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RM480   Cerussite with barite

Mine des O, Mibladen, Khénifra, Meknès-Tafilalet, Morocco

The large mine of Les O is mined under the town of Mibladen. It has been worked during generations of miners in search of specimens, usually galena cerussite, barite and some wulfenite. Few weeks before my visit in February 2013 were found some mineralized veins and vugs with the specimens we offer. When those cavities were formed they had been filled by cube octahedral crystals of galena and barite. Due to the hydrothermal fluids galena was partially or totally corroded to favor the formation of cerussite.

In this specimen we observe groups of tabular lenticular aggregates of barite with a delicate reddish tones, along with gray galena that has been almost completely substituted and covered by nice cerussite crystals. Taking a look under the microscope, cerussite shows long striated prisms terminated by pyramidal faces. Also note several cyclic twins, well defined and spectacular. Different specimens from Mibladen.


Size: 6,5 x 5,0 x 2,5 cm.
Main crystal: 6 x 5 mm (cerussite).
Found in 01/2013.

Fluorescent under long wave UV
 

RM483   Wulfenite with barite

Mine des Dalles, Mibladen, Khénifra, Meknès-Tafilalet, Morocco

In this specimen we can observe some groups of tabular wulfenite crystals of  intense, very intense orange color, showing defined faces and parallel growth. If anything distinguishes these wulfenite crystals is its vivid color. The brilliance is excellent and in thin areas show transparence. Some of the dominant crystals are disposed very aerial and accompanied by groups of barite crystals. If you observe closely the specimen under the microscope you will see numerous perfect tabular crystals of wulfenite. Very aesthetic specimen.


Size: 7,5 x 5,7 x 4,0 cm.
Main crystal: 17 x 15 mm.
Found in 01/2013.

 

RM484   Native Copper with calcite

Boinás Este, Boinás, Belmonte de Miranda, Asturias, Spain

In this specimen we can observe some groups of native copper crystals, with defined faces and edges, good luster and color. They are disposed on a black layer of pyrolusite and accompanied by some white to translucent calcite flattened rhombohedral crystals. These specimens were collected in a concrete areas of this mine.


Size: 6,0 x 5,3 x 5,0 cm.
Main crystal: 1 x 1 mm.
Found in 2011.

 

RM478   Vanadinite with barite

Coud'a area, Mibladen, Khénifra, Meknès-Tafilalet, Morocco

Excelent group of vanadinite crystals showing a defined hexagonal shape, with very well defined faces and edges, intense red color. Good brilliance and some transparence, with internal reflections between red and orange. Main crystals size are remarkable. They are disposed very aerial on a lenticular barite crystal matrix. The presence of this barite matrix is highly appreciated by collectors and gives to the specimen a special aesthetics.

This sample was collected from one of these shafts where berber (amazigh) miners are working hard during months till they found a vug. This extended area, called Coud'a (Coudia), is located about half mile from well known ACF mine, but it is not the same mine.
The vanadinite veins mined in Coud'a, which are approximately 30 to 50 feet deep, are not the same than ACF mine and their particular mineralogy.


Size: 5,8 x 4,0 x 3,5 cm.
Main crystal: 8 x 8 mm.
Found in 01/2013.

 

RM477   Vanadinite with barite

Coud'a area, Mibladen, Khénifra, Meknès-Tafilalet, Morocco

Group of vanadinite crystals showing a defined hexagonal shape, with very well defined faces and edges, intense red color. Good brilliance and some transparence, with internal reflections between red and orange. Main crystals size are remarkable. They are disposed very aerial on a lenticular barite crystal matrix. The presence of this barite matrix is highly appreciated by collectors and gives to the specimen a special aesthetics.

This sample was collected from one of these shafts where berber (amazigh) miners are working hard during months till they found a vug. This extended area, called Coud'a (Coudia), is located about half mile from well known ACF mine, but it is not the same mine.
The vanadinite veins mined in Coud'a, which are approximately 30 to 50 feet deep, are not the same than ACF mine and their particular mineralogy.


Size: 5,5 x 2,8 x 1,9 cm.
Main crystal: 9 x 8 mm.
Found in 01/2013.

