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RM2177   Fluorite

Group of octahedral fluorite crystals, of intense green color and in stepped growths. From the classic Berta Quarry, in which it is now totally forbidden to extract minerals.

Size: 2.8 x 2.4 x 1.8 cm.
Fluorescent under long wave UV
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RM2169   Banded flint
SiO₂
  -  4. Óxidos e hidróxidos

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.

Size: 7.0 x 6.0 x 5.9 cm.
Found in 1960's.
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RM2175   Smoky quartz
SiO₂
  -  4. Óxidos e hidróxidos

Smoky quartz crystal, good size, with defined faces and edges. It presents small nicks without affecting its aesthetics. Smoked tone, very uniform and with transparence. It comes from the formed collection Manchion (Barcelona) and in the attached information indicates that it was collected in the Montseny massif, which makes it interesting since there are not many specimens in collections from this mountains. With minor feldspar matrix.

Size: 5.7 x 2.2 x 1.8 cm.
Found in 07/1985.
#175 Col. Manchion (Barcelona).
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RM2091   Cuprian dundasite

Dundasite is an unusual lead and aluminum hydroxycarbonate, which is formed as a secondary mineral in the oxidation zone of lead deposits. This Pyrenean locality is very interesting for its diverse paragenesis. In this specimen we observe under the magnifying glass numerous and aesthetic aggregates of dundasite as acicular crystals of silky luster, some slightly bluish due to their Cu content, contrasting on the matrix.

Size: 3.1 x 2.4 x 2.3 cm.
Found in 2018.
Analyzed specimen with report
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RM2090   Cuprian dundasite

Dundasite is a rare lead and aluminum hydroxycarbonate, which is formed as a secondary mineral in the oxidation zone of lead deposits. This Pyrenean locality is very interesting for its diverse paragenesis. In this specimen we observe under the magnifying glass numerous and aesthetic aggregates of dundasite as acicular crystals of silky luster, some slightly bluish due to their Cu content, contrasting on the matrix.

Size: 3.2 x 2.4 x 1.3 cm.
Found in 2018.
Analyzed specimen with report
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RM2089   Cuprian dundasite

Dundasite is an unusual lead and aluminum hydroxycarbonate, which is formed as a secondary mineral in the oxidation zone of lead deposits. This Pyrenean locality is very interesting for its diverse paragenesis. In this specimen we observe under the magnifying glass numerous and aesthetic aggregates of dundasite as acicular crystals of silky luster, some slightly bluish due to their Cu content, contrasting on the matrix.

Size: 2.5 x 1.8 x 1.4 cm.
Found in 2018.
Analyzed specimen with report
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RM2084   Fluorite

Rich group of cubic fluorite crystals, very sharp, transparent and with a greenish to yellow tone very characteristic of these fluorites. This specimen is from the mines of Sant Marçal (also called of the Matagalls Mt.), located in the massif of El Montseny. Nowadays not many samples are seen with this quality. A classic of the Catalan Mineralogy.

 

Size: 9 x 8 x 5.5 cm.
Main crystal: 2.7 x 2.3 cm.
Fluorescent under long wave UV
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RM2039   Octahedral fluorite

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.

Size: 6.5 x 4.4 x 4.6 cm.
Main crystal: 0.8 cm.
Fluorescent under long wave UV
RM2033   Smithsonite

Specimen formed by small rounded crystals of smithsonite, with an intense pink color. These specimens stand out for the town and its intense color. The mine is now closed and in the process of restoration to make a part visitable.

Size: 8.8 x 4 x 3.4 cm.
Found in 2018.
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RM2012   Calcite
Ca(CO3)
  -  5. Carbonatos y nitratos

Group of sharp calcite crystals, with rhombohedral flattened shape, translucent. From a unusual locality not well represented in collections.

Size: 5 x 4.2 x 3.5 cm.
Main crystal: 2.4 cm.
Found in ±1980.
Fluorescent under long wave UV
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RM2011   Schorl

Good schorl specimen from the clssic locality of Cap de Creus, Girona. Some crystals showing a developed and faceted prism and terminal faces, some of them with good thickness. From this locality it is very difficult to obtain specimens if they do not appear in old collections, as it is the case, since it is totally forbidden to collect specimens in the area. This one belongs from the Manchion Collection and it is accompanied by the handwritten label.

Size: 7.3 x 7 x 4.6 cm.
Main crystal: 2.1 cm.
Found in ±1980.
Classic locality
Reserved
RM2009   Vesuvianite

These mines are located in the heart of Massís del Montnegre, in Catalunya, and it is a classic for mineral collectors. The "vesuvianas" are found mainly in the outer zone of the mines. In this old specimen we can enjoy a radial aggregate of vesuvianite crystals, of good size and with the beige-greenish color that characterizes them in this locality. In a small vug we can see greenish transparent and well formed crystals of the species.

