized by X-ray difraction and X-ray fluorescence.

Size: 1.4 x 1.4 x 1.3 cm.
Found in 2018.

Analyzed specimen with report

Very sharp single zunyite crystal with good luster, coloured by red hematite inclusions and with some small brilliant foliaceous hematite partially included in faces. Very clean tetrahedron form, truncated by cubic faces. Tetrahedron edge is 17 mm. A good sized and perfect crystallographic specimen of this unusual species, a rare sorosilicate of aluminum and chlorine, with fluorine. Analized by X-ray difraction and X-ray fluorescence.

Size: 1.6 x 1.6 x 1.5 cm.
Found in 2018.

Analyzed specimen with report

Very sharp single zunyite crystal with good luster, coloured by red hematite inclusions and with some small brilliant foliaceous hematite partially included in faces. Very clean tetrahedron form, truncated by cubic faces. Tetrahedron edge is 12 mm. A good sized and perfect crystallographic specimen of this unusual species, a rare sorosilicate of aluminum and chlorine, with fluorine. Analized by X-ray difraction and X-ray fluorescence.

Size: 1.3 x 1.3 x 1.2 cm.
Found in 2018.

Analyzed specimen with report

In my opinion, among all known radioactive minerals, kasolite is the most aesthetic. It presents forms of elongated to tabular prisms, very well defined and sharp, many of them doubly terminated and of intense yellow color, even with some transparency. It is accompanied by guilleminite crystals of yellowish color. The matrix is partially covered by brilliant malachite. A aesthetic sample from a classic locality, to be observed with attention.

Size: 6.5 x 4.5 x 4 cm.
Main crystal: 1.5 mm

Excol. F. Coune (Belgium).
Presents radioactive activity.