Very rich specimen formed by several rosettes of tabular to lenticular azurite crystals, intense color and contrasting on the matrix, with quartz. Its origin is due to the alteration of the chalcopyrite and are disposed on a silicified limestone matrix. Very good piece for the locality.

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Radial aggregates of ferro-pargasite with an intense luster and very deep green colour. Accompanied in the granatite matrix with epidote crystals and orange calcite. The ferro-pargasite of this deposit is the dominant amphibole in the granatite fissures, although it was classified as hastingsite according to data provided by the exploiting company (according to Miguel Calvo in Minerales de España, vol. IX); for this reason surely the label that accompanies this sample classifies it as hastingsite.

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Fibrous aggregate of tremolite crystals, very brilliant and with an olive green colour. They are accompanied by prismatic crystals of darker green actinolite and orange calcite. Good size and representative for the locality and the species. The Manuel-Mercedes open pit is embedded in the granitic intrusions that were accompanied by contact metamorphism and gave rise to the formation of the skarn, with important deposits of magnetite.

A very esthetic and good size specimen formed by several globular aggregates of acicular crystals of rosasite, of bluish green color, some partially covered by bright and transparent calcite crystals. It is accompanied by smithsonite and in a goethite matrix.

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This sample has, for me, both a collection and scientific interest. It is a sample of cinnabar "veins" in its host rock, which has been perfectly polished to be able to see the structures of this breccia. Intense red colors of cinnabar snaking between fragments of quartzite impregnated with cinnabar, isolated crystals of pyrite and veins of dolomite. A true curiosity from Almaden to study under the magnifying glass.

Agatized coral with marked bands. In a very visible coral matrix. Filled inside with botryoidal and banded chalcedony. The sparkly, translucent botryoids and banding have a pleasing variety of honey-brown and creamy colors. Very aesthetic and unusual in the marked. Fluoresces in a light-blue color under a long wave fluorescent light.

Excellent specimen formed by very numerous aggregates of pyrargyrite crystals. Intense brightness, with red transparence, crystals are very rich in faces. We have analyzed some of the crystals and we will send the results to the buyer. For display, but also to observe/enjoy under the magnifying glass.

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Good botryoidal specimen of hematite. In the back side we observe very esthetic growths of different tones, fibrous, of hematite. These pieces are usually cleaned at the origin with sand, but in this case and because of the luster, we do not believe that it was. Very curious Moroccan novelty.

Excellent specimen of fluorapophyllite-(K) crystals, doubly terminated, very aerial disposed, with a green color with zoning, and tetragonal forms of the prism and the dipyramid very visible, with parallel growths. They are disposed contrasting with a snowy white matrix of lanceolated crystals of heulandite-Ca. A gemmy specimen.

This specimen shows an interesting group formed by a bluish, very bright botryodal chalcedony, which is partially covered by aggregates of calcite crystals, flattened, in axial growth, and with an excellent transparency and brightness. A worthy specimen of this near to disapeared quarry, close to the San Valentín quarry. A very aesthetic piece of this classic Murcia mining area.

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Group of fluorite crystals showing sharp edges and cube faces with polysynthetic growths. Good color, intense between purple to violet, depending on the incident light and with geometric colour zoning.

Group of fluorite crystals showing sharp edges and cube faces with polysynthetic growths. Good color, intense between purple to violet, depending on the incident light and with geometric colour zoning.

Rich group of fan-shaped tabular erythrite crystals in parallel growth; very brilliant, of intense color and disposed very aerial on the matrix with quartz crystals. A fine specimen from Bou Azer.

Very curious specimen formed by several cubic crystals of halite, some with hoppered growth forms, bright and translucent. A very aesthetic neoformation of these "salinas" (saltworks). Although it is believed that the Romans, in the s. I AD, they already extracted salt from the area, the saltworks of Imón were built in the 10th century and have been exploited intermittently for centuries. In 2015 they returned to production with the construction of new pools of enormous dimensions.

In the eastern part of the beach of Lapari there are the known septaria of Deba. The reef may have about 15 m, but it is not distinguished from the rest of the marly formation of the black flysch of Deba beach. The first publications on the septaria of Deba date from 1958. The upper part of the site has been totally destroyed by works, and in the part of the beach, foreign and local collectors collected numerous specimens. Currently this area has been declared of special protection within the coastal biotope Deba-Zumaia so the collection of septaria is absolutely prohibited [link]. Polished section.

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Aesthetic cluster of greenish andradite crystals, very well defined, bright and slightly iridescent. From Stanley Butte, Arizona, classic locality for these specimens. No damage to any of the main crystals.

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Globular aggregates formed by acicular crystals of rosasite, with colours between deep green and light bluish green. Very aesthetic and disposed on a matrix of goethite. From this classic Mexican mine.

In this specimen, we observed some sulfide aggregates very characteristic of Las Cruces mine. They were partially covered with calcite and under it appear groups of very brilliant chalcocite crystals. But the most interesting part of this specimen are the small, very brilliant crystals those cover sulphides. It is an unusual species: Luzonite. Luzonite is a rare copper sulfoarsenide. I have made the relevant analysis that yields consistent results: S 35.19%, Cu 41.82%, As 22.99% (%wt). You can find more information at espiadellabo.com.

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Druse of very sharp baryte crystals showing developed and striated prismatic faces, truncated by pinacoids. The crystals are translucent, and color varies between colorless to yellowish. Excellent brilliance. Similar specimens were classified, many years ago, as hokutolite (a lead-rich baryte variety) but further analysis showed that there was only a minor lead content.

Druse of very sharp baryte crystals showing developed and striated prismatic faces, truncated by pinacoids. The crystals are translucent, and color varies between colorless to yellowish. Excellent brilliance. Similar specimens were classified, many years ago, as hokutolite (a lead-rich baryte variety) but further analysis showed that there was only a minor lead content.

Fan-shaped aggregates of excellent roweite crystals, beige orange colour, defined, good size and with quality for this species. Roweite is a rare calcium and manganese borate. They are accompanied by white hexagonal prismatic crystals of johnbaumite, up to 7 mm, excellent for the species. Johnbaumite is a very rare calcium arsenate, the arsenic analog of hydroxylapatite. In a matrix with green andradite and transparent colorless pentahydroborite. A very complete specimen, with very rare and well crystallized species.

Group of sharp isolated octahedral fluorite crystals, from translucent to transparent. They show an interesting slight apple green color. They are accompanied by small quartz crystals. On a granite matrix. This matrix is classic for modern specimens and comes from low levels of the Berta quarry.

Group of rhodochrosite crystals with a uniform pink color, with well-defined rhombohedron echeloned and scalenohedron forms. Good gemmy transparence. They are accompanied by other smaller rhodo crystals. On a solid matrix with quartz crystals with inclusions and manganese oxides.

A very aerial malachite aggregate, showing fibrous crystals, intense colour, with zoning, and good luster. On a matrix with dolomite small crystals. A very aesthetic specimen from this classic Moroccan mines.

Really good specimen from the high Swiss mountains of the Galenstock area, 3586 m., known for its smoky quartz. This good sized piece shows several of them, with excellent transparence, very uniform smoky tone, with defined faces and edges and partially covered with 'chlorite'. They are accompanied in the matrix with numerous crystals of adularia (variety of feldspar K), well defined. A piece for the display.