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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Group of blue quartz crystals, bright, some of them forming complex groups and other ones isolated, doubly terminated. They show short prisms along with developed terminal rhombohedral faces. Intense blue gray color due to amphibole inclusions. The matrix is partially covered with magnesium-riebeckite fibers. Very aesthetic specimen.

These hematite specimens belong from ancient finds (ca 1980s) in a mine located on the property of the Piquín farmhouse. In this huge size sample we can see an aesthetic botryoidal aggregates, with an exceptional luster. Even botryoidal "negative" cavities are observed, inward. In the fracture zones of the specimen, radial fibrous aggregates forming botrioids are revealed. A piece of quality without equal and very difficult to find nowadays.

Druse of trapezohedral crystals of andradite from this classic Spanish locality. Intense brilliance, with colors between brown to reddish. On a granatite with epidote. This is a specimen with pedigree from the Gustav Beck collection.

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Very aesthetic stalactic-botryoidal formation of goethite, with some iridescence. This specimen does not show those colors seen in the samples of this locality since it has not been manually husked. It is presented in the original shape with which it appears in the deposit, nowadays very difficult to find.

Almandine crystal group, rich in faces, with forms of the dodecahedron, and rounded edges. Partially covered by gold mica. A classic of Spanish mineralogy, nowadays very difficult to see.

Near to a floater, this specimen shows tabular crystals of baryte in parallel growth, in book-shape, very brilliant, transparent and richly faceted. Between colorless to slightly gray due to inclusions. It comes from a locality that is rarely represented in collections (also in Spanish ones).

Huge size almandine crystal, rich in faces, with forms of the dodecahedron, and rounded edges. A classic of Spanish mineralogy, nowadays very difficult to see.

Good sized almandine crystal, with defined faces, with forms of the dodecahedron and rounded edges. It is partially coated by mica. It presents molds of contact with other crystals those growth with. A former specimens, nowadays very difficult to get, a classic for the Spanish mineralogy.

Almandine crystal, rich in faces, with forms of the dodecahedron, and rounded edges. A classic of Spanish mineralogy, nowadays very difficult to see.

Druse of small torbernite crystals forming rossetes of tabular crystals with a green color.

A very rich group of goethitized pyrite crystals, covered by a thin layer of limonite, from this classic Spanish locality. Defined crystals and orange color. Good size specimen.

An aesthetic globular aggregate of prehnite, disposed very aerially on a matrix covered by several needles of actinolite. Translucent, with a green color with yellowish tones. From a classic Spanish locality.

Curious specimens formed by numerous slightly yellow prismatic gypsum crystals (var. selenite) very transparent and on which have been deposited small cubic halite crystals, some of them show hoppered growth, brilliant and translucent to white color. A unique neoformed and very aesthetic piece.

A very rich group of prismatic crystals, some almost acicular, of brochantite with an intense green colour and good brilliance and transparence. Nice to be displayed and enjoyed under magnifying glass. Disposed in the baryte cavities. SEM-EDS analysis results will be sent to the buyer.

A very rich group of prismatic crystals, some almost acicular, of brochantite with an intense green colour and good brilliance and transparence. Accompanied by groups of atacamite crystals with tabular shape and thicker prism, with a deep green color and transparence, easy to distinguish. Nice to be displayed and enjoyed under magnifying glass. SEM-EDS analysis results will be sent to the buyer.

Group of very sharp trapezohedral analcime crystals, good brilliance and with the usual transparency for the species. They are disposed in a cavity of the volcanic rock covered by calcite. Very interesting specimen from a poorly represented locality in collections.

Group of rhombohedral calcite crystals with a complex combination showing defined faces and rounded edges. Translucent and very curious waxy luster. On them various prehnite globular aggregates formed by radial growths. A very unusual mineralogical curiosity.

Globular aggregates of prehnite with a delicate light green color. With well defined and very bright crystal terminal faces. We can observe the radial growth on a sectioned aggregate. These brilliant specimens are quite unusual in this closed quarry.

