Rosell Minerales

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RM2462   Erythrite

Bou Azzer, Tazenakht, Ouarzazate, Drâa-Tafilalet, Morocco

Erythrite tabular crystals, with intense purple colour and brilliance. About matrix.

Size: 3.8 x 2.8 x 1 cm.
Found in ca. 1987.

Col. J. Astor (Barcelona).


RM2410   Hyaline quartz

Coronel Murta, Minas Gerais, Brazil

Group of very elongated quartz crystals, with developed prisms and well-defined rhombohedral terminal faces. Very transparent. Some faces of the prism show growth oriented cavities.

Size: 6.9 x 4.6 x 3.5 cm.
Main crystal: 6.9 x 1 cm.

Col. J. Astor (Barcelona).

RM2401   Stilbite-Ca and Fluorapophyllite-(K)

Wagholi Quarries, Wagholi, Poonah, Maharashtra, India

This sample shows various aggregates of lanceolate tabular stilbite crystals, with luster and transparence. They are disposed on an upholstered matrix of small crystals of the same species and prismatic crystals, slightly greenish and transparent, of fluorapophyllite- (K).

Size: 9.5 x 7.3 x 4.5 cm.
Main crystal: 2.2 cm.
Found in ca. 1986.

Col. J. Astor (Barcelona).
Classic locality

Price: 45 €Buy

RM2459   Metatorbernite and metaautunite

Margabal, Entraygues-sur-Truyère, Aveyron, Midi-Pyrénées, France

A very rich group of sharp metatorbernite crystals showing tetragonal forms, an intense green color and good luster. It shows polysynthetic and echeloned growths. In some crystals we can observe a yellowish tones in the core which corresponds to metaautunite (fluorescent under UV light). A French mineralogy classic not seen since late 70's.

The walls of the fissures of this mine were covered by smoky quartz crystals. When samples are mined and pull out of the mine, a partially dehydratation occurs (from 12 to 8
H2O molecules) and torbernite become metatorbernite species. Margabal specimens can be classified as metatorbernite.

Size: 4 x 3.4 x 1.7 cm.

Col. J. Astor (Barcelona), ex. J. Viñals.
Presents radioactive activity.

RM2451   Tarnowizite, lead-bearing aragonite

Touissit, Touissit-Bou Beker, Jerada, Oriental Region, Morocco

Group of tarnowizite crystals, a variety of aragonite with a certain lead content, very characteristic of this Moroccan locality. Bright and with well-defined crystals on a galena matrix. An old piece belonging to the Astor collection (Barcelona).

Size: 5.8 x 3 x 2.7 cm.
Found in ca. 1996.

Col. J. Astor (Barcelona).
Classic locality


RM2486   Gurimite

Gurim anticline, Hatrurim, Tamar, HaDarom, Israel

Gurimite is a very rare and chemically simple species. It is a barium vanadate, but in this sample we can observe the presence of P, very common on V minerals. This sample is from the type locality, the Gurim Anticline, in Israel. Aproved in 2013 and published in 2017. Specimen analyzed by Dr. M. Murashko. IMA2013-032. For extrem systematic collectors...

Size: 1.1 x 0.9 x 0.4 cm.

Ex. M. Murashko specimen.
Analyzed specimen with report

Price: 280 €Buy

RM2443   Bahianite

Pico das Almas river, Paramirim das Crioulas, Érico Cardoso, Bahia, Brazil

These alluvial peble specimens of bahianite are a remarkable rarity due to the composition. It is the only known pure aluminum antimonate. Structurally related to simpsonite (Ta instead of Sb). It is normally found as rolled pellets in the Pico das Almas river, in Brazil. It comes from this type locality for the species.

Size: 8 x 6 x 5 mm.

Type Locality
Price: 25 €Buy

RM2448   Sellaite

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg, Baden-Württemberg, Germany

From this classic German locality, Grube Clara, we get this specimen formed by aggregates of acicular crystals of sellaite, an unusual magnesium fluoride.

Size: 2.5 x 2.3 x 1.4 cm.

Classic locality
Price: 25 €Buy

RM2449   Fluorapatite

Imilchil, Er Rachidia, Meknès-Tafilalet, Morocco

A really interesting good size and gemmy fluorapatite crystal. We can observe perfectly the combination of the first and second order prisms; very sharp terminal faces, with first order hexagonal dipyramid. A specimen to enjoy crystallography and aesthetics.
Crystal shows excellent brilliance, transparence and a vivid yellow color with green tones. The specimen is from a Moroccan classic mine located in the Imilchil mountains area.

