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RM1090   Fluorite with quartz

La Viesca mine, Huergo, Siero, Asturias, Spain

Group of fluorite crystals, transparent, bright, with very sharp faces and edges and showing forms of the cube. One of the crystals has a very interesting asymmetrical face. Grayish-blue color, depending on the incident light. On an matrix covered by hyaline quartz crystals.


Size: 7.7 x 5.0 x 3.2 cm.
Main crystal: 14 x 14 mm.
Found in 2014.

 

RM1543   Fluorite and quartz

La Viesca mine, La Collada area, Huergo, Siero, Asturias, Spain

Group of fluorite crystals, with cubic forms truncated in the edges by the dodecahedron. Brilliant to dull, transparent to translucent, with color zonation between colorless to violet depending on the type of incident light. They are disposed on a matrix with quartz crystals.


Size: 9.7 x 8.5 x 4.0 cm.
Main crystal: 14 x 13 mm.

Price: 45 €Buy
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RM468   Calcite with dolomite

La Cuerre mine (La Florida mines), Rionansa (Herrerías), Sierra de Arnero, Asturias, Spain

Calcite specimens from la Florida mines are known and valued worldwide. In this sample we have a complex twinned escalenohedron, "doubly terminated", with combination with the rhombohedron. Transparence is excellent, with defined striated faces and delicate edges. It has a delicate yellow to orange tone. In this specimen we can see, in the rear, the contact with the dolomite matrix where crystal had growth and an exfoliation, that does not affect the aesthetics of the sample.
These
specimens appeared accompanied by pink dolomite, at level 6 of this mine. On one side there is a hoppered cavity in which it was disposed another group of crystals. A huge size and excellent specimen from this classic Spanish locality.


Size: 8,3 x 5,8 x 4,4 cm.

 

RM1829   Graphite

Tres Hermanos mine, Pilotuerto, Tineo, Asturias, Spain

Nowadays, graphite specimens from this classic Asturian locality are very difficult to be found. These specimens show contiguous columns, with greasy luster and defined hexagonal forms. The crystal habit of natural graphite in most cases is determined by its highly anisotropic, layered structure. However, anomalous habits of graphite, determined not only by its structure, but also by the peculiarities of the growth environment, are frequently encountered.


Size: 6.0 x 3.2 x 2.9 cm.
Found in ±1985

 

RM1827   Graphite

Tres Hermanos mine, Pilotuerto, Tineo, Asturias, Spain

Nowadays, graphite specimens from this classic Asturian locality are very difficult to be found. These specimens show contiguous columns, with greasy luster and defined hexagonal forms. The crystal habit of natural graphite in most cases is determined by its highly anisotropic, layered structure. However, anomalous habits of graphite,determined not only by its structure, but also by the peculiarities of the growth environment, are frequently encountered.


Size: 10.5 x 3.6 x 3 cm.
Found in ±1985

 

RM1952   Graphite

Tres Hermanos mine, Pilotuerto, Tineo, Asturias, Spain

Nowadays, graphite specimens from this classic Asturian locality are very difficult to be found. These specimens show contiguous columns, with greasy luster and defined hexagonal forms. The crystal habit of natural graphite in most cases is determined by its highly anisotropic, layered structure. However, anomalous habits of graphite,determined not only by its structure, but also by the peculiarities of the growth environment, are frequently encountered, and optimization of the space available when solidifying forming columns.


Size: 2.8 x 2.7 x 1.8 cm.
Found in ±1985

 

RM1951   Graphite

Tres Hermanos mine, Pilotuerto, Tineo, Asturias, Spain

Nowadays, graphite specimens from this classic Asturian locality are very difficult to be found. These specimens show contiguous columns, with greasy luster and defined hexagonal forms. The crystal habit of natural graphite in most cases is determined by its highly anisotropic, layered structure. However, anomalous habits of graphite,determined not only by its structure, but also by the peculiarities of the growth environment, are frequently encountered, and optimization of the space available when solidifying forming columns.


Size: 7.4 x 3.2 x 2.3 cm.
Found in ±1985.

 

RM1950   Graphite

Tres Hermanos mine, Pilotuerto, Tineo, Asturias, Spain

Nowadays, graphite specimens from this classic Asturian locality are very difficult to be found. These specimens show contiguous columns, with greasy luster and defined hexagonal forms. The crystal habit of natural graphite in most cases is determined by its highly anisotropic, layered structure. However, anomalous habits of graphite,determined not only by its structure, but also by the peculiarities of the growth environment, are frequently encountered, and optimization of the space available when solidifying forming columns.


