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RM2417   Cinnabar and quartz

Escarlati Mine, Puerto de las Señales, Maraña, León, Castilla y León, Spain

Various complex cinnabar crystals, some with a cyclic twin, one of them clearly dominant. Excellent luster and intense red color, stand out on the quartz matrix from which the calcite has been removed. This mine was worked until the early 1970s. A Spanish classic that is not easy to find in the market.


Size: 6.6 x 3.2 x 1.8 cm.
Main crystal: 6 mm.

 

RM2420   Epidote

Ampliación Aquí Estoy quarry, Bóveda de la Ribera, Medina de Pomar, Burgos, Castilla y León, Spain

Group of fan-shaped prismatic epidote crystals, brilliant and with an intense green color. These specimens come from a not well-known quarry, close to Medina de Pomar, in Burgos, from a quarry where the ofites have been mined by the company Minera Ofitas del Norte.


Size: 8.5 x 4.4 x 3.8 cm.
Main crystal: 1 cm.

Price: 30 €Buy
 

RM2419   Epidote

Ampliación Aquí Estoy quarry, Bóveda de la Ribera, Medina de Pomar, Burgos, Castilla y León, Spain

Rich group of fan-shaped prismatic epidote crystals, brilliant and with an intense green color. These specimens come from a not well-known quarry, close to Medina de Pomar, in Burgos, from a quarry where the ofites have been mined by the company Minera Ofitas del Norte.


Size: 9.1 x 7.5 x 3.2 cm.
Main crystal: 1.2 cm.

Price: 65 €Buy
 

RM2416   Epidote

Ampliación Aquí Estoy quarry, Bóveda de la Ribera, Medina de Pomar, Burgos, Castilla y León, Spain

Rich group of fan-shaped prismatic epidote crystals, brilliant and with an intense green color. These specimens come from a not well-known quarry, close to Medina de Pomar, in Burgos, from a quarry where the ofites have been mined by the company Minera Ofitas del Norte.


Size: 6.2 x 4.8 x 1.8 cm.
Main crystal: 1.1 cm.

Price: 50 €Buy
 

RM2413   Stibnite and calcite

María Teresa mine, Riaño, León, Castilla y León, Spain

This Leonese mine is near the Riaño reservoir. In this specimen we can see various radial aggregates of acicular prismatic stibnite crystals, with an intense luster and disposed in a calcite matrix that include them. In 1909 Spanish Mining Statistics, indicates the demarcation of 22 properties in this area with the name of "María Teresa" mine (document Nr. 3,260), of antimony, in the name of Policarpo Herrero, domiciled in Oviedo (FMF). A very fine and representative specimen.


Size: 6.3 x 6.2 x 2.4 cm.
Main crystal: 1.8 cm.
Found in 2019

 

RM2029   Anatase with quartz

Moro Quarry, Oteruelo de la Valduerna, Santiago de Millas, León, Castilla y León, Spain

Druse of small quartz crystals, some doubly terminated, partially covered by white kaolinite. Peppered by several anatase crystals, with dipyramidal faces, truncated by basal pinacoid. Very sharp, translucent and with a toasted honey tone. Very aesthetic and rare in the market.
It is interesting to say that recent analysis of the reddish ashlars of the Torre Nueva (New Tower) of the Astorga cathedral indicated that these building materials were extracted from this Cantera del Moro during XVIIth and XVIIIth centuries.


Size: 6 x 4.5 x 3.8 cm.
Main crystal: 2.5 mm.

Price: 40 €Buy
 

RM2027   Anatase with quartz

Moro Quarry, Oteruelo de la Valduerna, Santiago de Millas, León, Castilla y León, Spain

Druse of small quartz crystals, some doubly terminated, partially covered by white kaolinite. Peppered by several anatase crystals, with dipyramidal faces, truncated by basal pinacoid. Very sharp, translucent and with a toasted honey tone. Very aesthetic and rare in the market.
It is interesting to say that recent analysis of the reddish ashlars of the Torre Nueva (New Tower) of the Astorga cathedral indicated that these building materials were extracted from this Cantera del Moro during XVIIth and XVIIIth centuries.


Size: 10 x 9 x 4 cm.
Main crystal: 1.5 mm.

Price: 45 €Buy
 

RM2023   Anatase with quartz

Moro Quarry, Oteruelo de la Valduerna, Santiago de Millas, León, Castilla y León, Spain

Druse of small quartz crystals, some doubly terminated, partially covered by white kaolinite. Peppered by several anatase crystals, with dipyramidal faces, truncated by basal pinacoid. Very sharp, translucent and with a toasted honey tone. Very aesthetic and rare in the market.
It is interesting to say that recent analysis of the reddish ashlars of the Torre Nueva (New Tower) of the Astorga cathedral indicated that these building materials were extracted from this Cantera del Moro during XVIIth and XVIIIth centuries.