Size: 2.6 x 1.3 x 1.2 cm.
Found in ca. 2012.

Classic locality

RM2447   Belomarinaite

Fissure Tolbachik Eruption 2012-2013, Plosky Tolbachik volcano, Tolbachik volcano, Kamchatka Krai, Russia

Extraordinary translucent laminar specimen of belomarinaite, an extremely rare sodium and potassium sulphate, of good size and with clearly visible crystalline forms. It refers to both chemistry and structure to aphthitalite. These sulfates are formed in saline deposits and in volcanic fumaroles, as is this case. This specimen comes from the type locality for the species. A unique opportunity for systematic collectors.

Size: 2 x 1.2 x 0.1 cm.
Found in ca. 2017.

Ex. M. Murashko specimen.
Type Locality
Price: 330 €Buy

RM2444   Alumoåkermanite

Turii alkaline Massif, Turii Cape, Murmansk Oblast, Russia

Specimen of alumoåkermanite (IMA2008-049) from the pegmatites of the Kola peninsula. Honey coloured. It is probably accompanied by species such as cebollite and juanite those form a whitish vein. A very rare species, very visible in the polished section. Good size. It comes from the southern part of the Kola Peninsula.

Size: 3.5 x 3.1 x 1.9 cm.

Price: 45 €Buy

RM2441   Tetrahedrite-(Fe) with digenite, malachite and azurite

El Coriellu mine, S. Cosme de Llerandi, Parres, Asturias, Spain

Tetrahedrite crystals from this Asturian mine are well known and prized by Spanish collectors. In this sample we have tetrahedral crystals, one of them predominant, in which the tris-tetrahedron shapes seem to point. Good size and partially covered by malachite. X ray diffraction analysis (we will send to the buyer) has shown the presence of digenite associated with the alteration of the tetrahedrite. A classic.

Size: 3.1 x 2.7 x 2.5 cm.
Main crystal: 1 cm.

Analyzed specimen with report
Price: 40 €Buy

RM2442   Ammineite with atacmite and halite

Pabellón de Pica, Chanabaya, Iquique, Tarapacá, Chile

Sky blue ammeneite occurring as minute crystals on and in halite with green atacamite. From the type locality. This is a fairly rare copper halide and is the first mineral known to contain ammonia radical cation (·NH3) groups.

Size: 3.4 x 2.7 x 2.6 cm.

Price: 95 €Buy

RM2445   Bementite

Parnokskoye deposit, Komi Republic, Russia

Bementite is a very rare manganese silicate, identified in the well-known Franklin mine (NJ, USA), where it has its type locality. This specimen comes from a mining area located in the central zone of the Pre-polar Urals, known for the manganese, rhodonite and magnetite mines. In this specimen we can observe aggregates of crystals with golden tones that stand out on the matrix. An opportunity for systematic collectors.

Size: 3.4 x 2.5 x 2.4 cm.

Price: 45 €Buy

RM2440   Wadeite and aegirine

Kukisvumchorr Mt, Kola Peninsula, Khibiny Massif, Murmanskaja Oblast', Northern Region, Russia

Excellent specimen of this rare potassium and zirconium silicate. It shows rich aggregates of hexagonal crystals, transparent to translucent, with an excellent brilliance. Colourless to slightly violet.They are disposed on a matrix of acicular aegirine crystals with a very dark green color, almost black. The Kukisvumchorr Mountains are in the central part of the Khibiny Massif. The area has a very interesting mineralogy, notable for its nepheline syenites.

Size: 4.2 x 3.5 x 2.8 cm.
Main crystal: 3 mm.


RM2402   Pyromorphite

San Andrés mine, Espiel, Córdoba, Andalucía, Spain

Pyromorphite specimens from the San Andrés mine in Espiel, Córdoba, have been known since the first half of the 20th century. At the beginning of the 80s of this past century several quality specimens were recovered from the mine. This specimen, due to the date on the label of the J. Astor collection (Barcelona), can be dated to this period. The specimen shows several pyromorphite crystals, of good size, brilliant, translucent, thick and with shapes of the hexagonal barrel shaped prism, with the characteristic color between green to yellowish-green. They fill a vug in the goethite matrix. A Spanish classic.

Size: 6 x 3.6 x 3.6 cm.
Main crystal: 0.7 cm.
Found in ca. 1983.

