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RM1517   Fluorite with quartz

Specimen with a good size of fluorite of intense color and sharp faces and edges. It shows cubic forms with polycrystalline growths and a color between violet to purple very intense, with color zoning and transparency.

Size: 10.0 x 9.0 x 8.5 cm.
Main crystal: 36 x 30 mm.
Found in 1980s.
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RM1515   Fluorite with quartz

A very rich group of cubic fluorite crystals, with an intense violet to purple color depending on incident light. With a very aesthetic geometric color zoning. On a matrix covered by several quartz crystals. From old times...

Size: 8.8 x 5.5 x 4.8 cm.
Main crystal: 13 x 13 mm.
Found in 1980s.
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RM1514   Fluorite with quartz

It is a large group of fluorite crystals, with colorful cubic forms with polysinthetic growth on faces, brillinat, transparent to translucent and very intense color between purple to violet (depending on incident light), with geometric zonation. Peppered by small barite crystals. Very aesthetic specimen, with many years, coming from the mining area of Berbes.

Size: 8.5 x 5.2 x 3.8 cm.
Main crystal: 14 x 14 mm.
Found in 1970s.
Excol. Daunis
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RM1513   Cinnabar

This specimenbelongs from an Italian collection. It stands out for a colorful cinnabar crystal, with a good size (12 mm), transparent to translucent. Faceted, bright, intense red color. It is accompanied by several groups of crystals of the same species. A classic smaple with a pedigree, very difficult to see today. From one of the most Spanish classic localities.

Size: 7.7 x 5.8 x 3.5 cm.
Main crystal: 12 x 9 mm.
Found in 1960-70s.
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RM1511   Goethite

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.

Size: 8.3 x 4.5 x 3.0 cm.
Found in 2011.
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RM1476   Hyaline quartz in marble
SiO₂
  -  4. Óxidos e hidróxidos

A high quality and sized specimen from the famous Carrara Marble quarries of Italy. The ancients believed that water solidified in the form of hyaline quartz crystals... Viewing this specimen, its purity, transparence, brilliance and perfection, perhaps we can understand their interpretation. Undamaged crystals and on snowy white marble matrix, partially covered by tiny crystals of calcite. An Italian gemm...

Size: 10.4 x 7.3 x 5.3 cm.
Main crystal: 14 mm.
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RM1474   Normandite with aegirine and analcime

Radial aggregates of normandite, of intense orange color and with transparency. They are disposed in a matrix with aegirine and analcime. Under LW-UV light the white matrix shows some fluorescence with intense orange spots. From the alkaline pegmatites of the Kola peninsula.

Size: 6.5 x 4.5 x 3.0 cm.
Main crystal: 20 mm. aggreg.
Fluorescent under long wave UV
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RM1475   Danburite with chalcopyrite and bornite

A huge size danburite specimen totally different from what we can usually find from this Mexican locality. Formed by a large group of prismatic crystals, which have different faces of the orthorhombic prism, with very defined terminal faces. Good transparency in most crystals, others are translucent. They are disposed on a matrix of good size chalcopyrite crystals, some of them partially covered by iridescent bornite. A museum piece.

Size: 10.0 x 9.0 x 4.0 cm.
Main crystal: 35 x 8 mm
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RM1478   Fluorite with baryte and quartz

Good size specimen with many years, from the mining area of Berbes. It is a "flag", near to a floater, totally covered with small quartz crystals. On them, on both sides of the piece, several cubic crystals of fluorite with polysynthetic growths, interpenetrated between them, but also isolated. Of intense violet color, between transparent and translucent. It is accompanied by aggregates of barite. A piece of quality from tha past times.

Size: 17.0 x 11.5 x 3.5 cm.
Main crystal: 10 x 10 mm.
Found in 1980's.
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RM1473   Atacamite with chrysocolla, calcite, malachite and quartz
Cu2Cl(OH)3

A huge size specimen formed by a rich groups of brilliant and sharp atacamite crystals, showing elongated prisms, intense green color and with transparence. In thsi specimen we have not found clinoatacamite (oops) but under loupe we can enjoy very well faceted crystals, really amazing. Accompanied by scalenohedral calcite transparent crystals and with brilliant quartz that is covering the blue chrysocolla and malachite. A really aesthetic display specimen.

