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RM3008   Fehrite and devilline

Les Ferreres mine, Rocabruna, Camprodon, Girona, Catalunya, Spain

Fehrite 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


Price: 70 €Buy
 

RM3006   Silver, var. kongsbergite

Santa Matilde open pit, Grupo minero Berja, Las Herrerías, Sierra Almagrera, Cuevas del Almanzora, Almería, Andalucía, Spain

These 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
 

RM2999   Pyrolusite and manganite

Gremmelsbach, Triberg im Schwarzwald, Freiburg, Baden-Württemberg, Germany

A 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, Germany

A 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


Price: 130 €Buy
 

RM2997   Pyrolusite and manganite

Gremmelsbach, Triberg im Schwarzwald, Freiburg, Baden-Württemberg, Germany

A 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, Germany

A 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, Germany

A 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


 

RM3000   Phosgenite, Anglesite and Galena

Monteponi, Iglesias, Carbonia-Iglesias, Sardegna, Italy

The Monteponi phosgenite specimens are a classic of European and worldwide mineralogy. This specimen shows us two differentiated zones. One with a group of phosgenite crystals in parallel growth accompanied by a well defined prismatic crystal. Translucent and with the classic honey gray tone. They are disposed on a galena matrix with numerous anglesite crystals. This specimen belongs with the label of the René Hubin collection (Belgium).


Size: 7.2 x 5.8 x 4.1 cm.
Main crystal: 1 cm.

Col. René Hubin (Neupré, Belgium).


 

RM3002   Natrolite

Rio Fromm, Alpe di Siusi, Castelrotto, Bolzano, Trentino-Alto Adige, Italy

Rich group of radiated natrolite crystals, transparent to translucent, very bright and disposed on a vacuole of basaltic rock. It is not easy to find specimens with this quality and from this Italian locality. Specimen from the collection of Rolando Gallina.


Size: 8.4 x 7.4 x 7 cm.

Col. Rolando Gallina (Itàlia).
 

RM2994   Twinned dolomite

Azkarate Quarry, Eugi, Esteribar, Nafarroa (Navarra), Spain

Group of twinned rhombohedral dolomite crystals with very well defined faces and edges. They show striated faces, transparence and brilliance. With gray inclusions arranged randomly, not uniform. A classic of Spanish mineralogy.


Size: 7.8 x 5.5 x 5 cm.
Main crystal: 3 x 2.5 cm. macla/twin



 

RM2993   Thomsonite-Ca and Phillipsite

Arensberg, Walsdorf, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany

Aesthetic globular aggregate of thomsonite-Ca, with a slightly bony tone and disposed in a basalt vacuole lined with small phillipsite crystals. Arensberg phillipsite crystals contain both potassium and calcium, and in some crystals calcium is dominant. A very good specimen for this German locality, little represented in collections.


Size: 8.8 x 5.4 x 4.9 cm.
Main crystal: 13 mm. glob.
Found in ±1974.

Classic locality


 

RM2990   Alumohydrocalcite and siderite

Mas Dieu, Mercoirol, Laval-Pradel, Gard, Occitània, France

Globular and radial aggregates of alumohydrocalcite crystals, white to cream in color and with a silky luster. They contrast on the brown siderite. They come from this classic French mine, nowadays partially restored.


Size: 4.4 x 4.1 x 1.4 cm.



 

RM2987   Fehrite and devilline

Les Ferreres mine, Rocabruna, Camprodon, Girona, Catalunya, Spain

Fehrite 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: 2.1 x 1.5 x 1.2 cm.
Found in ±2019.

Analyzed specimen with report


 

RM2986   Anhydrite, pyrite and dolomite

Miniera di Campiano, Montieri, Grosseto, Toscana, Italy

Specimen of anhydrite formed by numerous prismatic to tabular crystals, well defined and interpenetrated. On the back we can see the matrix formed by dolomite and brilliant pyrite crystals. Specimens from this Italian mine, located north of Boccheggiano, were collected at the end of the 20th century. The mine worked from the early 1980s, currently the mine is closed.


Size: 11 x 5.3 x 5 cm.
Main crystal: 1.3 cm.

Price: 110 €Buy
 

RM2983   Baryte and limonite

Els Frares Quarry, Aiguafreda, Vallès Oriental, Catalunya, Spain

Baryte crystals from this quarry are a classic of Catalan mineralogy. They appear in the fissures of the slates, usually covered by iron oxydes. In this specimen we can see various groups of prismatic crystals, brilliant and transparent, rich in faces. Among them, a larger one stands out in which we can see the faces of orthorhombic prisms of various orders truncated by pinacoidal faces. Nowadays it is very difficult to find specimens in this quarry and even less with the quality we offer.


Size: 11.3 x 6.7 x 4 cm.
Main crystal: 14 x 7 mm.
Found in ±1987.

Classic locality
Price: 80 €Buy
 

RM2982   Quartz with kaolinite

Serrabal mine, Vedra, A Coruña, Galícia, Spain

Floating druse of quartz crystals forming pineapple growths, with a good luster and a slightly yellowish hue. On the backside, also crystallized, we can see the typical kaolinite layer of this deposit. It is accompanied by a limonite that was probably pyrite.
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: 11 x 7.8 x 5.9 cm.
Found in 2017.