Col. Joan Astor (Barcelona)
Classic locality


RM2403   Baryte

Victoria mine, Cabezo de San Ginés, Cartagena-La Unión, Murcia, Spain

Rich specimen formed by several aggregates of thick pseudo-hexagonal baryte crystals, with luster, white to yellowish colour, that stand out on a matrix of goethite. The baryte specimens from this Spanish mine are highly prized by collectors. This specimen belongs from the former J. Astor collection (Barcelona). With old labels.

Size: 8 x 5.5 x 3.8 cm.
Main crystal: 0.8 cm.
Found in ca. 1996.

Col. Joan Astor (Barcelona)
Classic locality


RM2404   Molybdenite

Inca de Oro, Chañaral/Copiapó, Atacama, Chile

Molybdenite specimens from Inca del Oro are very difficult to find in the market and more with defined crystals. This sample shows a very well defined, bright and well-disposed hexagonal crystal of molybdenite on the matrix. A unique opportunity to include to your collection a very representative and fine specimen for the species. It belongs from the former J. Astor collection (Barcelona). The locality of Inca del Oro is located between the Chilean provinces of Copiapó and Chañaral.

Size: 7.3 x 4.8 x 3.5 cm.
Main crystal: 1.5 cm.
Found in ca. 1980's.

Col. Joan Astor (Barcelona).

RM2400   Opal and Wood Opal

White Cliffs, Yungnulgra Co., New South Wales, Australia

Very interesting specimen of opal with opalescence of violet, blue, green colors that fill the fissures of a xylopal. Very aesthetic due to its arrangement in veins, contrasting with the sienna warm colors of fossil wood. This Australian locality is known for opalized pineapples. Specimens from this locality are difficult to find.

Size: 10.6 x 3 x 2.5 cm.
Found in ca. 1983.

Col. Joan Astor (Barcelona).


RM2481   Opal

Quilpie Shire, Queensland, Australia

A classic banded opal from Australia, with violet, green, blue colors. With a good exposed surface showing opalescence. It comes from the A. Trigo collection.

Size: 4.8 x 4 x 2.1 cm.
Found in ca. 1988.

Col. Antonio Trigo (Mataró).


RM2482   Opal

Urals, Russia

Very glassy opal specimen, with excellent transparency and yellowish bands. From an unusual area of Russia for this variety of quartz. It was acquired by A. Trigo (Mataró) in 1983, in Expominer Mineral Show (Barcelona).

Size: 4.5 x 3.9 x 1.5 cm.
Found in ca. 1983

Col. Antonio Trigo (Mataró).


RM2439   Quartz

Boulemane area, Fès-Meknès, Morocco

Druse of quartz crystals, milky to hyaline at the tips, with a certain reddish hue. It comes from a Moroccan locality unknown in collections, located in the Boulemane area, north of Aouli. Formed in volcanic rocks.

Size: 8.2 x 7 x 5 cm.
Main crystal: 0.8 x 0.7 cm.
Found in 03/2020

Price: 35 €Buy

RM2480   Opal

Opal Butte, Morrow Co, Oregon, United States

An extremely glassy opal specimen, transparent to translucent, with bluish to golden tones. An excellent specimen of opal from this classic American locality. It shows some fluorescence under ultraviolet (LW) light. An old piece from the A. Trigo collection (Mataró).

Size: 4.7 x 4.1 x 1.6 cm.
Found in ca. 1991.

Col. Antonio Trigo (Mataró).
Fluorescent under long wave UV


RM2472   Fluorite and galena

Naica Mine, Naica, Saucillo municipio, Chihuahua, Mexico

Group of very sharp cubic crystals of fluorite, very transparent, colorless, brilliant and in staggered growth. It presents certain very curious inclusions. Minos matrix of galena. Very aestetic. From the former Trigo Collection (Mataró).

Size: 3.3 x 3.3 x 3.1 cm.
Found in ca. 1988.

Col. Antonio Trigo (Mataró).

Price: 55 €Buy

RM2478   Rhodochrosite and quartz

Huaron mines, Huayllay, Pasco, Peru

Groups of aggregates of rhodochrosite crystals, of a delicate pink color, brilliant. They are accompanied by colorless aggregates of small quartz crystals. Very aesthetic.

Size: 5.6 x 4.1 x 2.2 cm.
Found in ca. 1988.

Col. Antonio Trigo (Mataró).