Rosell Minerales

Wavellite specimens from Arkansas are becoming rare from this locality. In this remarkable sample we can see globular aggregates of crystals of this phosphate, with a second generation that covers them partially and of a lighter green color. Good color and aesthetics. A real classic.

Size: 7.8 x 7 x 3.4 cm.

Classic locality

Senegalite is a rare aluminium phosphate. In this specimen we can observe several prismàtic transparent crystals on blue turquoise. This specimen is from the type locality for the species.

Size: 7 x 5 x 3.5 cm.

Type Locality - Localidad Tipo
Fluorescent under long wave UV

Huge size gypsum twinned crystal from a classic Spanish locality. From the Manchion collection (Barcelona).

Size: 13.2 x 6 x 3 cm
Found in 1986.

Classic locality

Very esthetic specimen formed by some groups of prismatic crystals of adamite, contrasting on a matrix of goethite. The crystals have a very uniform yellow color, with transparency, with very well defined faces and edges and forming rosettes. We can also observe isolated doubly terminated crystals and some almost colorless. A pleasure under the loupe magnifying glass. Good size.

Size: 7.5 x 7.5 x 3.2 cm.
Main crystal: 20 mm aggreg.

Fluorescent under long wave UV

Glaucophane is an unusual species member of the amphibol group. This Italian locality is known worldwide for the good specimens of this species. It is usually covered with calcite, which once removed shows sculptural aggregates of striated tabular to prismatic translucent crystals, with an intense bluish-gray color, almost violet. In the cavities appear small orange crystals of rutile and groups of chromian muscovite (var. fuchsite). Pyrite crystals also can be found. A good sized and very aesthetic combination from this classic locality.

Size: 8 x 6.5 x 4.5 cm.
Main crystal: 14 mm.

This English specimen shows us a group of calcite crystals, one of them of larger size, interpenetrated, twinned, with a color between honey to white. With defined faces and edges, translucent. In the back it shows a exfoliated part. A sample from a mine not well represented in collections. From the Adrian collection, a dealer and collector from the United Kingdom. Label will be send with specimen.

Size: 9 x 6.4 x 6 cm.
Found in 09/1982

Fluorescent under long wave UV

Samples of the tungsten mine of the Parrilla are very difficult to obtain today. This specimen comes from the Manchion collection and was acquired from Dr. Joan Viñals in 1991. It shows us a druse of quartz with groups of arsenopyrite crystals stand out, with very well defined faces and edges, good brightness, interpenetrated and complete. The Parrilla was a large tungsten mine, nowadays inactive. With the Manchion handwriten label.

Size: 8 x 5.5 x 4.5 cm.
Main crystal: 7 mm
Found in ±1991.

Col. J.M. Manchion, Barcelona. Num. 521.
Classic locality

Brilliant botryoidal hematite specimen. In the back side we observe very esthetic concentric growths of different colours, fibrous, of hematite. These pieces have been cleaned in origin with sand which eliminates the surface oxide layer to let us see these spherical forms of good size. Very curious Moroccan novelty.

Size: 7.8 x 6 x 3 cm.
Found in 2018.

From what has been analyzed, Imini pyrolusites are partially replaced by manganite. This specimen is not at all common, since it shows us shapes in sheaf that remind us the German manganite specimens. Intense black color, very defined crystalline aggregates, with some isolated crystals... An exceptionally rare sample. On baryte matrix.

Size: 8.4 x 6.5 x 5 cm.
Main crystal: 8 x 4 mm.
Found in 2017

These specimens of wulfenite with the chocolate brown to orange tone are very appreciated by collectors and very difficult to see today, unless they come from former collections with tradition. This specimen shows a large group of tabular crystals, very brilliant and translucent, few small nick that does not affect the aesthetics of the specimen. A classic piece.

Size: 6 x 5.8 x 5.2 cm.
Main crystal: 7 x 6 mm.
Found in ±2002.

Classic locality

Very curious specimen of hydroxylapophyllite-(K) formed by numerous crystals inside a geode resembling a nodule. They are accompanied by small needles of calcite very fluorescent (bluish).

Size: 6.5 x 3.8 x 3.5 cm,
Main crystal: 6 x 6 mm.
Found in 2017.

Calcite is fluorescent under LW-UV.

Very rich curite specimen, with some intense orange color crystals and the rest black due to being coated by heterogenite. The sample comes from the former Coune collection and according to its owner was adquired from the 90s, but specimen could be older. Curite crystals are disposed in a very contrasted way on the white matrix. From the type locality for the species.

Size: 5 x 3.5 x 3 cm.

Localidad Tipo - Type Locality
Presents radioactive activity.

The Greenlaws mine is located in Weardale, in the northern Pennines of England, south of the small town of Daddry Shield. Around we find famous mines such as Rogerly, Boltsburn or Heights... This Greenlaws mine was worked for the galena between 1840 and 1901, being one of the most important lead mines in the area. In 2009 a group of collectors started the "Greenlaws mining project". After almost 5 years digging out the vertical shaft over 80 meters (270 ft) appeared the first specimens of fluorite, ending 2013.
This specimens we propose has been extracted from vugs found in a new connecting tunnel at 270 ft, between main shaft to a second contiguous adit. Good brilliance, transparence, with geometric color zoning that varies between purple to blue according to the incident light. With defined faces and edges and these characteristic whitish internal structures. Extremely fluorescent.