 

RM491   Cobaltoan calcite

Oumlil mine, Oumlil, Bou Azzer, Tazenakht, Ouarzazate, Morocco

Druse of divergent prismatic cobaltoan calcite crystals showing rhombohedral terminal faces, which is not usual, perfectly defined and with good brilliance and translucent. The color varies between pink and tile red . Some of these crystals are partially covered on prism by small and brilliant minute calcite. This color zoning can be seen in the fractured area of the sample. From a Moroccan classic locality.


Size: 6,7 x 6,0 x 3,6 cm.
Main crystal: 5 x 5 mm.

 

RM465   Calcite

La Araña quarry, La Cala, Málaga, Andalucía, Spain

Although our country is rich in different forms of calcite, we want to emphasize on this specimen that shows two generations of crystal growth. The first generation calcite clusters have a good size and orange to yellowish pastel tones. With an elongated striated prism and rhombohedral terminal top forms. They are translucent and brilliant, with echeloned growths on faces.
A second generation of small, but transparent and brilliant calcite crystals, is disposed near to perpendicular on the prism of the first generation. A colored and strongly fluorescent calcite from la Cala.


Size: 7,5 x 5,5 x 3,8 cm.
Main crystal: 2,5 x 1,1 cm.

Fluorescent under long wave UV
 

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.

 

RM466   Fluorite with quartz

La Cabaña, Berbes area, Ribadesella, Asturias, Spain

A very rich group of fluorite crystals with a good size and defined faces and rounded beveled edges. The faces show polysynthetic growths those give it a curious echelonesd forms and accompanied by complex redissolution structures. Really interesting. The color is intensely violet, deep in the inner parts of the crystal and clearer in the outer ones. Good brilliance and transparence when the light strikes on them. A specimen of the past times, rarely seen nowadays. It belonged to an old German collection. Col. Nr. 7.


Size: 9,0 x 8,5 x 3,0 cm.
Main crystal: 9 x 9 mm.

Precio reducido-Reduced price 120€


 

RM462   Erithryte

Bou Azzer, Tazenakht, Ouarzazate, Souss-Massa-Draâ, Morocco

On a heavy Co-As primary minerals matrix are disposed a rich group of acicular prismatic erythrite crystals. They form the usual globular aggregates but, in this specimen, disposition and this pink to orange color give to the specimen a different touch. A classic from this Moroccan cobalt locality.


Size: 6,0 x 5,8 x 5, 8 cm.
Main crystal: 7 mm. aggreg.

 

RM461   Erythrite

Bou Azzer, Tazenakht, Ouarzazate, Souss-Massa-Draâ, Morocco

On a rich Co-As primary minerals matrix are disposed several groups of acicular crystals of erythrite forming colloquially called: hedgehog aggregates. They are partially covering the matrix, as isolated groups or like a velvet. The pink to fuchsia colors are remarkable and confers to the specimen an excellent aesthetics.


Size: 10,0 x 5,3 x 3,6 cm.
Main crystal: 5 mm. aggreg.

 

RM464   Fluorite with quartz

La Cabaña, Berbes area, Ribadesella, Asturias, Spain

Group of very sharp fluorite crystals from this classic of the Spanish mineralogy. We can see the cube forms, with defined edges and faces. With clear geometric color zoning, between purple to violet depending on the incident light, more intense in the crystal core. A specimen of fluorite which collector should not miss.


Size: 5,6 x 4,8 x 3,4 cm.
Main crystal: 10 x 9 mm.

 

RM463   Calcite, butterfly twin

José María Patoni (Menores de Arriba), San Juan del Río, Durango, México

An excellent sample of a calcite showing a marked butterfly twin. Two twinned crystals in the same sample. Good transparence and very aerial disposed. This calcite comes from the deposits of optical calcite of José María Patoni. These mining works are famous worldwide for the purity, transparence and crystallographic complexity of its calcite crystals. Nice miniature.