Size: 6.7 x 4.4 x 3.5 cm.
Found in ±1985.

 

RM1949   Graphite

Tres Hermanos mine, Pilotuerto, Tineo, Asturias, Spain

Nowadays, graphite specimens from this classic Asturian locality are very difficult to be found. These specimens show contiguous columns, with greasy luster and defined hexagonal forms. The crystal habit of natural graphite in most cases is determined by its highly anisotropic, layered structure. However, anomalous habits of graphite,determined not only by its structure, but also by the peculiarities of the growth environment, are frequently encountered, and optimization of the space available when solidifying forming columns.


Size: 6.5 x 3.0 x 3.0 cm.
Found in ±1985.

 

RM2196   Pyromorphite with coronadite and quartz

Bedures Hill, Meredo, Vegadeo, Asturias, Spain

As M. Calvo indicates in his work (Minas y mInerales de España), in the area of Bedures hill (or Vidures), in the municipality of Vegadeo, there are several mining works, some of them very ancient, in which various lead mineral species have been described and among them, pyromorphite stands out. This piece we propose, found by chance in a mineral show far from the mine that saw it born, shows a matrix of milky quartz, with iron oxides and, on it, a black layer of coronadite. We can observe also several crystals of green pyromorphite dot its surface. Some form divergent aggregates, others isolated, but with an intense green color, with zoning in some of them. They show hexagonal prisms truncated by pinacoidal faces and parallel growth aggregates. A high quality and very rare specimen for the locality.


Size: 12.0 x 9.7 x 6.6 cm.
Main crystal: 3 mm.

 

RM2197   Pyromorphite with coronadite and quartz

Bedures Hill, Meredo, Vegadeo, Asturias, Spain

As M. Calvo indicates in his work (Minas y mInerales de España), in the area of Bedures hill (or Vidures), in the municipality of Vegadeo, there are several mining works, some of them very ancient, in which various lead mineral species have been described and among them, pyromorphite stands out. This piece we propose, found by chance in a mineral show far from the mine that saw it born, shows a matrix of milky quartz, with iron oxides and a black layer of coronadite in one side. We can observe also several crystals of green pyromorphite on the surface. Some form divergent aggregates, others isolated, but with an intense green color, with zoning in some of them. They show hexagonal prisms truncated by pinacoidal faces and parallel growth aggregates. A very rare specimen for this Spanish locality.


Size: 5.5 x 4.8 x 4 cm.

Price: 90 €Buy
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RM662   Calcite

La Verde Quarry, Alto de Verdenueva, Camargo, Cantabria, Spain

A very aesthetic group of calcite crystals showing rhombohedral forms, elongated along the main axis. Good definition, yellow color, with greater intensity at the acute forms, due to the iron oxide coating. From a Spanish classic locality.


Size: 10,5 x 5,0 x 5,0 cm.
Main crystal: 20 x 15 mm.
Found in 2008.

Fluorescent under long wave UV
 

RM663   Calcite

La Verde Quarry, Alto de Verdenueva, Camargo, Cantabria, Spain

A very aesthetic and huge size group of calcite crystals showing rhombohedral forms, elongated along the main axis. Good definition, yellow color, due to the iron oxide coating. From a Spanish classic locality.


Size: 10,0 x 9,7 x 6,0 cm.
Main crystal: 20 x 18 mm.
Found in 2008.

Fluorescent under long wave UV
 

RM678   Calcite with Dolomite

La Verde quarry, Alto de Verdenueva, Camargo, Cantabria, Spain

A very curious specimen of calcite with deformed and curved escalenohedron and rhombohedron faces. With some brilliance, yellowish color and translucent. Very aerial disposed on a matrix of dolomite peppered with pyrite.


Size: 7,6 x 5,0 x 3,0 cm.
Main crystal: 16 x 16 mm.
Found in 2008.

Precio reducido-Reduced price 40€
Fluorescent under long wave UV
 

RM548   Calcite with Dolomite

Reocín mine, Pozo Santa Amelia, Reocín, Cantabria, Spain

On a matrix covered by small dolomite and some calcite crystals is disposed in a very aerial shape a huge size calcite crystal. It shows well defined faces and edges and the rotation twin. It is not a doubly terminated crystal, it is a 180º twinned crystals. Complete and no damage. With a tastefull silky luster and translucent. A delicate yellowish tone increases its aesthetics on the white matrix. It is not common see these specimens from this classic Spanish mine.


Size: 7,8 x 4,9 x 3,6 cm.
Main crystal: 6,0 x 2,7 cm.
Found in 09/2001.

