Rosell Minerales
RM2128 Epidote, quartz & actinolite
Imilchil, Er Rachidia, Meknès-Tafilalet, MoroccoFan-shaped aggregates of epidote crystals with an intense green color and luster. They are accompanied by hyaline quartz crystals and fine olive green actinolite needles. A different specimen from this classic Moroccan locality.
Size: 8,6 x 6,5 x 5,2 cm.
Main crystal: 2 cm.
RM2509 Evansite
Ocells quarry, Santa Creu d'Olorda, Barcelona, Catalunya, SpainEvansite specimens from Santa Creu d'Olorda are a classic of Catalan mineralogy. In this specimen we can see an amorphous mass of this aluminum phosphate with an intense green color and a vitreous luster. It is disposed on a graphite-bituminous shale matrix.
Size: 7.6 x 3.8 x 3.6 cm.
Classic locality
RM2508 Segnitite, phillipsbornite and hinsdalite
Generala - Cerro de las Cogullas (La Cogolla) mine, Losacio, Zamora, SpainClassic specimen from this Zamora mine, rare to see today, formed by a layer of greenish-yellow segnitite crystals; under the magnifying glass we can see small crystals. It is accompanied by phillipsbornite and hinsdalite, of a more brownish to reddish tone. Good size specimen from this classic Spanish locality.
Size: 6.8 x 5.5 x 4 cm.
Found in 2000
RM2507 Pyromorphite
Resuperferolítica mine, Solana de la Canaleja, Santa Eufemia, Córdoba, Andalucía, SpainGroup of hexagonal pr¡smatic crystals showing a good brilliance, characteristic color and very well defined faces and edges. From a classic Spanish mine.
Size: 12 x 7.8 x3.5 cm.
Main crystal: 1.1 cm.
Found in 1999.
RM2529 Fluorite
Sant Marçal (Matagalls) mines, Sant Marçal, Massís del Montseny, Viladrau, Girona, Catalunya, SpainDruse of very well defined cubic fluorite crystals, transparent to translucent, with luster and a slightly greenish blue color. They are accompanied by small crystals of calcite. From this classic Catalan mines. Acquired by Joan Astor from Joan Montplet, a well-known mineral dealer from Sant Celoni, close to the Montseny massif.
Size: 4.5 x 4 x 3.6 cm.
Main crystal: 1.3 cm.
Found in ca. 1979.
Col. Joan Astor (Barcelona).

RM2527 Twinned Rutile
Diamantina, Minas Gerais, BrazilGroup of rutile crystals with a highly visible cyclic twin. A brilliant piece with years... From the Joan Astor collection.
Size: 2.7 x 2.3 x 1.9 cm.
Found in ca. 1980.
Col. Joan Astor (Barcelona).

RM2515 Artinite and serpentine
Staten Island (Richmond Co.), New York City, New York, United StatesA rare specimen collected in an urban setting. Colorless to white radial aggregates of acicular artinite crystals on a serpentine matrix. Aesthetic, good size, excellent quality, very rich, from the classic Staten Island locality. Artinite is a rare hydrated magnesium carbonate. This piece comes from the J. Astor collection, acquired in 1980 from Bailey Minerals (Ángel Jesús Talabán García, Segovia 1942-Madrid 2007). With old labels. An USA classic nowadays not easy to find.
Size: 6.6 x 3.6 x 3.4 cm.
Main crystal: 1.5 cm. aggr.
Found in ca. 1980.
Col. Joan Astor (Barcelona).
Classic locality