Size: 4,0 x 3,3 x 1,6 cm.
Main crystal: 23 x 14 mm.
Found in 2004

Fluorescent under long wave UV
 

RM445   Scolecite

Soriana quarry, Estopanyà (Estopiñán del Castillo), Huesca, Aragón, Spain

Scolecite and aerinite specimens from this small Aragonese town are known worldwide. This specimen shows groups of acicular prismatic crystals those form globular aggregates which, when extracted, they allow us to see the radiated growths perfectly. Snowy white color and good luster. Samples of this quality are rare and less nowaday. Usually radiated aggregates appear very flat filling cavities into the dolerite rock.


Size: 5,0 x 4,4 x 2,3 cm.
Main crystal: 21 mm.
Found in ca 1990.

Ex-col. Daunis Barcelona).
Fluorescent under long wave UV
 

RM455   Adamite

Ojuela mine, Mapimí, Municipio de Mapimí, Durango, México

Group of very sharp adamite crystals showing an intense brilliance and color between yellow to colorless. Different orders prisms are present, isome of the end faces can remind the octahedron. Thus, in the specimen we can see very elongated crystals, some other flattened and almost equidimensional. Transparence and luster are really good. Crystals are disposed very aerial on a goethite matrix. This sample belongs to a German collection.


Size: 7,5 x 6,8 x 4,1 cm.
Main crystal: 13 x 10 mm.

Old col. Nr. 2704.
Fluorescent under LW-UV and SW-UV lights
 

RM444   Smithsonite with rosasite

Silver Hill mine group, Waterman Mts., Silver Hill, Pima Co., Arizona, United States of America

It is a brilliant smithsonite specimen from a mine not well represented and very uncommon in the collections, including the American collections. These zinc carbonate crystals show a polysynthetic growths of rhombohedrons, color between white to colorless, with a strong pearlescent luster and forming botryoidal aggregates. They are accompanied by blue-green rosasite, in spherical aggregates.
This specimen
is interesting for different reasons. The accompanying old label belongs to the Antigua Casa (former house) Soler Pujol of Barcelona, ​​known for its collections relating to the natural history sciences. We add to its history that this specimen was in the collection of Mr. Lluís Daunis, also from Barcelona. An old specimen from a interesting American locality.


Size: 7,3 x 5,5 x 3,5 cm.
Main crystal: 1 x 1 mm.
Found in ca 1960.

Ex-col. Daunis.


 

RM453   Strontianite with limonite

Oriolana mine, Busot, Alicante, Valencia, Spain

Group of strontianite crystals with an elongated pyramidal habit, forming bundles and aggregates, with color between white to colorless. These specimens appeared in a concrete area of the mine Oriolana (Busot, Alicante) and initially were identified as aragonite or calcite. Further analysis indicated that this was strontianite with some calcium. It indicates that the crystals are zoned and its composition varies within the crystal. They were determined strontianita (majority), celestite, calcite with some quartz (probably due to mechanical mixtures). 


Size: 8,3 x 6,4 x 3,6 cm.
Main crystal: 3 mm (aggreg).
Found in 2011

Fluorescent under long wave UV
 

RM439   Scheelite with clinochlore and quartz

Yaogangxian mine, Yaogangxian W-Sn ore field, Yizhang, Hunan, China

A very rich group of sharp psedo-octahedrical scheelite crystals, with an intense brown color, excellent luster and some transparence. They are disposed on a quartz matrix partially covered by small clinochlore green crystals. A very nice specimen for display.


Size: 8,2 x 6,4 x 3,5 cm.
Main crystal: 11 x 11 mm.
Found in 2009

Fluorescent under short wave UV
 

RM438   Quartz with inclusions and limonite

Vasquez-Yacopí (area minera), Boyacá, Colombia

A very rich group of quartz crystals, some of them doubly terminated, with well defined faces and edges. Interesting elongated prism and terminal faces. We would like to emphisize the delicate filamentous inclusions that can be seen inside through transparency.
These inclusions are of unknown composition, but probably due to fluid inclusions originated during the crystal growth. They are accompanied by curious hemispherical aggregates of goethite-limonite, with a intense orange color, formed after the quartz crystals. From a known mining area, but these specimens are not well represented in collections.


