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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


 

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.

 

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
 

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
 

RM2454   Boleite with atacamite and malachite on matrix

Boleo, Santa Rosalía, Municipio de Mulegé, Baja California Sur, Mexico

Old specimen of boleite showing a group of crystals, two of them predominant, with brightness and intense color. They are accompanied in matrix by malachite and atacamite. This sample was acquired by Joan Astor to Jordi Fabre in 1986. We keep the labels of the Astor collection and the former Jordi Fabre label. From the type locality.


Size: 5.4 x 4.8 x 3.8 cm.
Main crystal: 0.6 cm.
Found in ca. 1986.

Col. J. Astor (Barcelona).
Type Locality


 

RM2462   Erythrite

Bou Azzer, Tazenakht, Ouarzazate, Drâa-Tafilalet, Morocco

Erythrite tabular crystals, with intense purple colour and brilliance. About matrix.


Size: 3.8 x 2.8 x 1 cm.
Found in ca. 1987.

Col. J. Astor (Barcelona).


 

RM2410   Hyaline quartz

Coronel Murta, Minas Gerais, Brazil

Group of very elongated quartz crystals, with developed prisms and well-defined rhombohedral terminal faces. Very transparent. Some faces of the prism show growth oriented cavities.


Size: 6.9 x 4.6 x 3.5 cm.
Main crystal: 6.9 x 1 cm.

Col. J. Astor (Barcelona).
 

RM1229   Baryte with calcite

San Pedro mine, Sierra de Enmedio, Almendricos, Lorca, Murcia, Spain

Aesthetic group of well-developed baryte crystals from this Murcian locality. They are disposed forming a "open-book" shape with parallel growth. They stand out as being covered with small, bright and transparent crystals of calcite, some chalcedony, peppered by small crystals of goethitized pyrite and manganese oxydes. A piece of an unusual locality not easy to find in the mineral market.


Size: 8.7 x 5.8 x 4.4 cm.
Main crystal: 35 x 25 mm.
Found in 2011.

Price: 40 €Buy
 

RM1263   Japan law quartz twin

Mundo Nuevo mine, Huamachuco, Sanchez Carrión, La Libertad, Peru

Druse of brilliant hyaline quartz crystals, with transparence and well-developed prism. Some of them showing the Japan-law twin. Well defined, flattened, transparent to translucent. From a classic Peruvian locality which was inaccurated located in Pasto Bueno district, Pallasca province.


Size: 6.8 x 3.8 x 3.3 cm.
Main crystal: 13 x 9 mm. (macla/twin)
Found in 2015.

 
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