Rosell Minerales
RM3233 Silver and acanthite
Balcoll mine, Pozo 2 (shaft 2), Falset, Tarragona, Catalunya, SpainIn 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
RM3232 Silver and Chrysocolla
Clara Mine, Oberwolfach, Ortenaukreis, Freiburg, Baden-Württemberg, GermanyThe silver specimens from this classic German mine has been known for a long time, but in these specimens silver is included in chrysocolla, of an intense greenish blue colour, and shows a remarkable luster, sometimes with golden iridescence. Under magnification we can see facets of crystals of this metal. We have analyzed these samples and the results indicate that they do not contain other metals detectable by SEM-EDS. These specimens are already a few years old.
Size: 6.7 x 3.6 x 3.4 cm.
Found in ±2000.
Classic locality

RM3229 Arfvedsonite and Orthoclase
Mount Malosa, Zomba, MalawiExcellent, pure aesthetics. It is a group of arfvedsonite crystals of intense black color, shiny, with defined and shiny faces, arranged on a matrix of feldspar, orthoclase. From the Nicolau collection (Barcelona), with a handwritten label by Joan Viñals.
Size: 5.7 x 3.7 x 3 cm.
Main crystal: 1.7 x 1.5 cm.
Col J. Viñals. Col. E. Nicolau (Barcelona).

RM3334 Kyanite, staurolite and paragonite
Alpe Sponda - Pizzo Forno, Val Chironico, Leventina, Ticino, SwitzerlandGroup of kyanite crystals, of gem quality, with transparency and when light passes through them they offer an exceptional color. They are accompanied on the matrix by brown staurolite crystals and paragonite (Na mica). They stand out on a clear schistose matrix. A quality European piece that is difficult to see today. Classic and aesthetic material from this famous Swiss locality from the E. Nicolau collection (Barcelona).
Size: 8 x 6 x 3 cm.
Main crystal: 50 x 0.8 mm.
Found in ±1990.
Col. E. Nicolau (Barcelona).
RM3261 Variscite
Ribeirão Cascalheira, Mato Grosso, BrazilGlobular aggregate of variscite crystals, apple green in color and with transparency and shine, aesthetically arranged in a cavity of the matrix. Uncommon and of good quality for a find from years ago.
Size: 6.6 x 5 x 3 cm.
Main crystal: 4 mm. glob.
Found in ±1997.
Col J. Viñals. Col. E. Nicolau (Barcelona).

RM3260 Tacharanite and basalt
Bramburg quarry, Adelebsen, Göttingen, Lower Saxony, GermanyDruse of small white crystals of tacharanite (basalt-hosted zeolite) forming aggregates with approximately globular shape, coating a basalt rocky matrix. Really interesting sample and locality.
Size: 7.8 x 6.6 x 6.4 cm.
Found in ±1997.
Col. E. Nicolau (Barcelona).

RM3259 Bournonite and sphalerite
Saint-Laurent-le-Minier, Le Vigan, Gard, Occitània, FranceLarge group of bournonite crystals, brilliant, with complex and interpenetrated faces. They are accompanied by honey tone sphalerite crystals. The specimen is accompanied by a label that identifies it as from Saint-Laurent-Le-Minier (Sent Laurenç del Minièr), although it is more likely that it is from the Saguinede mine in Montdardier, very close to Saint-Laurent.
Size: 102 x 7 x 4.5 cm.
Found in ±1980.
Col. E. Nicolau (Barcelona).

RM3258 Pyromorphite
Mine des Farges, Ussel, Corrèze, Limousin, FranceDruse of prismatic acicular pyromorphite crystals, transparent, shiny and with the characteristic green color. They are arranged on a quartz matrix. A very aesthetic piece from the Nicolau collection (Barcelona) and with a Joan Viñals label.
Size: 6.8 x 6.8 x 4.4 cm.
Found in ±1990.
Col J. Viñals. Col. E. Nicolau (Barcelona).
Classic locality

RM3257 Wavellite
Mauldin Mountain Quarries, Mauldin Mt., Montgomery Co., Arkansas, United States of AmericaThis specimen, from the Mauldin Mountain quarries, shows an attractive coating of bright-green, botryoidal wavellite on fractured dark gray chert. The wavellite is microcrystalline, making the sparkle in the picture. Very characteristic green colour and good size specimen.
Size: 10.8 x 8.3 x 4.8 cm.
Main crystal: 7 mm.
Col J. Viñals. Col. E. Nicolau (Barcelona).

RM3256 Childrenite and polythionite
Poço d'Antas claim, Piauí Valley, Taquaral, Itinga, Minas Gerais, BrazilGroup of childrenite crystals, well defined, transparent to translucent, accompanied by aggregates of polythionite (mica group). They are disposed on a matrix with feldspar and quartz.
Size: 6.5 x 4.8 x 3.2 cm.
Main crystal: 5 mm.
Col J. Viñals. Col. E. Nicolau (Barcelona).