Size: 8,2 x 7,2 x 5,5 cm.
Main crystal: 38 x 9 mm.
Found in 2009

 

RM436   Quartz with pyrophyllite and Pyrite

Arestui, Llavorsí, Lleida, Catalunya, Spain

A brilliant quartz crystals from a well known Catalan area, in the Pyrenees, very appreciated for the quality of its hyaline crystals. A rich group of quartz crystals showing a elongated prism and developed and deformed rhombohedral terminal faces. Transparence and brilliance are excellent, with very well defined faces and edges. They are partially covered by small aggregates of pyrophyllite, between colorless to slightly yellow, with some goethitized pyrite. These specimens usually occur in geodes and it is very common find them falled down inside the vug; this specimen shows that one of the crystals has been lost, without affecting the beauty of the whole. This huge size sample is a nice representative of the known Llavorsí's quartz crystals.


Size: 9,2 x 7,0 x 4,8 cm.
Main crystal: 3,7 x 1,4 cm.
Found in 2009

Classic locality
 

RM437   Quartz with pyrophyllite

Arestui, Llavorsí, Lleida, Catalunya, Spain

A brilliant quartz crystals from a well known Catalan area, in the Pyrenees, very appreciated for the quality of its hyaline crystals. A rich group of quartz crystals showing a elongated prism and developed and deformed rhombohedral terminal faces. We also observe some of them doubly terminated, highlighting one of them because of their size. Transparence and brilliance are excellent, with very well defined faces and edges. They are partially covered by small aggregates of pyrophyllite, between colorless to slightly yellow, with some goethitized pyrite. No damage. This sample is a nice representative of the known Llavorsí's quartz crystals.


Size: 7,1 x 6,5 x 5,5 cm.
Main crystal: 4,4 x 1,6 cm.
Found in 2009

Precio reducido-Reduced price 145€
 

RM454   Pyromorphite with barite

Mine des Farges, Ussel, Corrèze, Limousin, France

On a barite matrix are disposed several brilliant and very sharp pyromorphite crystals with a very interesting deep olive-green color. They have grow in divergent directions. Some of the crystals are isolated, with an elongated prism. Very interesting under stereomicroscope, we can see excellent crystal growths. Really nice specimen. A classic between classics from this well known french mine closed in 1981. A great opportunity for pyromorphite and old classic mineral collectors.


Size: 7,5 x 4,8 x 2,3 cm.
Main crystal: 7 x 2 mm.

Precio reducido-Reduced price 135€
 

RM450   Pyromorphite with barite

Mine des Farges, Ussel, Corrèze, Limousin, France

On a barite matrix are disposed several sharp pyromorphite crystals with a very interesting color olive-green color. They have grow in divergent directions. Some of the crystals are isolated, with an elongated prism. Really excelent specimen. A classic between classics from this well known french mine closed in 1981. A great opportunity for pyromorphite and old classic mineral collectors.


Size: 6,8 x 4,5 x 3,4 cm.
Main crystal: 10 x 2 mm.

Precio reducido-Reduced price 140€
 

RM448   Pyromorphite with quartz and barite

Mine des Farges, Ussel, Corrèze, Limousin, France

On a quartz matrix are disposed some sharp pyromorphite crystals with a very interesting color zoning between light green in prism faces and yellow tones on terminal pinacoids. Crystals show a hexagonal barrel-shaped prism with flattened terminal faces on the top. They have grow in divergent directions. Some of the crystals are isolated, with an elongated prism. A classic between classics from this well known french mine closed in 1981. A nice specimen of pyromorphite.


Size: 4,7 x 3,5 x 3,5 cm.
Main crystal: 14 x 6 mm.

 

RM449   Pyromorphite with barite

Mine des Farges, Ussel, Corrèze, Limousin, France

On a barite matrix are disposed several sharp pyromorphite crystals with a very interesting color zoning between olive-green in prism faces and yellow tones on terminal ones. Crystals show a hexagonal barrel-shaped prism with the pyramid terminal faces on the top. They have grow in divergent directions. Some of the crystals are isolated, with an elongated prism. Contrasting with the dark brown matrix. A classic between classics from this well known french mine closed in 1981. A great opportunity for pyromorphite and old classic mineral collectors.


Size: 5,5 x 4,0 x 2,8 cm.
Main crystal: 7 x 2 mm.

 
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