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RM414   Native Copper
Cu
  -  1. Elements

Laminar growth of deformed and flattened native copper crystals. Its color is the original and I preferred not alter it by chemical methods. In some of the branches we can see the brilliance of copper, but the rest has this "coppery" tone. It is disposed very aerial on the rocky matrix.
Nowadays the mine is flooded, so get new specimens is quite complicate, if not impossible. A classic mineral specimen from this “Spanish pyrite belt” locality.

Size: 6,6 x 3,3 x 2,0 cm.
Found in 1990-92
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RM422   Copper
Cu
  -  1. Elements

Arborescent growth of deformed and flattened native copper crystals. Some of them, smaller ones, still show complex cubic forms. Its color is the original and I preferred not alter it by chemical methods. In some of the branches we can see the brilliance of copper, but the rest has this "coppery" tone. It is disposed very aerial on the rocky matrix.
Nowadays the mine is flooded, so get new specimens is quite complicate, if not impossible. A classic mineral specimen from this “Spanish pyrite belt” locality.

Size: 4,0 x 3,2 x 1,4 cm.
Found in 1990-92
Precio reducido-Reduced price 65€
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RM398   Copper
Cu
  -  1. Elements

Arborescent growth of deformed and flattened native copper crystals. Some of them, smaller ones, still show complex cubic forms. Its color is the original and I preferred not alter it by chemical methods. In some of the branches we can see the brilliance of copper, but the rest has this "coppery" tone. It is disposed very aerial on the rocky matrix.
Nowadays the mine is flooded, so get new specimens is quite complicate, if not impossible. A classic mineral specimen from this “Spanish pyrite belt” locality.

 

 

Size: 6,1 x 5,0 x 2,7 cm.
Main crystal: 4 x 3,7 cm. (agreg.)
Found in 1990-92
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RM434   Pyrolusite

Group of very sharp pyrolusite tabular crystals showing polysynthetic growths, unusual for the species. Good luster, metallic gray color. The echeloned faces gives them a different aesthetics. In the matrix we can observe more classic acicular radiated pyrolusite crystals.
Few specimens were obtained and, at first, it was thought that by their shapes and color tones they were marcasite, but further analysis characterized them as pyrolusite. Probably the best pyrolusite Spanish specimens.

Size: 4,6 x 2,7 x 1,6 cm.
Main crystal: 11 x 10 mm (group)
Found in 03/2011
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RM380   Pyromorphite
Pb₅(PO₄)₃Cl
  -  8. Phosphates, arsenates and vanadates

Group of very sharp pyromorphite crystals with a hexagonal shape and the characteristic color. The crystals fill cavities of the matrix. Mine has became a classic Spanish for pyro.

Size: 3,0 x 2,6 x 2,5 cm.
Main crystal: 7 x 3 mm.
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RM376   Pyromorphite
Pb₅(PO₄)₃Cl
  -  8. Phosphates, arsenates and vanadates

Group of hexagonal pr¡smatic crystals showing a good brilliance, characteristic color and very well defined faces and edges. From a classic Spanish mine.

Size: 6,8 x 6,0 x 4,0 cm.
Main crystal: 8 x 3 mm.
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RM140   Jarosite

Group of flattened tabular jarosite crystals, very sharp and rich in faces, with an intense luster and brown color. We would like to emphasize the transparence and the crystal size.
This sample is from the Arteal tunnel (also known as Santa Bárbara pit), today it is impossible to collect more specimens because tunnel collapsed in first months of 2011.

Size: 7,5 x 6,4 x 1,8 cm.
Main crystal: 2,5 x 2 mm.
Found in 2010
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