 

RM2981   Fluorite and quartz

Sant Marçal (Matagalls) mines, Sant Marçal, Massís del Montseny, Viladrau, Girona, Catalunya, Spain

Fluorite specimens from Sant Marçal mines usually appear as aggregates of cubic crystals, defined, sometimes sprinkled or partially covered by quartz crystals. Yellow to greenish tones are the usual ones. Specimens with violet to bluish colors (depending on the type of incident light) are much less frequent and highly appreciated by collectors. These specimens we offer were collected at the beginning of the 70s. Some small nick, very common in these specimens, without affecting the quality. In this specimen we can observe cubic crystals with this bluish to greenish tone, translucent and disposed on a characteristic ochy "pegmatite" matrix. They are partially covered and on with small but brilliant quartz crystals.


Size: 10 x 5.7 x 4.4 cm.
Main crystal: 9 mm. edge.
Found in ±1970.

Fluorescent under long wave UV
Price: 60 €Buy
 

RM2980   Quartz, amethyst var., and fluorite

Sant Marçal (Matagalls) mines, Sant Marçal, Massís del Montseny, Viladrau, Girona, Catalunya, Spain

The Matagalls fluorite mines are located in the Montseny massif. They are well known for fluorite, but also for quartz crystals of the amethyst variety like ones shown in this specimen. Numerous amethyst crystals are disposed on a matrix upholstered by yellowish-green fluorite, partially covered by small very brilliant calcite crystals.


Size: 8.8 x 8.2 x 4 cm.
Found in ±1970.

Fluorescent under long wave UV
 

RM2979   Fluorite and quartz

Sant Marçal (Matagalls) mines, Sant Marçal, Massís del Montseny, Viladrau, Girona, Catalunya, Spain

Fluorite specimens from Sant Marçal mines usually appear as aggregates of cubic crystals, defined, sometimes sprinkled or partially covered by quartz crystals. Yellow to greenish tones are the usual ones. Specimens with violet to bluish or green colors (depending on the type of incident light) are much less frequent and highly appreciated by collectors. These specimens we offer were collected at the beginning of the 70s. In this specimen we can observe cubic crystals with this bluish tone, translucent and disposed on a characteristic ochy "pegmatite" matrix. They are partially covered with small but brilliant quartz crystals.


Size: 6.7 x 6.5 x 3.6 cm.
Main crystal: 1.1 cm.
Found in ±1970.

Fluorescent under long wave UV
Price: 55 €Buy
 

RM2978   Celestine

Langre, Ribamontán al Mar, Cantabria, Spain

These celestite specimens come from a classic locality on the Cantabrian coast such as Langre, together with Laredo. These are idiomorphic crystals formed within a nodule. Very brilliant, defined and transparent, with a delicate bluish color.


Size: 5.2 x 4.2 x 3.8 cm.
Main crystal: 1.3 cm.

Price: 75 €Buy
 

RM2977   Celestine

Langre, Ribamontán al Mar, Cantabria, Spain

These celestite specimens come from a classic locality on the Cantabrian coast such as Langre, together with Laredo. These are idiomorphic crystals formed within a nodule. Brilliant, defined and transparent, with a delicate bluish color.


Size: 4.9 x 3.8 x 3.1 cm.
Main crystal: 9 mm.

Price: 55 €Buy
 

RM2976   Magnesite

Impensada Mine (Magnesitas de Rubián), Pacios, O Incio, Lugo, Galicia, Spain

The Rubián Magnesite mines are a classic of Galician mineralogy. Currently these mines are active exploiting one of the largest deposits of magnesite in Spain. This specimen, which dates from the late 1970s, shows us a rich aggregate of lenticular crystals of this magnesium carbonate, brilliant, translucent, and with a very aesthetic orange color. It belongs from the Joan Astor collection, with his handwritten and another typed labels.


Size: 5 x 4.8 x 2.9 cm.
Found in ±1977.

Classic locality


 

RM2972   Fluorite

Berta quarry, El Papiol - Sant Cugat del Vallès, Barcelona, Catalunya, Spain

This specimen of fluorite from the Berta quarry shows us groups of crystals but also isolated crystals. The matrix is "old" red granodiorite and is lined by tiny, almost colorless fluorite octahedrons. If there is something to be highlighted about this piece, it is that the octahedral fluorite crystals show the faces of the rhombododecahedron, the cube and the tetrakishexahedron at the vertices.


Size: 10.4 x 3.4 x 3.3 cm.
Main crystal: 8 mm.

Fluorescent under long wave UV
 

RM2971   Fluorite and calcite

Berta quarry, El Papiol - Sant Cugat del Vallès, Barcelona, Catalunya, Spain

Group of octahedral fluorite crystals, transparent and showing an intense green color. They are accompanied by small calcite crystals, very faceted, transparent and brilliant. Both fluorite and calcite fluoresce under long-wave ultraviolet light. This type of gray granite matrix is classic for the most modern specimens and comes from the lower levels of the Berta quarry.


Size: 6.3 x 4.5 x 3.4 cm.
Main crystal: 13 mm edge/arista.

Fluorescent under long wave UV
 

RM2970   Fluorite, quartz and pyrite

Berta quarry, El Papiol - Sant Cugat del Vallès, Barcelona, Catalunya, Spain

Group of octahedral fluorite crystals, translucent to transparent. They show defined faces and edges and an intense green color. They are accompanied by small quartz and pyrite crystals peppering some of the octahedron faces. This type of gray granite matrix is classic for the most modern specimens and comes from the lower levels of the Berta quarry.


Size: 5.7 x 4.6 x 2.1 cm.
Main crystal: 12 mm edge.

Fluorescent under long wave UV
Price: 65 €Buy
 
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