Rich group of very sharp metatorbernite crystals, with an intense green grass color, showing the combination of the first and the second order dipyramids, truncated by pinacoidal faces. Its intense color gives a nice contrast with the white quartz matrix. Large open cast mines ans small prospects of kaolinite with some quartz veins in which torbernite crystals have been found. We could say that this locality is included in the most worldwide important torbernite localities due to the crystal quality, size and multiple habits.

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Group of very sharp metatorbernite crystals, with an intense green grass color, showing the combination of the first and the second order dipyramids, truncated by pinacoidal faces. Its intense color gives a nice contrast with the white quartz matrix. Large open cast mines ans small prospects of kaolinite with some quartz veins in which torbernite crystals have been found. We could say that this locality is included in the most worldwide important torbernite localities due to the crystal quality, size and multiple habits.

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Group of very sharp metatorbernite crystals, with an intense green grass color, showing the combination of the first and the second order dipyramids, truncated by pinacoidal faces. Its intense color gives a nice contrast with the white quartz matrix. Large open cast mines ans small prospects of kaolinite with some quartz veins in which torbernite crystals have been found. We could say that this locality is included in the most worldwide important torbernite localities due to the crystal quality, size and multiple habits.

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Group of very sharp metatorbernite crystals, with an intense green grass color, showing the combination of the first and the second order dipyramids, truncated by pinacoidal faces. Its intense color gives a nice contrast with the white quartz matrix. Large open cast mines ans small prospects of kaolinite with some quartz veins in which torbernite crystals have been found. We could say that this locality is included in the most worldwide important torbernite localities due to the crystal quality, size and multiple habits.

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Rich group of very sharp metatorbernite crystals, with an intense green grass color, showing the combination of the first and the second order dipyramids, truncated by pinacoidal faces. Its intense color gives a nice contrast with the white quartz matrix. Large open cast mines ans small prospects of kaolinite with some quartz veins in which torbernite crystals have been found. We could say that this locality is included in the most worldwide important torbernite localities due to the crystal quality, size and multiple habits.

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A rich group of scalenohedral calcite crystals, very acute, translucent, of good size and from this classic Andalusian locality. Not very common in these mines. Under the ultraviolet (LW) light they present a very remarkable red-pink fluorescence.

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Groups of fan-shaped epidote crystals, very bright and with transparency and disposed very aerial on the ophite matrix. Intense green color, brightness and transparence. It is currently prohibited to collect in this area. A sample with a good size (12 cm.) and excellent quality, from the classic town of Casterner.

An excellent specimen formed by numerous epidote crystals, from the classic locality of Casterner. Fan-shaped crystals, they are very bright and with an excellent transparence. Better in "person" than in the pictures. Samples of this quality are already few. It is currently forbiden to collect in the area.

An excellent specimen formed by numerous epidote crystals, from the classic locality of Casterner. Fan-shaped crystals, they are very bright and with an excellent transparence. Better in "person" than in the pictures. Samples of this quality are already few. It is currently forbiden to collect in the area.

Group of huge size orthoclase crystals, showing the complex faces. Nice slightly orange color and defined edges and faces. It was collected many years ago near of the Montseny massif; this area was well known for orthoclase mineral collectors. A classic from a classic Catalan collection.

These specimens of banded flint were collected decades ago in the area of El Brull, in the Montseny massif, and identified as agate. They appear in nodules and veins, embedded in a siliceous limestone, presenting bands of gray tones, between light to dark gray. These kind of striped flind are well know in jewelery, and very appreciated. It is a unique curiosity of the Catalan mineralogy of many years ago.

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Rich group of pyrite crystals, isolated and disposed in the original marl matrix. Exceptional luster and some of them show flattened prismatic shapes. From a classic mine for the Spanish mineralogy. Good size specimen.