Size: 8.0 x 6.0 x 5.0 cm.
Main crystal: 7 x 0.7 mm.
Found in 2015.
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RM1472   Fluorite with cookeite

These specimens of fluorite are very unusual in the market. Groups of cubic fluorite crystals truncated by octahedron faces, defined, bright and transparent to translucent. There is an aesthetic color zoning, between colorless to slightly greenish with predominant violet tones on the cube faces, a real curiosity. It is accompanied, to add interest if possible, by globular foliaceous aggregates of bright pink cookeite, a member of the chlorite group. Both minerals are very fluorescent under UV-LW light. A good sized display specimen.

Size: 10.7 x 11.0 x 3.8 cm.
Main crystal: 12 x 12 mm.
Found in 2016.
Fluorescent under long wave UV
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RM1466   Pyrolusite and Romanèchite

Bright, very bright aggregates of tabular crystals of pyrolusite, very well defined, and disposed on a matrix of botryoidal romanèchite. They come from a recent find in this classic Murcia mine. Both species have been analyzed and the result will be sent to the buyer. Very aesthetic specimen.

Size: 6.3 x 3.5 x 2.5 cm.
Main crystal: 5 x 3 mm.
Found in 2016
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RM1463   Lazurite (sulphide-rich haüyne)

A fine quality specimen of lazurite from the type locality for the species. It is a crystal with a good size, very aerial and contrasting on the matrix of calcite (marble). It presents an intense blue color, with very defined faces (not polished) of the dodecahedron.
It must be said, to be strict, that these crystals are really haüyne rich in sulphide. According to the published article of Mineralogical Record (Vol. 45, 3), all the analyzed specimens of this locality contain sulphur, however, in nature there is no lazurite with dominant sulphide.
In the mining area several mines are worked. Ladjuar Medam is a generic name meaning "lapis lazuli mine" and therefore can refer to any of the mines in this area.

Size: 5.8 x 5.5 x 4.0 cm.
Main crystal: 21 x 17 mm.
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RM1462   Corundum, var. ruby

A stunning corundum, var. ruby, specimen. Perfectly disposed and contrasting with the white matrix. Very sharp, translucent, brilliant and with a deep reddish color not ususal in this locality. Very fluorescent under LWUV. A perfect gem from India.

Size: 5.5 x 3.0 x 2.5 cm.
Main crystal: 11 x 10 mm
Ex Chris & Agatha Galas collection.
Fluorescent under long wave UV
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RM1461   Calcite
Ca(CO3)
  -  5. Carbonatos y nitratos

Very aesthetic calcite specimen showing groups of scalenohedral sharp crystals, with transparence that allow to see reddish geometric inclusions. On a matrix with chalcopyrite and marcassite. Ver unusual for the locality.

Size: 7.5 x 4.7 x 3.5 cm.
Main crystal: 20 x 10 mm.
Found in 2016
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RM1459   Azurite and Malachite
Cu3(CO3)2(OH)2

Specimens of azurite from the Peruvian mines are very rare and less with the quality of this we propose. There are various cavities in a matrix of goethite, which are covered by malachite botrioids, formed by very thin green needles. Over them several azurite rosette aggregates, isolated crystals also present, with an exceptional brightness and color. The specimen is really aesthetic and from a locality not seen in collections.

Size: 8.4 x 5.0 x 3.2 cm.
Found in 2016
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RM1458   Hutchinsonite with quartz and pyrite

Hutchinsonite is one of the few thallium-containing minerals producing good sized crystals. This specimen shows numerous groups of prismatic crystals of this rare sulphosalt, some are doubly terminated, sheaves or isolated, interpenetrated... With an exceptional luster and reddish reflections. They are disposed on a pyrite matrix with rosettes of small quartz crystals. An exceptional specimen.

