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RM2511   Quartz

Serrabal mine, Vedra, A Coruña, Galícia, Spain

Group of quartz crystals, with developed prisms and defined terminal faces, between transparent to translucent. With interesting parallel growths. They are disposed very aerially on the matrix partially dotted with kaolinite.
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: 9.3 x 8 x 6.5 cm.
Main crystal: 4.8 cm.
Found in 2017.

 

RM2506   Quartz

Serrabal mine, Vedra, A Coruña, Galícia, Spain

Rich group of quartz crystals, with developed prisms and defined terminal faces, between transparent to translucent. With interesting parallel growths. They are disposed very aerially on the matrix partially dotted with kaolinite.
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: 12 x 7.8 x 5.5 cm.
Main crystal: 4 cm.
Found in 2017.

 

RM2505   Quartz

Serrabal mine, Vedra, A Coruña, Galícia, Spain

Group of quartz crystals, with developed prisms and defined terminal faces, between transparent to translucent. They are disposed very aerially on the matrix partially dotted with kaolinite.
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: 7.5 x 6.2 x 6 cm.
Main crystal: 3.8 cm.
Found in 2017.

Price: 60 €Buy
 

RM2504   Quartz

Serrabal mine, Vedra, A Coruña, Galícia, Spain

Rich group of quartz crystals, with developed prisms and defined terminal faces, between transparent to translucent. They are disposed very aerially on the matrix partially dotted with kaolinite.
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: 11.2 x 8 x 5.4 cm.
Main crystal: 4 cm.
Found in 2017

 

RM2503   Fluorite

Mandronarivo area, Mandronarivo, Beroroha, Atsimo Andrefana, Toliara, Madagascar

A good size specimen showing a group of cubic fluorite crystals, between translucent and transparent, with an intense green color with delicate dichroism under sunlight. The crystals are interpenetrated and show geometric color zoning and interesting and esthetic inclusions of white color. Very fluorescent under LW-UV and SW-UV. New locality for fluorite in Madagascar.


Size: 12 x 9.5 x 7 cm.
Main crystal: 3.6 cm.
Found in 2018.

Fluorescent under LW-UV and SW-UV lights
 

RM2502   Fluorite

Mandronarivo area, Mandronarivo, Beroroha, Atsimo Andrefana, Toliara, Madagascar

A good size specimen showing a group of cubic fluorite crystals, between translucent and transparent, with an intense green color with delicate dichroism under sunlight. The crystals are interpenetrated and show geometric color zoning and interesting and esthetic inclusions of white color. Very fluorescent under LW-UV and SW-UV. New locality for fluorite in Madagascar.


Size: 15.5 x 7.7 x 6.8 cm.
Main crystal: 2.2 cm.
Found in 2018.

Fluorescent under LW-UV and SW-UV lights
Price: 120 €Buy
 

RM2499   Ojuelaite with natropharmacosiderite and arsenopyrite

Ojuela mine, Mapimí, Municipio de Mapimí, Durango, Mexico

Ojuelaite is a very rare zinc and iron arsenate named after the world famous Ojuela mine (Mexico), its type locality. The species, which belongs to the arthurite group, was accepted by the IMA in 1982 and is isostructural with whitmoreite. It is found in the oxidation zone of the Ojuela deposit, associated with scorodite, adamite and / or smithsonite.
In the article published by Cesbron, Romero and Williams [La mapimite et l'ojuélaïte, deux nouveaux arséniates hydratés de zinc et de fer de la mine Ojuela, Mapimi, Mexique. Bulletin de Minéralogie 104, 582-586. (1981)] two new minerals were described, mapimite and ojuelaite. The studied specimens were obtained thanks to the well-known Mexican mineralogist Don Manuel Romero.
In this specimen, ojuelaite is associated with natropharmacosiderite-pharmacosiderite, as shown by the XRD attached. The arsenopyrite matrix is partially covered by aggregates of natropharmacosiderite-pharmacosiderite crystals, with a green color, brilliant and with cubic shapes. The ojuelaite of this specimen is showing radial fibrous aggregates, with a silky luster and yellow color. We will send the analyzes to the buyer. Former Marcus J. Origlieri collection.
We can say that this specimen is among the best worldwide for this species, due to its size, richness, aesthetics and quality.


Size: 10 x 7.6 x 2.9 cm.
Main crystal: 3 mm rad. aggr.