RM3340 Fluorapatite, hematite, quartz and calcite
Cemeterio de Manzanera, Manzanera, Teruel, Aragón, SpainIn this specimen, obtained in the Manzanera cemetery area, we can observe numerous calcite crystals with quartz, some hematite crystal and, hidden, a yellowish fluorapatite crystal, well defined and transparent. Unique specimen from a very little-known locality.
Size: 4.3 x 3.6 x 3.5 cm.
Main crystal: 3.2 mm.
Found in 2000.
RM3249 Hematite and quartz
Cementerio de Manzanera, Manzanera, Teruel, Aragón, SpainThe specimens of hematite from the Sandra quarry, where dolerites (ophites) are exploited, are known by local collectors, but those extracted in the Manzanera cemetery area have not been as abundant and of high quality. This specimen comes from the Marí-García collection (Castelló) and was collected in 2000. The hematite crystals form isolated "leaves" that are very shiny and iridescent, unlike the quarry. Very aesthetic and unique specimen.
Size: 5 x 4.8 x 4.4 cm.
Main crystal: 2.4 mm.
Found in 2000.
RM3244 Thomsonite-Ca
Campo de Calatrava volcanoes, Ciudad Real, Castilla-La Mancha, SpainWhite globular aggregates of thomsonite-Ca, on the basaltic matrix. Excol. M. Marín de Castelló. A classic specimen of Spanish mineralogy.
Size: 5.4 x 4.5 x 3.2 cm.
Main crystal: 3.5 mm.
Found in ±2000.
RM3242 Clinoclase and quartz
Clara Mine, Oberwolfach, Ortenaukreis, Freiburg, Baden-Württemberg, GermanyGroups of intensely colored clinoclase crystals that stand out on the quartz matrix.
Size: 7.2 x 4.7 x 4.7 cm.
Main crystal: 4 mm.
Found in ±2000.
Classic locality
RM3245 Pseudomalachite
Los Azules mine, Quebrada San Miguel, Copiapó, Atacama, ChileVery rich druse of pseudomalachite crystals of intense green color, forming defined, translucent prismatic tabular crystals. Specimens of this species in this mine are rare. The piece belonged to the E. Laskowski collection (Tucson, USA), with the seller's label. Very interesting specimen.
Size: 7.2 x 3.9 x 3.7 cm.
Col. E. Nicolau (Barcelona).
Classic locality
RM3246 Silver and Chrysocolla
Clara Mine, Oberwolfach, Ortenaukreis, Freiburg, Baden-Württemberg, GermanyThe silver specimens from this classic German mine has been known for a long time, but in these specimens silver is included in chrysocolla, of an intense greenish blue colour, and shows a remarkable luster, sometimes with golden iridescence. Under magnification we can see facets of crystals of this metal. We have analyzed these samples and the results indicate that they do not contain other metals detectable by SEM-EDS. These specimens are already a few years old.
Size: 5.2 x 4.8 x 2.1 cm.
Main crystal: 12 mm. aggr.
Found in ±2000.
Analyzed specimen with report

RM3241 Dadsonite, boulangerite and siderite
Sant Ponç, Barceloneta de Provença, Alpes-de-Haute-Provence, Provence-Alpes-Côte d'Azur, FranceDadsonite is a rare chloro-sulfoantimonide of lead, compositionally differing from boulangerite by this chlorine anion (1 atom of Cl for 60 atoms of S!). In the "bad-lands" area of Sant Ponç (or Saint-Pons) there are lenticular levels of siderite and calcite. The formation of this rare sulfosalt is based on the redissolution of other sulfosalts in the presence of chlorides.
The fine needles of dadsonite usually appear included in calcite, along with boulangerite. Once the calcite is removed by chemical processes, needles emerge in all their beauty. It can also be found forming radial aggregates in matrix cavities. The dadsonite from Sant Ponç can probably be considered among the best worldwide.
Size: 7.2 x 5 x 3.8 cm.
Found in ±1997.
Analyzed specimen with report