RM2522 Quartz
Andranotokana Massif, Andilamena, Alaotra-Mangoro, MadagascarGroup of hyaline quartz crystals, very transparent, brilliant, with complex shapes due to polycrystalline and window growths. With orange inclusions. Very aesthetic and interesting specimens from a new Malagasy locality.
Size: 4.8 x 4.2 x 2.2 cm.
Found in 2018.
RM2523 Scepter quartz
Andranotokana Massif, Andilamena, Alaotra-Mangoro, MadagascarCurious parallel growth of quartz crystals in scepter. A very aesthetic miniature of a new locality in Madagascar.
Size: 3 x 1.5 x 1 cm.
Found in 2018.
RM2521 Scepter quartz
Andranotokana Massif, Andilamena, Alaotra-Mangoro, MadagascarGroup of hyaline quartz crystals, very brilliant, one of them more developed and showing the scepter growth stands out. With polycrystalline growths. An aesthetic novelty from Madagascar.
Size: 3.8 x 2.7 x 1.8 cm.
Main crystal: 2.7 cm.
Found in 2018.
RM2520 Quartz
Andranotokana Massif, Andilamena, Alaotra-Mangoro, MadagascarAesthetic quartz specimen, very transparent and with orange inclusions. It shows a very curious window growths and some facets of the rhombohedron. These specimens come from a little-known locality. Really interesting.
Size: 4.3 x 3 x 1.9 cm.
Found in 2018.
RM2505 Quartz
Serrabal mine, Vedra, A Coruña, Galícia, SpainGroup of quartz crystals, with developed prisms and defined terminal faces, between transparent to translucent. They are disposed very aerially on the matrix partially dotted with kaolinite.
These specimens were collected in this A Coruña quarry that exploits quartz, one of the main mines in the world due to the quality and quantity of its reserves. The mine was discovered in 1968 by three Galicians who gave their name (from their surnames SEñarís, RAma and BALboa) to the concession and who found it while exploring these mountains in the Pico Sacro area in search of "seixo" (from the Galician: hard white rock) of good quality.
Size: 7.5 x 6.2 x 6 cm.
Main crystal: 3.8 cm.
Found in 2017.
RM2503 Fluorite
Mandronarivo area, Mandronarivo, Beroroha, Atsimo Andrefana, Toliara, MadagascarA good size specimen showing a group of cubic fluorite crystals, between translucent and transparent, with an intense green color with delicate dichroism under sunlight. The crystals are interpenetrated and show geometric color zoning and interesting and esthetic inclusions of white color. Very fluorescent under LW-UV and SW-UV. New locality for fluorite in Madagascar.
Size: 12 x 9.5 x 7 cm.
Main crystal: 3.6 cm.
Found in 2018.
Fluorescent under LW-UV and SW-UV lights
RM2502 Fluorite
Mandronarivo area, Mandronarivo, Beroroha, Atsimo Andrefana, Toliara, MadagascarA good size specimen showing a group of cubic fluorite crystals, between translucent and transparent, with an intense green color with delicate dichroism under sunlight. The crystals are interpenetrated and show geometric color zoning and interesting and esthetic inclusions of white color. Very fluorescent under LW-UV and SW-UV. New locality for fluorite in Madagascar.
Size: 15.5 x 7.7 x 6.8 cm.
Main crystal: 2.2 cm.
Found in 2018.
Fluorescent under LW-UV and SW-UV lights
RM2496 Calcite after glauberite
Camp Verde, Yavapai Co., Arizona, United StatesThis specimen is one of the well-known calcite after glauberite pseudomorphs from Arizona. This aesthetic floating specimen shows interpenetrated crystals, very well defined faces and edges and a delicate cream tone. A classic by itself.
Size: 3.9 x 2.4 x 2.1 cm.
RM2495 Calcite after glauberite
Camp Verde, Yavapai Co., Arizona, United StatesThis specimen is one of the well-known calcite after glauberite pseudomorphs from Arizona. This aesthetic floating specimen shows interpenetrated crystals, very well defined faces and edges and a delicate cream tone. A classic by itself.
Size: 4 x 3.9 x 2.7 cm.
RM2494 Calcite after glauberite
Camp Verde, Yavapai Co., Arizona, United StatesThis specimen is one of the well-known calcite after glauberite pseudomorphs from Arizona. This aesthetic floating specimen shows interpenetrated crystals, very well defined faces and edges and a delicate cream tone. Good size. A classic by itself.
Size: 5.7 c 2.6 x 2.2 cm.
RM2493 Calcite after glauberite
Camp Verde, Yavapai Co., Arizona, United StatesThis specimen is one of the well-known calcite after glauberite pseudomorphs from Arizona. This aesthetic floating specimen shows interpenetrated crystals, very well defined faces and edges and a delicate cream tone. Good size. A classic by itself.
Size: 5.2 x 2.9 x 2.9 cm.
Classic locality
RM2490 Twinned Aragonite
Minglanilla, Cuenca, Castilla-La Mancha, SpainThis Spanish aragonite specimen shows two twinned and interpenetrated crystals. They have a really good brilliance and tones those varies from whitish to brown, translucent. Twinned cyclically on {110} and showing a hexagonal prismatic habit. It comes from the Arguijo collection.
Size: 3.6 x 2.8 x 2.3 cm.
Main crystal: 2.9 & 2.2 cm.
Found in ca. 1980.
Col. A. Arguijo (L'Hospitalet de Llobregat).
RM2488 Twinned aragonite
Minglanilla, Cuenca, Castilla-La Mancha, SpainThis Spanish aragonite specimen shows several twinned and interpenetrated crystals, one of them with a big size. They have a really good brilliance and tones those varies from whitish to brown, translucent. Twinned cyclically on {110} and showing a hexagonal prismatic habit. It comes from the Arguijo collection.
Size: 5.2 x 4.8 x 4.6 cm.
Found in ca. 1980.
Col. A. Arguijo (L'Hospitalet de Llobregat).
RM2489 Twinned aragonite
Minglanilla, Cuenca, Castilla-La Mancha, SpainThis Spanish aragonite specimen shows several twinned and interpenetrated crystals, one of them with a big size. They have a really good brilliance and tones those varies from whitish to violet, translucent. Twinned cyclically on {110} and showing a hexagonal prismatic habit. It comes from the Arguijo collection.
Size: 5.1 x 4.8 x 4.2 cm.
Found in ca. 1980.
Col. A. Arguijo (L'Hospitalet de Llobregat).
RM2497 Aluminium
Bulla Island, Caspian Sea, Gobustan, AzerbaijanSmall particles containing grains of native aluminum, an extreme rarity. In the images we can see that they are associated with magnetite. They most likely contain akdalaite, an oxide hydroxide of aluminum, which we have not confirmed due to the limitations of the electron microscopy technique. We will send report to the buyer.
The Bulla or Boulla is a mud volcano on the island of the same name, in the Baku archipelago, a few km SE of the city of Baku. The most intense eruptions occurred in 1857 and 1940, when erupting breccia volumes reached a few million cubic meters. The most interesting mineralization (native metals, akdalaite) is related to the ejection of the 1947 eruption.
Size: 1.8 x 1 mm.
Analyzed specimen with report