Coll. Marcus J. Origlieri.
Type Locality


 

RM2500   Variscite

Can Palomeres, Malgrat de Mar, Barcelona, Catalunya, Spain

Variscite is a hydrated aluminum phosphate present in different Catalan deposits found in the Catalan Coastal Mountain Ranges. Well-known sites are those of the Serra de Miramar, in Tarragona; Bruguers, Gavà and Cerdanyola in Barcelona, along with the well-known site of Montcada i Reixac, close to the city of Barcelona. Less well known are the deposits in the northernmost area of these mountain ranges, between Malgrat de Mar and Pineda de Mar area. This specimen comes from the Malgrat area and was found in surveys near Can Palomeres. The variscite vein shows a green color with yellow to whitish tones. It is included in slates with other phosphates such as phosphosiderite and strengite. We can observe so-called ptygmatic folds produced by the entry of a viscous fluid (variscite) into a less viscous one.


Size: 10 x 7.2 x 6.2 cm.
Main crystal: 1.1 cm. vein/veta
Found in 2018.

 

RM2487   Willemite with rhodochrosite and franklinite

Sterling Hill, Franklin Mining District, Ogdensburg, Sussex, New Jersey, United States

A really good sized specimen in which we highlight various orange willemite crystals, the main one is doubly terminated. They are included in rhodochrosite and on a matrix with franklinite crystals. This specimen is from the Renaud Vochten collection. The intense fluorescence of willemite stands out with a yellowish-green emission under short-wave ultraviolet light. Renaud F.C. Vochten (8 December 1933 - 29 July 2012), professor of mineralogy at the State University of Antwerpen (Belgium), with a species dedicated: vochtenite [link].


Size: 11.1 x 7.5 x 6.7 cm.
Main crystal: 1.8 cm.
Found in ca. 1989.

Col. Renaud F.C. Vochten (Bélgica).
Fluorescent under short wave UV


 

RM2498   Hydrozincite

Hermosa mine, Sel del Haya, Cobijón, Udías, Cantabria, Spain

Really good sized hydrozincite specimen from this classic Spanish mine, with botryoidal forms and beige tone. The specimens with these sizes are difficult to see today. This one comes from the A. Arguijo collection. The Hermosa or Sel del Haya mine was a lead and zinc exploitation whose activity was carried out mainly between 1855 and 1932, although in the decade from 1950 to 1960 some important works were carried out. Settled on dolomitic limestone from the Aptian, the main mineralization comprises lead and zinc, the latter being the most important, both in the form of carbonates and sulphides [link].


Size: 15 x 13 x 11 cm.
Found in ca. 1980.

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

RM2496   Calcite after glauberite

Camp Verde, Yavapai Co., Arizona, United States

This specimen is one of the well-known calcite after glauberite pseudomorphs from Arizona. This aesthetic floating specimen shows interpenetrated crystals, very well defined faces and edges and a delicate cream tone. A classic by itself.


Size: 3.9 x 2.4 x 2.1 cm.

Price: 25 €Buy
 

RM2495   Calcite after glauberite

Camp Verde, Yavapai Co., Arizona, United States

This specimen is one of the well-known calcite after glauberite pseudomorphs from Arizona. This aesthetic floating specimen shows interpenetrated crystals, very well defined faces and edges and a delicate cream tone. A classic by itself.


Size: 4 x 3.9 x 2.7 cm.

Price: 25 €Buy
 

RM2494   Calcite after glauberite

Camp Verde, Yavapai Co., Arizona, United States

This specimen is one of the well-known calcite after glauberite pseudomorphs from Arizona. This aesthetic floating specimen shows interpenetrated crystals, very well defined faces and edges and a delicate cream tone. Good size. A classic by itself.


Size: 5.7 c 2.6 x 2.2 cm.

Price: 35 €Buy
 

RM2493   Calcite after glauberite

Camp Verde, Yavapai Co., Arizona, United States

This specimen is one of the well-known calcite after glauberite pseudomorphs from Arizona. This aesthetic floating specimen shows interpenetrated crystals, very well defined faces and edges and a delicate cream tone. Good size. A classic by itself.


Size: 5.2 x 2.9 x 2.9 cm.

Classic locality
Price: 35 €Buy
 

RM2490   Twinned Aragonite

Minglanilla, Cuenca, Castilla-La Mancha, Spain

This Spanish aragonite specimen shows two twinned and interpenetrated crystals. They have a really good brilliance and tones those varies from whitish to brown, translucent. Twinned cyclically on {110} and showing a hexagonal prismatic habit. It comes from the Arguijo collection.


Size: 3.6 x 2.8 x 2.3 cm.
Main crystal: 2.9 & 2.2 cm.
Found in ca. 1980.

Col. A. Arguijo (L'Hospitalet de Llobregat).
Price: 35 €Buy
 

RM2488   Twinned aragonite

Minglanilla, Cuenca, Castilla-La Mancha, Spain

This Spanish aragonite specimen shows several twinned and interpenetrated crystals, one of them with a big size. They have a really good brilliance and tones those varies from whitish to brown, translucent. Twinned cyclically on {110} and showing a hexagonal prismatic habit. It comes from the Arguijo collection.


