Rosell Minerales
RM3040 Malachite
Mindingi Mine, Kambove, Haut-Katanga, Congo, Democratic Republic ofAesthetic stalactitic aggregates of malachite, with brilliance and uniform green color. Very aesthetic.
Size: 12 x 11 x 8.5 cm.
RM3038 Malachite
Mindingi Mine, Kambove, Haut-Katanga, Congo, Democratic Republic ofMalachite specimens from this Upper Katanga mine are notable for radial aggregates of fine crystals that, taken together, have a velvety appearance and excellent brilliance. Intense green colour, good size and fine aesthetics.
Size: 11 x 8.7 x 3.3 cm.
RM3020 Malachite
Mindingi Mine, Kambove, Haut-Katanga, Congo, Democratic Republic ofMalachite specimens from this Upper Katanga mine are notable for radial aggregates of fine crystals that, taken together, have a velvety appearance and excellent brilliance. Intense green colour, good size and fine aesthetics.
Size: 10.4 x 8.2 x 5 cm.
RM3019 Malachite
Mindingi Mine, Kambove, Haut-Katanga, Congo, Democratic Republic ofMalachite specimens from this Upper Katanga mine are notable for radial aggregates of fine crystals that, taken together, have a velvety appearance and excellent brilliance. Intense green colour, good size and fine aesthetics.
Size: 7.9 x 7.6 x 3.8 cm.
RM3018 Malachite
Mindingi Mine, Kambove, Haut-Katanga, Congo, Democratic Republic ofMalachite specimens from this Upper Katanga mine are notable for radial aggregates of fine crystals that, taken together, have a velvety appearance and excellent brilliance. Intense green colour, good size and fine aesthetics.
Size: 9.1 x 8.6 x 4.2 cm.
RM3017 Agate (var: Agatized coral)
Ballast Point, Tampa Bay, Tampa, Hillsborough Co., Florida, United States of AmericaAgatized coral with marked bands. In a very visible coral matrix. Filled inside with botryoidal and banded chalcedony. The sparkly, translucent botryoids and banding have a pleasing variety of honey-brown and creamy colors. Very aesthetic and unusual in the marked. Fluoresces in a light-blue color under a long wave fluorescent light. From Joan Astor (Barcelona) collection.
Size: 6.4 x 6.3 x 2.3 cm.
Found in ±1988.
Fluorescent under long wave UV
RM3015 Epidote and Stilbite
Diakon, Bafoulabé Cercle, Kayes Region, MaliThis specimen from Mali shows us three doubly terminated epidote crystals, with well defined faces and edges and an intense green color. It is accompanied by sheaf aggregates of stilbite, a presentation different from the usual one for the deposit. Very aerial and aesthetic.
Size: 7.5 x 4.4 x 3.5 cm.
Main crystal: 4.8 x 1.5 cm.
RM3014 Baryte
Clara Mine, Oberwolfach, Ortenaukreis, Freiburg, Baden-Württemberg, GermanyGrube Clara baryte specimens are a classic for the species in Europe. In this specimen we can enjoy numerous crystal aggregates, some isolated, presenting a rich complexity of facets. They are mainly formed by faces of orthorhombic prisms and curiously some are translucent while others are totally transparent. The brilliance, transparence and contrast on the matrix add aesthetics to this specimen.
Size: 7 x 4.4 x 2.5 cm.
Main crystal: 7 mm.
Found in ±2020.
Classic locality
RM3013 Kaolinite pseudomrph after orthoclase
St. Austell, Cornwall, United KingdomAn old-time pseudomorph from the St. Austell District of Cornwall. A very sharp, doubly terminated, Carlsbad-twinned orthoclase crystal has been pseudomorphed by kaolinite. Great old classic material from Cornwall. The piece, adquired to Bailey, is from the collection of Joan Astor and comes with his label.
Size: 6.2 x 3.3 x 1.5 cm.
Found in ±1980.
Col. Joan Astor (Barcelona).

RM3012 Kaersutite
Lukov (Lukow), Teplice, Ústí nad Labem, Czech RepublicThese specimens from this Czech locality were initially cataloged as "hornblende", later studies indicated that it could be kaersutite, a member of the amphibole group. This specimen has a brownish tone that makes us think it could be a pseudomorphosis. It shows very well defined faces that can allow crystallography lovers to measure angles. An old sample.
Size: 3.3 x 2.3 x 1.8 cm.
Classic locality
RM3011 Wulfenite and baryte
Mine des Dalles, Mibladen, Khénifra, Meknès-Tafilalet, MoroccoWulfenite specimens like the one we present are very unusual for this locality and appeared many years ago. On a matrix with dolomite, galena and baryte there are numerous crystals of intense orange color, with dipyramid faces truncated by the pinacoids. Some appear as isolated crystals and mostly in parallel growth. This specimen is from the Peter Seroka collection and previously belonged to the Marcus Lueg collection.
Size: 7.9 x 7.2 x 4.8 cm.
Main crystal: 1.1 cm.
Found in ±2008.
Col. M. Lueg (2008); Col. P. Seroka (#22)
Classic locality