RM2452 Siderite
Osor mines, Osor, Girona, Catalunya, SpainSiderite rhombohedral crystals, flattened, bright and defined. They have a honeyed to golden colour, with a second generation of smaller crystals. They are disposed on a matrix. Siderite specimens from this Catalan mine are uncommon.
Size: 7.4 x 6.8 x 4.6 cm.
Main crystal: 0.9 cm.
Col. J. Povill (Olesa de Montserrat).
RM2457 Baryte
Campos de golf area, Sierra Minera de Cartagena-La Unión, Atamaría, Cartagena, Murcia, SpainRich aggregate of tabular baryte crystals, brilliant, defined and between translucent to transparent on the edges. From a classic locality for the Spanish mineralogy.
Size: 6.2 x 4 x 3 cm.
Main crystal: 1 cm.
Found in ca. 1996.
Col. J. Astor (Barcelona).

RM2455 Balangeroite
Poggio San Vittore mine, Balangero, Torino, Piemonte, ItalyReally fine specimen for this rare species. The balangeroite is a magnesium, iron anfd manganese silicate, only found in a few places worldwide. The serpentine Poggio San Vittore quarry, which were the best samples has been found and it is the type locality for the species, is abandoned since 1990. The mineral usually appears included in the serpentine matrix and only few fibers are aerial. In this specimen, fibers are totally aerial and with a good length.
Size: 4.2 x 4 x 3.4 cm.
Main crystal: 3.2 cm.
Found in ca. 1985.
Col. J. Astor (Barcelona).
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