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RM2441   Tetrahedrite-(Fe) with digenite, malachite and azurite

El Coriellu mine, S. Cosme de Llerandi, Parres, Asturias, Spain

Tetrahedrite crystals from this Asturian mine are well known and prized by Spanish collectors. In this sample we have tetrahedral crystals, one of them predominant, in which the tris-tetrahedron shapes seem to point. Good size and partially covered by malachite. X ray diffraction analysis (we will send to the buyer) has shown the presence of digenite associated with the alteration of the tetrahedrite. A classic.


Size: 3.1 x 2.7 x 2.5 cm.
Main crystal: 1 cm.

Analyzed specimen with report
Price: 40 €Buy
 

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
 

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.

 

RM2127   Smithsonite

Argayón mine, Robriguero, Peñamellera Baja, Asturias, Spain

Stalactitic to botryoidal aggregates of smithsonite of yellowish tone, partially covered by a second generation of the same species, colorless to white. This mine is located in the Magdalena concession, near Robriguero, with gallery and open pit works. The mine was worked until 1924 to obtain calamine and some galena. Nowadays it is very difficult to find samples.


Size: 6.2 x 6 x 5.2 cm.

 

RM2081   Fluorite and Baryte

Berbes, Ribadesella, Asturias, Spain

Rich group of sharp fluorite crystals, cubic, with polysynthetic growths on the faces. The colour between violet to bluish-grayish, unusual in this mine. Translucent, allowing to see the color zoning. Good size.


Size: 8 x 7.5 x 4 cm.
Main crystal: 22 mm.

Col. A. Arguijo (L'Hospitalet de Llobregat).
Price: 75 €Buy
 

RM2070   Fluorite with baryte and quartz

Berbes, Ribadesella, Asturias, Spain

An esthetic specimen, cubic fluorite crystalsfluorite, with beveled edges, of blue to purple tone according to the incident light. They present some nips when extracted. Disposed on a matrix of baryte crystals covered by small brilliant quartz crystals.


Size: 7.6 x 5 x 3.5 cm.
Main crystal: 20 x 19 mm / 18 x 15 mm.

 

RM2071   Azurite

El Coriellu mine, S. Cosme de Llerandi, Parres, Asturias, Spain

Very rich specimen formed by several rosettes of tabular to lenticular azurite crystals, intense color and contrasting on the matrix, with quartz. Its origin is due to the alteration of the chalcopyrite and are disposed on a silicified limestone matrix. Very good piece for the locality.


Size: 8 x 5.4 x 4.4 cm.

Col. A. Arguijo (L'Hospitalet de Llobregat)


Price: 60 €Reserved
 

RM2055   Fluorite

Berbes, Ribadesella, Asturias, Spain

Group of fluorite crystals showing sharp edges and cube faces with polysynthetic growths. Good color, intense between purple to violet, depending on the incident light and with geometric colour zoning.


Size: 7.5 x 3.7 x 4.5 cm.
Main crystal: 3.7 cm.
Found in ±1980

Col. A. Arguijo (L'Hospitalet de Llobregat)
 

RM2052   Fluorite and quartz

Berbes, Ribadesella, Asturias, Spain

Group of fluorite crystals showing sharp edges and cube faces with polysynthetic growths. Good color, intense between purple to violet, depending on the incident light and with geometric colour zoning.


Size: 6.2 x 6 x 4.2 cm.
Main crystal: 1.5 cm.

Col. A. Arguijo (L'Hospitalet de Llobregat)
Price: 55 €Reserved
 

RM2014   Fluorite with baryte and quartz

Berbes, Ribadesella, Asturias, Spain

Group of fluorite crystals, cubic shape, brilliance, transparence and violet colour with geometric zoning. Some of them presents minor nicks, without affecting the whole. They are accompanied by barite crystals partially covered by tiny, shiny quartz crystals.


Size: 8.6 x 8.4 x 5 cm.
Main crystal: 2 cm.

 

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.

 

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.

 

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.

 

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

 

RM1942   Tetrahedrite

El Coriellu mine, S. Cosme de Llerandi, Parres, Asturias, Spain

Tetrahedrite crystals of this Asturian mine are well known and appreciated by Spanish mineral collectors. In this specimen we have several tetrahedral crystals, also tristetrahedron shape could be appreciated. Good size and partially coated by malachite. A Spanish classic.