Size: 11 x 10.5 x 5.5 cm.
Main crystal: 14 x 12 mm.
Found in 07/2018.

Fluorescent under long wave UV

Rich radial aggregates of hydroboracite crystals, colorless to white, with a very intense adamatin luster. SEM-EDS analysis show the absence of sodium, with magnesium and calcium predominant. Boron can not be observed with this spectroscopic technique. Turkey is one of the largest producers of borates in the world, with reserves that surpass those of other countries such as USA, China or Russia. The borate works are located a few miles SE of Kestelek. Spectacular fluorescence yellow for hydroboracite and orange for probertite.

Size: 8.7 x 6.5 x 4.5 cm.

Fluorescent under long wave UV

Rich radial aggregates of hydroboracite crystals, colorless to white, with a very intense adamatin luster. SEM-EDS analysis show the absence of sodium, with magnesium and calcium predominant. Boron can not be observed with this spectroscopic technique. Turkey is one of the largest producers of borates in the world, with reserves that surpass those of other countries such as USA, China or Russia. The borate works are located a few miles SE of Kestelek. Spectacular fluorescence yellow for hydroboracite and orange for probertite.

Size: 8 x 5.5 x 5 cm.

Fluorescent under long wave UV

Group of smoky quartz crystals on a matrix of microcline crystals covered by albite. They present some nick but for me it is a very good and historical specimen. From a classic Catalan locality and from the Daunis collection (Barcelona).

Size: 10 x 9.5 x 5.5 cm.
Main crystal: 5.5 x 2.8 cm.
Found in ±1970.

Col. Daunis (Barcelona)
Classic locality

Celestine crystals from this locality are very appreciated by the collectors of Spanish minerals for their color, brilliance and definition of faces. This specimen shows several celestine crystals of good size, acute, with well defined faces, transparent to translucent and with a visible sky blue color. They are disposed on a matrix with calcite crystals. Nowadays it is not easy to find crystals with this size and quality from this locality.

Size: 12.4 x 8 x 4 cm.
Main crystal: 26 x 11 mm.

Col. Jordi Povill (Olesa de Montserrat, Barcelona)
Classic locality

Rich groups of radiated celestine crystals, from this Spanish classic locality. This mine is also known as Rica mine. Good size and aesthetic specimen.

Size: 6.6 x 6.4 x 5 cm.

Classic locality

Two crystals of elbaite in parallel growth. Intense color, with greenish transparence on the upper part. Striated prismatic faces with very clear terminal rhombohedrons. A little gem...

Size: 3.8 c 1.2 x 0.6 cm.

Col. J.M. Manchion, Barcelona.

Prismatic crystal of bicolored elbaite, with striated faces and defined terminal rhombohedrons with pinacoid. With white clevelandite.

Size: 3 x 1.5 x 1 cm.
Main crystal: 30 x 5 mm.

Group of hyaline quartz crystals, well developed and defined, with some curious crystals of fluorapatite, with a marked geometrical color zoning and inclusions. Theya re accompanied by brilliant pyrite crystals on muscovite and siderite.

Size: 9.5 x 8.5 x 6 cm.
Main crystal: 8 x 8 mm. F-ap
Found in ±1980.

Col. J.M. Manchion, Barcelona.
Fluorescent under long wave UV

Curious specimen of a classic locality formed by numerous galena cube octahedrons. They have very defined forms, idiomorphic crystals but hollow inside. They upholster the dolomite matrix. for lovers of the curiosities from Moroccan mines. An old sample.

Size: 8.8 x 7.5 x 5 cm.
Main crystal: 4 mm.
Found in ± 1987.

Classic locality

Specimens from this Australian mine are unusual today. In this sample we have a group of azurite crystals pseudomorphized by malachite, preserving very well defined faces and edges. They are disposed on a goethite matrix partially coated with malachite, chrysocolla and small yellow crystals of wulfenite.

Size: 8.2 x 4.5 x 1.8 cm.
Main crystal: 18 x 17 mm.
Found in ±1985.

Col. J.M. Manchion, Barcelona. Nr. 190, 1985 Expominer.

Rich cluster of smoky quartz crystals on a matrix of microcline crystals covered by albite. They present some nick but for me it is a very good and historical specimen. From a classic Catalan locality and from the Daunis collection (Barcelona).

Size: 10.5 x 8 x 6 cm.
Found in ±1970

Col. Daunis (Barcelona)
Classic locality

In this specimen we can enjoy groups of tabular crystals showing well defined faces and parallel growths. They are interpenetrated between them and accompanied by small but perfect tabular wulfenite crystals. Some of them present small ding, very common in this samples, but this one is really good. The brilliance is good and in thin parts showing transparence. They are very aerial disposed on the matrix.

Size: 6.3 x 5 x 3.7 cm.
Main crystal: 7 x 6 mm.
Found in ±1998

Classic locality