RM3240 Dadsonite, boulangerite and siderite
Sant Ponç, Barceloneta de Provença, Alpes-de-Haute-Provence, Provence-Alpes-Côte d'Azur, FranceLa dadsonita es un raro cloro-sulfoantimoniuro de plomo (1 átomo de cloro por cada 60 de azufre), composicionalmente difiere de la boulangerita por este anión de cloro. En la zona de las "bad-lands" de Sant Ponç (o Saint-Pons) se encuentran niveles lenticulares de siderita y calcita. La formación de esta rara sulfosal se basa en la redisolución de otras sulfosales en presencia de cloruros.
Las finas agujas de dadsonita suelen aparecen incluídas en calcita, junto con boulangerita. Una vez la calcita se elimina mediante procesos químicos als finas agujas afloran en toda su belleza. También se la puede encontrar formando agregados radiales en cavidades de la matriz. Probablemente, la dadsonita de Sant Ponç puede considerarse entre las mejores del mundo.
Size: 6.6 x 5.2 x 4.3 cm.
Found in ±1997.
Analyzed specimen with report

RM3247 Olivenite, cornwallite and malachite
Ibiajara, Rio do Pires, Bahía, BrazilOlive green prismatic olivenite crystals are arranged on a goethite matrix, along with dark green cornwallite and light green malachite aggregates. Brazil seems to have a little bit of everything when it comes to deposits, and even though it's best known for it gem pegmatites, there are all sorts of curious localities like Ibiajara where copper minerals (and even a little gold) have been found.
Size: 5 x 4.7 x 3 cm.
RM3301 Calcite, Fluorite, quartz and pyrite
El Hammam Mine, Djebel el Hammam, Meknès, Meknès-Tafilalet, MoroccoGroup of fine prismatic crystals of calcite of hexagonal shape, with colour zoning and small recrystallizations of the same calcite in some areas of the piece. The crystals are on a fluorite matrix with quartz and small pyrite crystals. Both calcite (red-pink) and fluorite fluoresce under UV light.
Size: 8.5 x 5.2 x 3.9 cm.
Main crystal: 19 mm.
Fluorescent under long wave UV

RM3300 Calcite, Fluorite, quartz and pyrite
El Hammam Mine, Djebel el Hammam, Meknès, Meknès-Tafilalet, MoroccoGroup of fine prismatic crystals of calcite of hexagonal shape, with colour zoning and small recrystallizations of the same calcite in some areas of the piece. The crystals are on a fluorite matrix with quartz and small pyrite crystals. Both calcite (red-pink) and fluorite fluoresce under UV light.
Size: 7.8 x 5 x 4 cm.
Main crystal: 8 mm.
Calcite is fluorescent under LW-UV.
RM3299 Anglesite and Galena
Touissit, Touissit-Bou Beker, Jerada, Oriental Region, MoroccoAnglesite specimens from this classic Moroccan mine are quite difficult to find. In this piece we can see numerous lanceolated prismatic crystals of this lead sulphate, very brilliant, with well defined faces and edges, transparent and showing the natural yellow colour characteristic of this species and mine. They are disposed filling cavities in a galena matrix.
Size: 7.8 x 4.7 x 4 cm.
Main crystal: 6 mm.
Found in ±1990.
RM3296 Aragonite
Tazouta, Sefrou, Fès-Meknès, MoroccoCluster of aragonite crystals, very bright and defined. They are known in the area as "sputnik stones" (sic) because of their appearance. They present a color zoning on the surface, between gray and brown. They are floating. A Moroccan curiosity.
Size: 8.2 x 6.5 x 5.3 cm.
Main crystal: 10 mm.
RM3297 Aragonite
Tazouta, Sefrou, Fès-Meknès, MoroccoPineapple cluster of aragonite crystals, with transparence, very bright and defined. They are known in the area as "sputnik stones" (sic) because of their appearance. They present a color zoning on the surface, between gray and brown. They are floating. A Moroccan curiosity.
Size: 6.3 x 6 x 6 cm.
Main crystal: 16 mm.
RM3294 Sulphur with calcite
La Serrata mines, La Serrata, Lorca, Murcia, SpainGroup of good-sized sulphur crystals from a classic Spanish locality, but from a little-known mine, showing a great richness of faces, some brilliance and a canary yellow color. It is arranged in a cavity with calcite crystals. A fine Spanish specimen.
Size: 8.6 x 7.5 x 6 cm.
Main crystal: 5 mm.
Col. E. Nicolau (Barcelona).
Please, select the map area or searchin the countries index.
- Europe (1132)
-
- Germany (51)
- Austria (11)
- Belgium (7)
- Bulgaria (12)
- Denmark (1)
- Slovakia (6)
- Slovenia (1)
- Spain (722)
- Finland (1)
- France (101)
- Greece (13)
- Hungary (9)
- Ireland (1)
- Iceland (2)
- Italy (60)
- Kosovo (18)
- Norway (7)
- Poland (3)
- Portugal (28)
- United Kingdom (28)
- Czech Republic (7)
- Romania (13)
- Sweden (4)
- Switzerland (21)
- Ukraine (5)
- Oceania (32)
- Asia (184)
- South America (206)
- Central America (1)
- Noth America (197)
- Africa (498)