Size: 7.2 x 6.0 x 5.4 cm.
Main crystal: 13 mm edge/arista

 

RM1935   Fluorite with quartz

Berbes, Ribadesella, Asturias, Spain

Group of cubic crystals of fluorite, with transparency, color between purple to violet, with polysynthetic growths on the faces, very defined. A Spanish classic.


Size: 12.5 x 8.5 x 5.5 cm.
Main crystal: 25 x 22 mm.

 

RM1932   Fluorite with baryte

Moscona mine, Villabona area, Solís, Corvera de Asturias, Asturias, Spain

Historically the most representative fluorite specimens from mina Moscona are yellow, recently some of violet tones have been collected. This ancient specimen is one of the few that appeared in the mine with this pink to purple color, with zoning. It is a floater, formed by growths of cubic crystals with faces with polysynthetic growths, very brilliant and translucent. They are partially covered with sharp tabular barite crystals, between transparent to opaque on the outer edges. No damage, good size and fluorescent (UV-LW). A very unusual piece for this classic Spanish mine, from a former German collection.


Size: 16 x 14 x 6.5 cm.

Fluorescent under long wave UV
 

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

 

RM1757   Calcite

Valnegro quarry, Filón Obdulia, Duyos, Caravia, Asturias, Spain

Group of calcite crystals, defined, transparent and brilliant, with a developed prism and negative rhombohedron top terminal faces. On a matrix of barite and calcite. They were collected in a  from open-air mining works in the area of Duyos. Nowadays, these samples from this Asturian mine are very difficult to obtain. They come from the former Manchion collection (with label).


Size: 4.9 x 3.0 x 2.8 cm.
Main crystal: 1.5 x 0.4 cm.
Found in 01/1984.

Col. J.M. Manchion (Barcelona) - No.63 (J. Viñals).
Calcite is fluorescent under LW-UV.
Price: 45 €Buy
 

RM1723   Baryte and fluorite

Berbes, Ribadesella, Asturias, Spain

An aesthetic specimen consisting of bladed, cream colored baryte crystals in parallel growth forming semi-rosettes book shaped, with a tiny bit of associated purple fluorite. With two minor From the collection of the long time, Josep Maria Manchion. 


Size: 8.6 x 6.6 x 4.5 cm.
Found in 1984

Col. J.M. Manchion (Barcelona) - No.100 (J. Viñals, 1984)


Price: 65 €Buy
 

RM1624   Fluorite with quartz and baryte

Berbes, Ribadesella, Asturias, Spain

A very rich group of cubic fluorite crystals, with an intense violet to purple color depending on incident light. On a matrix covered by quartz and baryte crystals. Good size and with L. Daunis (Barcelona) handwritten label collection.


Size: 8.4 x 8.0 x 7.5 cm.
Main crystal: 25 x 25 mm.

Excol. Lluís Daunis & Maria Ruscalleda.
Classic locality


 

RM1635   Fluorite & Pyrite

Josefa-Veneros vein, Coroña de Arriba-La Collada, Siero, Asturias, Spain

Group of fluorite crystals with cubic habit, with good transparence that allows to see a marked color zoning. The main one, shows a cavity in which other fluorite crystals have grown. Very curious. It has a fluorite matrix with interpenetrated cubic pyrite crystals. From a classic Spanish locality.


Size: 5.0 x 4.2 x 2.9 cm.
Main crystal: 8 x 7 mm.
Found in 1990's.

Excol. Lluís Daunis & Maria Ruscalleda.


 

RM1580   Fluorite with quartz

Berbes, Ribadesella, Asturias, Spain

A very curious specimen of fluorite from Berbes, formed by a matrix of hyaline quartz crystals, on which have been growth several colorful cubes. The cubes show edges and defined faces, violet tone, dull gloss and translucent. The sample presents a yellow tonality, a piece from past times from a former Catalan collection.


Size: 6.0 x 6.0 x 5.0 cm.
Main crystal: 20 x 19 mm.
Found in ±1975.

 

RM410   Fluorite with baryte

La Cabaña, Berbes area, Ribadesella, Asturias, Spain

Rich group of sharp violet fluorite crystals, with an exceptional transparency and cube forms. It is accompanied by quartz and aesthetic groups of baryte crystals. From a classic Spanish locality like Berbes.


Size: 8.5 x 6.2 x 4.5 cm.
Main crystal: 5 mm.

 
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