RM3010 Spinel and forsterite
San Vito Quarry, Complesso Somma-Vesuvio, San Vito, Ercolano, Napoli, ItalyVarious groups of octahedral spinel crystals, very well defined, brilliant and with an intense black color. They are disposed on a matrix of volcanic rock with forsterite. This is a very representative specimen for the species and for this classic Italian locality. It belongs from various collections. Good size and quality for the species.
Size: 6.8 x 5.5 x 4 cm.
Main crystal: 3 mm.
Excol. Panunzi (Itàlia); Excol. Imma Punzo; Col. E. Laskowski (USA)
Classic locality

RM3009 Pericline (var. Albite), Ilmenite, clinochlore and quartz
Auernig, Mallnitz, Spittal an der Drau, Carinthia, AustriaVery remarkable specimen formed by several aggregates of pericline crystals, a variety of albite, well faceted, defined and with striated faces. It is worth highlighting numerous very brilliant ilmenite crystals in this specimen, with well-defined hexagonal shape. Ilmenite is an unusual species in this locality in the words of the owner of the original collection, Rudolf Hasler (Bleiberg-Kreuth). They are accompanied by groups of clinochlore and quartz crystals. It belongs from the collection of Peter Seroka (Girona), with label.
Size: 10.1 x 9 x 6.6 cm.
Main crystal: 1.9 cm.
Found in ±2011.
Col. R. Hasler; Col. P. Seroka (#694, 2013)

RM3008 Fehrite and devilline
Les Ferreres mine, Rocabruna, Camprodon, Girona, Catalunya, SpainFehrite is a recent new species found in Almeria (Spain). Some years ago (2012) we identified this species in the Les Ferreres mine (Camprodon) but unfortunatelly we didn't have enough sample to finish detrmination and structural studies. Recently we found some more samples and the characterization was carried out based on the results obtained from the application of various analytical techniques: SEM-EDS, Raman and X-ray diffraction. Les Ferreres mine is the second locality worldwide for the species. We will send all reports to the buyer.
In this Catalan mine, fehrite appears as elongated elongated tabular to fibrous crystals, with a delicate bluish-green tone, and fibrous terminations. Usually, it is accompanied by devilline (blue) and brochantite (green). It is the magnesium analogue of ktenasite.
Size: 2.3 x 1.1 x 1 cm.
Found in ±2019.
Analyzed specimen with report

RM3006 Silver, var. kongsbergite
Santa Matilde open pit, Grupo minero Berja, Las Herrerías, Sierra Almagrera, Cuevas del Almanzora, Almería, Andalucía, SpainThese specimens are a classic from Las Herrerías mine, and they appeared many years ago. In this piece we can observe a cavity in the rock partially filled with silver foliaceous aggregates, kongsbergite variety, very brilliant and with a silver color with bronze reflections and bluish iridescence, characteristic for the species. This aesthetic and historical specimen has been analyzed and the result will be sent to the buyer. It belongs from the Rolando Gallina mineral collection (Italy).
Size: 5.1 x 5 x 3.7 cm.
Col. Rolando Gallina (Italia).
Classic locality
RM3007 Malachite
Kakanda deposit, Lubudi, Lualaba, Congo, Democratic Republic ofThese specimens of malachite present mamelonar, botryoidal to stalactic growths, with a very intense characteristic green color and silky luster. If they are observed under magnification, they show us that the sparkly green is produced by small malachite crystals that cover the surface. The photograph does not reflect all the splendor and brilliance of the piece. They are disposed on a fibrous malachite matrix. Very aesthetic.
Size: 11 x 8.5 x 4.2 cm.
RM3005 Malachite
Kakanda deposit, Lubudi, Lualaba, Congo, Democratic Republic ofThese specimens of malachite present mamelonar, botryoidal to stalactic growths, with a very intense characteristic green color and silky luster. If they are observed under magnification, they show us that the sparkly green is produced by small malachite crystals that cover the surface. The photograph does not reflect all the splendor and brilliance of the piece. They are disposed on a fibrous malachite matrix. Very aesthetic.
Size: 6.2 x 6.6 x 3.5 cm.
RM3004 Malachite
Kakanda deposit, Lubudi, Lualaba, Congo, Democratic Republic ofThese specimens of malachite present mamelonar, botryoidal to stalactic growths, with a very intense characteristic green color and silky luster. If they are observed under magnification, they show us that the sparkly green is produced by small malachite crystals that cover the surface. The photograph does not reflect all the splendor and brilliance of the piece. They are disposed on a fibrous malachite matrix. Very aesthetic.
Size: 5.9 x 5.5 x 3.6 cm.
RM3003 Malachite
Kakanda deposit, Lubudi, Lualaba, Congo, Democratic Republic ofThese specimens of malachite present mamelonar, botryoidal to stalactic growths, with a very intense characteristic green color and silky luster. If they are observed under magnification, they show us that the sparkly green is produced by small malachite crystals that cover the surface. The photograph does not reflect all the splendor and brilliance of the piece. They are disposed on a fibrous malachite matrix. Very aesthetic.
Size: 9.2 x 6.5 x 6.2 cm.
RM2999 Pyrolusite and manganite
Gremmelsbach, Triberg im Schwarzwald, Freiburg, Baden-Württemberg, GermanyA novelty from Sainte-Marie-aux-Mines 2022. These specimens come from a recent find in this mining area of the Black Forest and are reminiscent of those found decades ago in this area. They show radial aggregates of extremely brilliant pyrolusite crystals that partially replace manganite. By X-ray diffraction we have been determined the presence of both species, even with a certain predominance of manganite. They usually appear on a matrix of pink granite or as groups of large crystals in parallel growth. In the specimens we can observe the inclined flattened terminal faces. They are highly aesthetic pieces those will become part of the best specimens of these species for European mineralogy. We will send the XRD to the buyer.
Size: 8.8 x 7.4 x 5.2 cm.
Main crystal: 4.2 cm.
Found in 2021.
Analyzed specimen with report

