Rosell Minerales
RM3050 Baryte, fluorite and pyrolusite
Clara Mine, Oberwolfach, Ortenaukreis, Freiburg, Baden-Württemberg, GermanyGroup of barite crystals, of good size, well defined and richly faceted, transparent to translucent and with a honeyed hue. They are disposed in a very aerial way on a matrix with fluorite and quartz.
Size: 7.6 x 4 x 3.5 cm.
Main crystal: 2.3 cm.
Found in ±1990.

RM3049 Baryte, Pyrolusite and quartz
Clara Mine, Oberwolfach, Ortenaukreis, Freiburg, Baden-Württemberg, GermanyGroup of very good size baryte crystals, well-defined faces and edges, transparent to translucent, with inclusions of pyrolusite and quartz.
Size: 5 x 3.8 x 2.8 cm.
Main crystal: 3.6 cm.
Found in ±1990.
Classic locality
RM3043 Azurite, Malachite and fluorite
Clara Mine, Oberwolfach, Ortenaukreis, Freiburg, Baden-Württemberg, GermanyAn azurite specimen from this classic German locality, to be enjoyed under magnification. These are aggregates of azurite crystals, some isolated, richly faceted, with transparence, brilliance and the characteristic colour. With globular aggregates of malachite. Very aesthetic.
Size: 4.8 x 4 x 3.8 cm.
Main crystal: 4 mm. agreg.
Classic locality
RM3042 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: 6.2 x 4 x 3 cm.
Analyzed specimen with report

RM3041 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: 6.1 x 4.8 x 2.1 cm.
Found in ±1995.
Analyzed specimen with report

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
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

RM2937 Allargentum, safflorite and calcite
Wenzel Mine, Oberwolfach, Ortenaukreis, Freiburg, Baden-Württemberg, GermanyThese German mines have produced some of the best specimens of silver and allargentum from European mines. A good-sized piece, we can see aggregates of this silver and antimony species showing rounded forms. Disposed very aerial on a calcite matrix. With good luster and bronze reflections. With safflorite. It belongs from a Spanish collection, and we will send the handwritten label to the buyer.
Size: 6.9 x 5.3 x 2.3 cm.
Col. M. Marí - A. García (Castelló)
RM2448 Sellaite
Clara Mine, Oberwolfach, Ortenaukreis, Freiburg, Baden-Württemberg, GermanyFrom 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
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