In this specimen we can enjoy several groups of wire silver, with showy wire to skeletal growths and metallic luster. Accompanied by black acanthite crystal aggregates. From a classic locality for the Catalan and Spanish mineralogy. A good chance to represent this locality in your collection. Nowadays it is very difficult find specimens, only from old collections...

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In this specimen we can enjoy several groups of wire silver, with showy wire to skeletal growths and metallic luster. Accompanied by black acanthite crystal aggregates. From a classic locality for the Catalan and Spanish mineralogy. A good chance to represent this locality in your collection. Nowadays it is very difficult find specimens, only from old collections...

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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. 

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A rich group of baryte crystals, with staggered stalactite growths, intense white, with defined faces and edges and forming a very displayable and aesthetic "crest". A Spanish classic, different from the usual.

45 €

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It is a very old specimen formed by prismatic to tabular crystals of celestine, with a radial disposition and filling a cavity in calcite. The matrix is a fossil coral. Fluorescent under LW-UV light. Good size. A classic of the Catalan mineralogy of old times...

This kind of specimens are which make the love for minerals is being reinforced. In this piece, three very interesting magnesium species, two hydroxilcarbonates and one hydroxide coexist. On the one hand we observe some aesthetic and brilliant aggregates of foliaceous crystals of dypingite, forming rosettes, of intense white color, although they are colorless. They are accompanied by sheaves of flattened crystals of hydromagnesite, between translucent to transparent, colorless (they are similar to aragonite). All of them are disposed on a rock matrix covered with a layer with botrioidal forms, from blue to gray, of brucite. A Catalan piece that is hard to find today, with unusual species and quality.

These are the most fine quality romanèchite specimens ever found in Spain. These botryoidal aggregates show the velvet surface formed by several small romanechite/pyrolusite crystals (see SEM photo). These specimens has not been treated, only fresh water. Romanèchite shows in fresh fracture the classic grey color. You can observe small but brilliant crystals of pyrolusite on the stalactitic surface. Analysis will be send to the buyer.

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These are the most fine quality romanèchite specimens ever found in Spain. These botryoidal aggregates show the velvet surface formed by several small todorokite/romanechite/pyrolusite crystals (see SEM photo). These specimens has not been treated, only fresh water. Romanèchite shows in fresh fracture the classic grey color. You can observe small but brilliant crystals of pyrolusite on the stalactitic surface. Analysis will be send to the buyer. Good size.

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This old specimen, of which supplier didn't had no more info about its original owner, was accompanied by a label where we can read: "Goethite pseud. Magnesite". Consulting the works "Minerales de España" by Salvador Calderón (1910) and the modern version of Miguel Calvo (2009), they mention the presence of pseudomorphic substitutions of goethite (limonite) after siderite in this Aragonese locality: Ojos Negros mines. They preserve the rhombohedral form or, less commonly, as "(...) lenticular pseudocrystals or in the form of short prisms with a hexagonal section and rounded faces that can exceed one centimeter in length (...)" (Calvo, 2009).
Therefore we can deduce that what we are showing is one of these curious pseudomorphs of goethite after siderite or magnesite. A good sized specimen, full of crystallographic history, chemistry and a classic Spanish locality.

Group of sharp andradite-grossular crystals, with an exceptional brilliance and a brown color, near to black. They show clear faces of the dodecahedron and the trapezohedron. Disposed on the matrix, contrasting with the white albite and small octahedral crystals of magnetite. A sample of the former Daunis collection; from a Spanish locality not well represented in collections.

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These aragonite pineapples are very rare. This specimen shows a large group of pseudohexagonal crystals, with a tone between gray, violet to brownish, translucent. Dedicated to the aragonite collectors. It comes from the Daunis collection and was collected by him personally in this classic locality.

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. Dedicated to the aragonite collectors. It comes from the Daunis collection and was collected by him personally in this classic locality.

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. Dedicated to the aragonite collectors. It comes from the Daunis collection and was collected by him personally in this classic locality.