A very rich group of siderite crystals from an extinct locality such as Arteal Tunnel. It occurs as aggregates of lenticular crystals with parallel growths, very bright and deep brown color. With a second siderite generation of small sharp crystals. In fresh fracture green color siderite is observed.

A very rich group of siderite crystals from an extinct locality such as Arteal Tunnel. It occurs as aggregates of lenticular crystals with parallel growths, very bright and deep brown color. In fresh fracture green color siderite is observed. Very aesthetic.

At the beginning of 2014, reviewing some specimens from the Santa Matilde open pit we found into the vugs some groups of lanceolated, fibrous or equidimensional crystals, with pink, beige to white colours, those aroused our interest. After some analysis we could identify as fluorcalcioroméite species (Ca,Na)2Sb5+2O6F,OH), with a small percentage of oxyplumboroméite (Pb2Sb2O7, due to the presence of lead).
Both species belong to the isometric system. But the observed symmetry indicated that they are, highly probable, a pseudomorph after stibnite and/or bournonite crystals. This is the first report of this mineral in the Iberian Peninsula. Nowadays this quarry is completelly filled by rubble. In this specimen we can see some aggregates, one of them predominant, formed by several lanceolated to needle-like crystals, with luster, beige to ocher tone, accompanied by aesthetic baryte crystals. We will send a copy of the analysis (SEM-EDS, XRD) to the buyer.

At the beginning of 2014, reviewing some specimens from the Santa Matilde open pit we found into the vugs some groups of lanceolated, fibrous or equidimensional crystals, with pink, beige to white colours, those aroused our interest. After some analysis we could identify as fluorcalcioroméite species (Ca,Na)₂Sb⁵⁺₂O₆F,OH), with a small percentage of oxyplumboroméite (Pb₂Sb₂O₇, due to the presence of lead). Both species belong to the isometric system. But the observed symmetry indicated that they are, highly probable, a pseudomorph after stibnite crystals. This is the first report of this mineral in the Iberian Peninsula. Nowadays this quarry is completelly filled by rubble. In this specimen we can see two vugs with rich aggregates formed by lanceolated to fibrous crystals, with luster, beige to pink color, accompanied by aesthetic baryte crystals. We will send a copy of the analysis (SEM-EDS, XRD) to the buyer.

At the beginning of 2014, reviewing some specimens from the Santa Matilde open pit we found into the vugs some groups of lanceolated, fibrous or equidimensional crystals, with pink, beige to white colours, those aroused our interest. After some analysis we could identify as fluorcalcioroméite species (Ca,Na)₂Sb⁵⁺₂O₆F,OH), with a small percentage of oxyplumboroméite (Pb₂Sb₂O₇, due to the presence of lead). Both species belong to the isometric system. But the observed symmetry indicated that they are, highly probable, a pseudomorph after stibnite crystals. This is the first report of this mineral in the Iberian Peninsula. Nowadays this quarry is completelly filled by rubble. In this specimen we can see rich aggregates formed by lanceolated crystals, with luster, beige to ocher color, accompanied by aesthetic baryte crystals. We will send a copy of the analysis (SEM-EDS, XRD) to the buyer.

At the beginning of 2014, reviewing some specimens from the Santa Matilde open pit we found into the vugs some groups of lanceolated, fibrous or equidimensional crystals, with pink, beige to white colours, those aroused our interest. After some analysis we could identify as fluorcalcioroméite species (Ca,Na)₂Sb⁵⁺₂O₆F,OH), with a small percentage of oxyplumboroméite (Pb₂Sb₂O₇, due to the presence of lead). Both species belong to the isometric system. But the observed symmetry indicated that they are, highly probable, a pseudomorph after stibnite crystals. This is the first report of this mineral in the Iberian Peninsula. Nowadays this quarry is completelly filled by rubble. In this specimen we can see some aggregates formed by several needle-like crystals, with luster, beige to white color, accompanied by aesthetic baryte crystals. We will send a copy of the analysis (SEM-EDS, XRD) to the buyer.