RM2998 Pyrolusite and manganite
Gremmelsbach, Triberg im Schwarzwald, Freiburg, Baden-Württemberg, GermanyA novelty from Sainte-Marie-aux-Mines 2022. These specimens come from a recent find in this mining area of the Black Forest and are reminiscent of those found decades ago in this area. They show radial aggregates of extremely brilliant pyrolusite crystals that partially replace manganite. By X-ray diffraction we have been determined the presence of both species, even with a certain predominance of manganite. They usually appear on a matrix of pink granite or as groups of large crystals in parallel growth. In the specimens we can observe the inclined flattened terminal faces. They are highly aesthetic pieces those will become part of the best specimens of these species for European mineralogy. We will send the XRD to the buyer.
Size: 6.7 x 5.5 x 4.1 cm.
Found in 2021.
Analyzed specimen with report

RM2997 Pyrolusite and manganite
Gremmelsbach, Triberg im Schwarzwald, Freiburg, Baden-Württemberg, GermanyA novelty from Sainte-Marie-aux-Mines 2022. These specimens come from a recent find in this mining area of the Black Forest and are reminiscent of those found decades ago in this area. They show radial aggregates of extremely brilliant pyrolusite crystals that partially replace manganite. By X-ray diffraction we have been determined the presence of both species, even with a certain predominance of manganite. They usually appear on a matrix of pink granite or as groups of large crystals in parallel growth. In the specimens we can observe the inclined flattened terminal faces. They are highly aesthetic pieces those will become part of the best specimens of these species for European mineralogy. We will send the XRD to the buyer.
Size: 9 x 5.8 x 3.8 cm.
Main crystal: 3 cm. rad.
Found in 2021.
Analyzed specimen with report

RM2996 Pyrolusite and manganite
Gremmelsbach, Triberg im Schwarzwald, Freiburg, Baden-Württemberg, GermanyA novelty from Sainte-Marie-aux-Mines 2022. These specimens come from a recent find in this mining area of the Black Forest and are reminiscent of those found decades ago in this area. They show radial aggregates of extremely brilliant pyrolusite crystals that partially replace manganite. By X-ray diffraction we have been determined the presence of both species, even with a certain predominance of manganite. They usually appear on a matrix of pink granite or as groups of large crystals in parallel growth. In the specimens we can observe the inclined flattened terminal faces. They are highly aesthetic pieces those will become part of the best specimens of these species for European mineralogy. We will send the XRD to the buyer.
Size: 7.4 x 5.4 x 3.2 cm.
Main crystal: 4.7 cm.
Found in 2021.
Analyzed specimen with report

RM2995 Pyrolusite and manganite
Gremmelsbach, Triberg im Schwarzwald, Freiburg, Baden-Württemberg, GermanyA novelty from Sainte-Marie-aux-Mines 2022. These specimens come from a recent find in this mining area of the Black Forest and are reminiscent of those found decades ago in this area. They show radial aggregates of extremely brilliant pyrolusite crystals that partially replace manganite. By X-ray diffraction we have been determined the presence of both species, even with a certain predominance of manganite. They usually appear on a matrix of pink granite or as groups of large crystals in parallel growth. In the specimens we can observe the inclined flattened terminal faces. They are highly aesthetic pieces those will become part of the best specimens of these species for European mineralogy. We will send the XRD to the buyer.
Size: 7.2 x 7 x 4.1 cm.
Main crystal: 2.7 cm.
Found in 2021.
Analyzed specimen with report

RM3001 Hydroxilherderite with albite
Valle de Piauí, Taquaral, Itinga, Minas Gerais, BrazilIn this specimen we can observe numerous prismatic crystals of hydroxylherderite, an unusual calcium and beryllium hydroxylphosphate, with a very uniform beige color, very well defined faces and edges and with twinning. They are disposed on a matrix formed by albite crystals. The specimen is from the Piauí Valley, an area very rich in lithium-bearing pegmatites.
Size: 6.4 x 4.7 x 3.9 cm.
Main crystal: 1.4 cm.
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