Size: 7 x 5.2 x 4.2 cm.
Main crystal: 2 mm.

Price: 30 €Buy
 

RM2013   Anatase with quartz

Moro Quarry, Oteruelo de la Valduerna, Santiago de Millas, León, Castilla y León, Spain

Druse of small quartz crystals, some doubly terminated, partially covered by white kaolinite. Peppered by several anatase crystals, with dipyramidal faces, truncated by basal pinacoid. Very sharp, translucent and with a toasted honey tone. Very aesthetic and rare in the market.
It is interesting to say that recent analysis of the reddish ashlars of the Torre Nueva (New Tower) of the Astorga cathedral indicated that these building materials were extracted from this Cantera del Moro during XVIIth and XVIIIth centuries.


Size: 6 × 4.5 × 3.7 cm
Main crystal: 2 mm

 

RM1826   Pyromorphite

Florisada Mine, Casas de Monleón, Endrinal, Salamanca, Castilla y León, Spain

Rich group of small hexagonal prismatic pyromorphite crystals with an intense green color partially covering a quartz matrix. Crystals are very sharp and color very uniform. From a Spanish locality not well represented in collections.


Size: 4.8 x 4.5 x 4.0 cm.

Col. Jordi Povill
Classic locality
 

RM1783   Variscite

Palazuelo de las Cuevas, Zamora, Castilla y León, Spain

Specimen formed by a large group of aggregated nodules of variscite with concentric growths and apple green color. They are enclosed in a matrix with limonite. We can see the concentric structures in the natural fracture. Since its discovery in 1970, the Palazuelo de las Cuevas deposit became the "source" of variscite for the NW of the Iberian peninsula.


Size: 5.5 x 5.5 x 5.3 cm.
Found in ±1980's

Price: 35 €Buy
 

RM1777   Variscite

Palazuelo de las Cuevas, Zamora, Castilla y León, Spain

Specimen formed by a large group of aggregated nodules of variscite with concentric growths and apple green color. They are enclosed in a matrix with limonite. We can see the concentric structures in the natural fracture. Since its discovery in 1970, the Palazuelo de las Cuevas deposit became the "source" of variscite for the NW of the Iberian peninsula.


Size: 6.2 x 4.8 x 3.5 cm.
Found in ±1980's

 

RM1776   Variscite

Palazuelo de las Cuevas, Zamora, Castilla y León, Spain

Specimen formed by a large group of aggregated nodules of variscite with concentric growths and apple green color. They are enclosed in a matrix with limonite. We can see the concentric structures in the natural fracture. Since its discovery in 1970, the Palazuelo de las Cuevas deposit became the "source" of variscite for the NW of the Iberian peninsula.

 


Size: 5.3 x 4.2 x 1.8 cm.
Found in ±1980's

 

RM1775   Variscite

Palazuelo de las Cuevas, Zamora, Castilla y León, Spain

Specimen formed by a large group of aggregated nodules of variscite with concentric growths and apple green color. They are enclosed in a matrix with limonite. We can see the concentric structures in the natural fracture. Since its discovery in 1970, the Palazuelo de las Cuevas deposit became the "source" of variscite for the NW of the Iberian peninsula.


Size: 4.5 x 3.8 x 3.3 cm.
Found in ±1980's

 

RM1754   Native Gold (nugget)

Salvatierra de Tormes, Salamanca, Castilla y León, Spain

These gold nuggets were collected from the alluvial deposits of the quaternary paleoterraces of the Tormes river, pass through the locality of Salvatierra de Tormes. The analysis carried out have shown the presence of silver. Some specimens contain fragments of quartz. Thin, good size and brilliant. Weight: 0.20 g.


Size: 1.0 x 0.6 x 0.1 cm.
Found in 2018.



 

RM1753   Native Gold (nugget)

Salvatierra de Tormes, Salamanca, Castilla y León, Spain

These gold nuggets were collected from the alluvial deposits of the quaternary paleoterraces of the Tormes river, pass through the locality of Salvatierra de Tormes. The analysis carried out have shown the presence of silver. Some specimens contain fragments of quartz. Thick, good size and brilliant. Weight: 0.97g.


Size: 1.0 x 0.8 x 0.3 cm.
Found in 2018.



 

RM1751   Native Gold (nugget)

Salvatierra de Tormes, Salamanca, Castilla y León, Spain

These gold nuggets were collected from the alluvial deposits of the quaternary paleoterraces of the Tormes river, pass through the locality of Salvatierra de Tormes. The analysis carried out have shown the presence of silver. Some specimens contain fragments of quartz. Thin, good size and brilliant. Weight: 1.34 g.


Size: 1.6 x 1.5 x 0.1 cm.
Found in 2018.