Size: 8.0 x 5.0 x 2.1 cm.
Main crystal: 7 mm
Found in 2016.
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RM1469   Tremolite in dolomite
◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
  -  9. Silicatos

Rich group of prismatic elongated tremolite crystals, with defined forms, some doubly terminated, with terminal faces. They are disposed in a dolomite saccharoid matrix. A really fine specimen, good size and from the type locality. From the Ruilbeurs collection. Unusual in the market.

Size: 12.0 x 8.4 x 4.5 cm.
Main crystal: 40 x 7 mm.
Found in 1974.
Localidad tipo / Type locality
Fluorescent under long wave UV
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RM1468   Aragonite
Ca(CO3)
  -  5. Carbonatos y nitratos

A classic of Spanish mineralogy. Pantoja aragonites are known for their arrangement in the cavities of this gray marl, forming groups of prismatic crystals in divergent aggregates and with intense fluorescence under UV-LW light. In this specimen crystals have a very good size and are presented in several cavities in the matrix.

Size: 10.0 x 7.2 x 5.4 cm.
Main crystal: 30 mm diam. aggr.
Fluorescent under long wave UV
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RM1467   Kernite

This huge size kernite specimen is formed by some glassy and translucent cleavage crystals. It is a rare borate, named after the namesake California county where it was discovered. It is extremely rare in sharp crystals. These crystals are not formed in the borate deposit itself, but rather in the tanks that are used to dissolve the borax. Every few years the tanks are shut down for maintenance. Kernite and primary tincalconite crystals are found growing on the large stirring blades and the walls of the tank. From the former Renaud Vochten collection (label will be send to the buyer).

Size: 9.8 x 7.5 x 4.2 cm.
Found in 1986.
Ex-col. Renaud Vochten.
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RM1455   Boltwoodite with calcite
(K,Na)(UO2)(SiO3OH)·1.5H2O

A elongated vug lined with small calcite crystals on which are scatterd some radial clusters of acicular yellow to orange crystals of boltwoodite. This specimen is labeled as Rössing mine but during many years excellent boltwoodite samples were labeled as "Rössing" and thus confused with the Rössing Uranium mine in the area (which never produced any boltwoodite specimens). The correct locality is Goanikontes, a uranium claim 4 km SE of Goanikontes and 27 km E of Swakopmund, at a distance of 40 km from the Rössing Uranium Mine.

Size: 5.3 x 4.3 x 3.0 cm.
Main crystal: 4 mm.
Found in 1990's
Fluorescent under long wave UV
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RM1454   Metatorbernite with smoky quartz

Group of isolated and 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. We could say that this locality is included in the most worldwide important torbernite localities due to the crystal quality, size and multiple habits. Rare on the market.

Size: 6.5 x 3.8 x 3.4 cm.
Main crystal: 2 x 2 mm.
Found in 1980's.
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RM1451   Almandine

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.

Size: 5.0 x 4.0 x 3.5 cm.
Found in 1973.
Collected by Marçal Llòria.
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RM1452   Fluorite with cookeite

These specimens of fluorite are very unusual in the market. Groups of octahedral fluorite crystals truncated by cube faces, defined, bright and transparent to translucent. There is an aesthetic color zoning, between colorless to slightly greenish with predominant violet tones on the cube faces, a real curiosity. It is accompanied, to add interest if possible, by globular foliaceous aggregates of bright pink cookeite, a member of the chlorite group. Both minerals are very fluorescent under UV-LW light.

Size: 6.3 x 5.4 x 4.8 cm.
Main crystal: 32 x 30 mm.
Found in 2016.
Fluorescent under long wave UV
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RM1453   Sepiolite

This specimen of sepiolite comes from what is considered the most important deposit of this mineral in the world.

Size: 5.5 x 4.5 x 3.0 cm.
Ex-col. Gustav Beck
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