Size: 5.2 x 4.8 x 4.6 cm.
Found in ca. 1980.

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

RM2489   Twinned aragonite

Minglanilla, Cuenca, Castilla-La Mancha, Spain

This Spanish aragonite specimen shows several twinned and interpenetrated crystals, one of them with a big size. They have a really good brilliance and tones those varies from whitish to violet, translucent. Twinned cyclically on {110} and showing a hexagonal prismatic habit. It comes from the Arguijo collection.


Size: 5.1 x 4.8 x 4.2 cm.
Found in ca. 1980.

Col. A. Arguijo (L'Hospitalet de Llobregat).
Price: 40 €Buy
 

RM2491   Epidote

Rosario Mabel claim, Pampa Blanca, Castrovirreyna, Huancavelica, Peru

Epidote crystal, dark olive green in colour, very bright, with defined terminations, striking lighter green reflections and many flashes of greenish-yellow internal fire. Excellent specimen of Peruvian epidote.


Size: 3.7 x 2.1 x 1.8 cm.
Found in 2019.

 

RM2492   Epidote

Rosario Mabel claim, Pampa Blanca, Castrovirreyna, Huancavelica, Peru

Good size epidote crystal, dark olive green in colour, very bright, with defined terminations, striking lighter green reflections and many flashes of greenish-yellow internal fire. Excellent specimen of Peruvian epidote.


Size: 4.8 x 2.8 x 2.6 cm.
Found in 2019.

 

RM2497   Aluminium

Bulla Island, Caspian Sea, Gobustan, Azerbaijan

Small particles containing grains of native aluminum, an extreme rarity. In the images we can see that they are associated with magnetite. They most likely contain akdalaite, an oxide hydroxide of aluminum, which we have not confirmed due to the limitations of the electron microscopy technique. We will send report to the buyer.
The Bulla or Boulla is a mud volcano on the island of the same name, in the Baku archipelago, a few km SE of the city of Baku. The most intense eruptions occurred in 1857 and 1940, when erupting breccia volumes reached a few million cubic meters. The most interesting mineralization (native metals, akdalaite) is related to the ejection of the 1947 eruption.


Size: 1.8 x 1 mm.

Analyzed specimen with report


Price: 95 €Buy
 

RM2452   Siderite

Osor mines, Osor, Girona, Catalunya, Spain

Siderite rhombohedral crystals, flattened, bright and defined. They have a honeyed to golden colour, with a second generation of smaller crystals. They are disposed on a matrix. Siderite specimens from this Catalan mine are uncommon.


Size: 7.4 x 6.8 x 4.6 cm.
Main crystal: 0.9 cm.

Col. J. Povill (Olesa de Montserrat).
 

RM2465   Stalactitic calcite

Moratilla de Henares, Guadalajara, Castilla-La Mancha, Spain

Specimen of calcite with very aesthetic stalactitic forms. It comes from a locality not well represented in collections.


Size: 6.6 x 6 x 5.6 cm.
Found in ca. 1980.

Col. A. Arguijo (L'Hospitalet de Llobregat).
Price: 25 €Buy
 

RM2463   Cobaltoan dolomite

Musonoi Mine, Kolwezi, Katanga, Congo, Democratic Republic of

Colourful specimen of cobaltoan dolomite, with intense color, brilliance and translucent crystals. Very aesthetic. From the J. Astor collection (Barcelona).


Size: 4.1 x 2.6 x 2.4 cm.
Found in ca. 1987.

Col. J. Astor (Barcelona).
 

RM2458   Iridescent goethite

Corta Filón Sur, Tharsis, Alosno, Huelva, Andalucía, Spain

Very aesthetic specimen of goethite, with stalactitic growths, brightness and zoned iridescences of reddish, greenish, pink, yellow reflections... A very aesthetic piece of this classic locality. From the J. Astor collection (Barcelona).


Size: 5.3 x 3.3 x 2.2 cm.
Found in ca. 1988.

Col. J. Astor (Barcelona).


 

RM2457   Baryte

Campos de golf area, Sierra Minera de Cartagena-La Unión, Atamaría, Cartagena, Murcia, Spain

Rich aggregate of tabular baryte crystals, brilliant, defined and between translucent to transparent on the edges. From a classic locality for the Spanish mineralogy.


Size: 6.2 x 4 x 3 cm.
Main crystal: 1 cm.
Found in ca. 1996.

Col. J. Astor (Barcelona).


Price: 40 €Buy
 
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