 

RM1540   Quartz pseudomorph after orthoclase (Karlsbad twin)

Malpartida de Corneja, Ávila, Castilla y León, Spain

These specimens were collected in an outcrop situated between the villages of Malpartida de Corneja and Casillas de Chicapierna, in Ávila. They are floating crystals of twinnen orthoclase (Karlsbad) those have been partially or totally pseudomorphized by quartz. They present visible forms of the twin, with altered faces with curious cavities. Some specimens still preserve an orthoclase crystal core. This pseudomorphosis is very unusual.


Size: 4.6 x 3.6 x 2.0 cm.
Found in ±1990

 

RM1538   Quartz pseudomorph after orthoclase (Karlsbad twin)

Malpartida de Corneja, Ávila, Castilla y León, Spain

These specimens were collected in an outcrop situated between the villages of Malpartida de Corneja and Casillas de Chicapierna, in Ávila. They are floating crystals of twinnen orthoclase (Karlsbad) those have been partially or totally pseudomorphized by quartz. They present visible forms of the twin, with altered faces with curious cavities. Some specimens still preserve an orthoclase crystal core. This pseudomorphosis is very unusual.


Size: 3.8 x 3.6 x 1.8 cm.
Found in ±1990

 

RM1537   Quartz pseudomorph after orthoclase (Karlsbad twin)

Malpartida de Corneja, Ávila, Castilla y León, Spain

These specimens were collected in an outcrop situated between the villages of Malpartida de Corneja and Casillas de Chicapierna, in Ávila. They are floating crystals of twinnen orthoclase (Karlsbad) those have been partially or totally pseudomorphized by quartz. They present visible forms of the twin, with altered faces with curious cavities. Some specimens still preserve an orthoclase crystal core. This pseudomorphosis is very unusual.


Size: 4.6 x 4.1 x 2.2 cm.
Found in ±1990

 

RM1506   Opal

Teso del Nabo, Pereruela, Zamora, Castilla y León, Spain

Among the Spanish collectors, the Zamoran opals are well known. This specimen were collected from an area from which to obtain pieces with this quality and size is very difficult, I can certify it... This specimen presents opal nodules, with an intense orange color, some brilliance and surrounded by a solid matrix. I say this because, despite the visible fractures, stability is assured. A sample of quality for this locality.


Size: 7.5 x 4.5 x 2.5 cm.
Found in 10/2014.

 

RM1505   Opal

Teso del Nabo, Pereruela, Zamora, Castilla y León, Spain

Among the Spanish collectors, the Zamoran opals are well known. This specimen were collected from an area from which to obtain pieces with this quality and size is very difficult, I can certify it... This specimen presents opal nodules, with an intense orange color, some brilliance and surrounded by a solid matrix. I say this because, despite the visible fractures, stability is assured. A sample of quality for this locality.


Size: 7.4 x 5.7 x 3.0 cm.
Found in 10/2014.

 

RM1002   Quartz

Villacastín, Segovia, Castilla y León, Spain

Very rich druse of hyaline quartz crystals from a not very-known Spanish locality. Brilliant short prisms, with rich parallel growth, and nice terminal faces. With well defined faces and edges. From its quarries various rock typologies are extracted, the main and the most abundant is the granite characterized by its high hardness and quality, which was honored with a denomination itself, Grey Villa Granite.


Size: 12.0 x 8.5 x 6.9 cm.
Main crystal: 25 x 20 mm.
Found in ca. 2010.

 

RM734   Wavellite with turquoise (crystallized)

Palazuelo de las Cuevas, Aliste, Zamora, Castilla y León, Spain

In this specimen we can see some matrix cavities covered by botryoidal aggregates formed by wavellite crystals. Different layers of wavellite are observed. Its color is greenish yellow and more bluish in some areas by the presence of turquoise. They are partially covered by several small aggregates of lanceolate turquoise crystals (see photo) with a light blue color.

These wavellite and turquoise specimens have been analyzed by microprobe and we will send the results to the purchaser, with the SEM photograph of both species. Palazuelo de las Cuevas area is known worldwide for variscite, that were worked for making beads in the Neolithic period, it was 5.000 years ago.


Size: 6,5 x 5,6 x 5,0 cm.
Found in 03/2013.



 

RM735   Wavellite with turquoise (crystallized)

Palazuelo de las Cuevas, Aliste, Zamora, Castilla y León, Spain

In this specimen we can see some matrix cavities covered by botryoidal aggregates formed by wavellite crystals. Different layers of wavellite are observed. Its color is greenish yellow. They are peppered by small aggregates of turquoise crystals with a light blue color.

These wavellite and turquoise specimens have been analyzed by microprobe and we will send the results to the purchaser, with the SEM photograph of both species. Palazuelo de las Cuevas area is known worldwide for variscite, that were worked for making beads in the Neolithic period, it was 5.000 years ago.


Size: 8,5 x 6,0 x 3,8 cm.
Found in 03/2013.



 
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