 

RM636   Galena with marcasite, sphalerite and dolomite

Reocín mine, Reocín, Cantabria, Spain

Group of octahedral crystals of galena, well defined, some vertices truncated by the cube. They are disposed on a brilliant matrix covered by twinned marcasite, small rhombohedral crystals of dolomite and sphalerite with a honey color and transparence.
A sample from a classic Spanish locality. Old specimen, so the stability can be ensured.


Size: 5,7 x 4,0 x 3,5 cm.
Main crystal: 8 x 7 mm.
Found in ca. 2001

 

RM1966   Marcassite

Reocín mine, Reocín, Cantabria, Spain

Marcassite specimens from Reocín mine are a classic of the Spanish mineralogy. This piece, of very good size (16 cm/ 6.3 in), is a worthy representative of this species. It presents numerous well-defined crystals, most of them showing the "cock's comb" twinned habit. The brightness is very remarkable. The specimen is more than 20 years old and does not present any alteration, favored by the carbonate matrix. A definitive piece for fine displays.


Size: 16 x 10 x 7.5 cm.
Main crystal: 19 mm.
Found in ±1990's

Classic locality
 

RM1419   Marcasite twinned

Reocín mine, Reocín, Cantabria, Spain

A very rich druse of marcasite crystals those clearly show the cockscomb twin. Brilliant, defined and very aesthetic. A Spanish classic.


Size: 9.5 x 7.0 x 2.2 cm.
Main crystal: 15 x 7 mm.

 

RM1813   Sphalerite

Las Manforas Mine (Áliva), Camaleño, Cantabria, Spain

Group of sphalerite crystals with very marked parallel and polycrystalline growths, with the predominant forms of the tetrahedron, slightly curved in faces and edges, transparent to translucent and brilliant. Toasted honey color. With the light on the backside it lights up in intense orange (see photo).


Found in 1980's.

Col. J.M. Manchión (Barcelona). No.77, 03/1984.


 

RM2008   Sphalerite

Las Mánforas Mine (Áliva), Camaleño, Cantabria, Spain

Fragment of a sphalerite crystal, with complex faces and intense color when the light passes through it. Back side is exfoliated. From this classic locality.


Size: 5 x 3.8 x 1.5 cm.

 

RM2007   Sphalerite

Las Manforas Mine (Áliva), Camaleño, Cantabria, Spain

Aggregate of sphalerite crystals, with complex faces and intense color when the light passes through it. Back side is exfoliated. From this classic locality.


Size: 5 x 4 x 2.8 cm.

Price: 55 €Buy
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RM2024   Sphalerite

Las Manforas Mine (Áliva), Camaleño, Cantabria, Spain

Aggregate of sphalerite crystals, with complex faces and intense color when the light passes through it. Back side is recrystalized. From this classic Spanish locality.


Size: 5.5 x 3.8 x 3.5 cm.

 

RM533   Sphalerite with dolomite

Las Manforas Mine (Áliva), Camaleño, Cantabria, Spain

Curious aggregate of sphalerite crystals formed by several crystals of this sulfur, good brilliance, with sharp faces and edges and some transparence. Very aesthetically disposed on a matrix of white rhombohedral dolomite crystals. From a former German collection. Different than usual.


Size: 10,5 x 9, 8 x 4,0 cm.
Main crystal: 9 x 2 cm. (aggr.)

German col. / Núm. de colección 585.


 

RM1499   Spahlerite with dolomite

Las Manforas Mine (Áliva), Camaleño, Cantabria, Spain

On a white matrix formed by several white dolomite crystals, sharp and with curved faces and edges, we can enjoy a crystal of sphalerite very brilliant, with transparence and a very uniform toasted honey color. Very aesthetic specimen. From a former German Col. Nr.812.

 


Size: 10.0 x 6.5 x 4.2 cm.
Main crystal: 8 x 5 mm.
Found in 1990s

 

RM1933   Sphalerite with dolomite

Las Manforas Mine (Áliva), Camaleño, Cantabria, Spain

Specimen with many years, from the Daunis collection (Barcelona), with the handwritten label. There are several groups of sphalerite crystals, brilliant, translucent with an intense orange color when the light passes through them. They are disposed on a matrix with dolomite crystals. The sample has not been treated, so it presents some areas with small scratches, typical of the time. A great sample from this classic Spanish mine.


Size: 13 x 10 x 5.5 cm.
Main crystal: 28 x 28 mm aggreg.
Found in ±1980.

Col. L. Daunis (Barcelona).
Classic locality


 
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