Size: 9 x 7 x 4 cm.
Main crystal: 2.3 cm.
Col. Manchion.
Classic locality
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RM2006   Tremolite
◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
  -  9. Silicatos

Radiated aggregates of Tremolite from this classic Catalan locality. Specimens were found in a Cambrian-Ordovician marbles with calc-silicate levels. Outcrops at an altitude of 2700-2800 m, near Pic de l'Infern (Hell's Peak), 2870 m.

Size: 6.5 x 5.3 x 2.4 cm.
Main crystal: 1.8 cm.
Col. Manchion.
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RM2002   Gahnite

In this old specimen from Manchion collection we can observe several octahedral gahnite crystals with defined faces and edges, a uniform deep blue color and accompanied by yellowish sphalerite. Such samples are very difficult to obtain and only from time to time appears a classic like this, only from old collections.

Size: 6.5 x 5.3 x 2.8 cm.
Main crystal: 5 mm.
Col. Manchion.
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RM2001   Diopside

Rich aggregate of diopside crystals, with an intense apple green color. In the cavities we can observe the shapes of the lanceolate prisms. From a classic Catalan mine, from which it is difficult to obtain samples. A local curiosity.

Size: 6.3 x 3.5 x 2.8 cm.
Col. Manchion.
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RM1998   Greenockite

Curious specimen of greenockite of this classic locality of the Catalan mineralogy. Under loupe, aggregates of intense yellow color are observed, with reflections of what could be crystalline faces. This cadmium sulphide is a product of the alteration of rich Cd sphalerite. It is impossible to get specimens today.

Size: 4.5 x 3.2 x 2.8 cm.
Found in ±1985.
Col. Manchion #398.
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RM1991   Almandine with schorl and feldspar

An old piece from el Cap de Creus (Creus Cape), in Girona. It presents different almandine crystals, with colour between pink to orange, some altered, others faceted, which are included in a matrix of pegmatite. They are accompanied by black schorl. Nowadays it is forbidden to collect anything in that area and it is difficult to find available pieces.

Size: 6.5 x 4.5 x 3.8 cm.
Main crystal: 6 mm.
Found in ±1978.
Col. Manchion.
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RM1974   Čechite

These specimens were found in a outcrop close to Maria Magdalena mine, close to the beautiful town of Ulldemolins (Tarragona, Catalonia). Probably, these crystals are the most defined crystals of Čechite worldwide. They are brilliant, black color and show a tabular shape defined by different order orthorhombic prisms and pinacoidal faces. Disposed very aerial on a fluorite matrix.
Čechite is very rare lead iron vanadate that is only found in a few places in the world and it is the first citation in the Iberian peninsula.
SEM-EDS and EPMA analysis show that, in some cases, on the crystal surface there is Cu2+ has been formed but the crystal is pure PbFe2+(VO4)(OH). In most specimens (all) from other localities the presence of manganese is important, but these specimens are Mn free. We will send more details to the buyer.

Size: 4 x 2 x 1.8 cm.
Main crystal: 1 mm.
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RM1947   Heterosite-Purpurite

These samples of heterosite come from a classic area for the Catalan mineralogy such as Cap de Creus, in Girona. They belong from a former collection and were collected, according to the owners, by the 70s of the last century. Currently, in the Cap de Creus area, it is strictly forbidden to collect absolutely anything. These samples show aggregates of brownish-black tones, with a certain brightness, with layers of violet color and embeded in a pegmatitic matrix. No acid applied.
Bareche, in his work "Els Minerals de Catalunya, Segle XX" (2005), indicated the presence in this area of several rare Mn and Fe phosphates. He indicated that the purpurite was found in a single outcrop as small masses of violet and brownish color, along with heterosite from brown to black. From these specimens, several fragments of violet tone have been analyzed. The results have indicated that iron is predominant, with a ratio Fe:Mn, 2:1, consistent with heterosite. We do not rule out that purpurite (Mn> Fe) could be present, as member of heterosite-purpurite series.

Size: 7.8 x 5.8 x 3 cm.
Found in ±1970's
Classic locality
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RM1948   Heterosite-Purpurite

These samples of heterosite come from a classic area for the Catalan mineralogy such as Cap de Creus, in Girona. They belong from a former collection and were collected, according to the owners, by the 70s of the last century. Currently, in the Cap de Creus area, it is strictly forbidden to collect absolutely anything. These samples show aggregates of brownish-black tones, with a certain brightness, with layers of violet color and embeded in a pegmatitic matrix. No acid applied.
Bareche, in his work "Els Minerals de Catalunya, Segle XX" (2005), indicated the presence in this area of several rare Mn and Fe phosphates. He indicated that the purpurite was found in a single outcrop as small masses of violet color, along with heterosite from brown to black. From these specimens, several fragments of violet and brownish tone have been analyzed. The results have indicated that iron is predominant, with a ratio Fe:Mn, 2:1, consistent with heterosite. We do not rule out that purpurite (Mn> Fe) could be present, as member of heterosite-purpurite series.

Size: 7.0 x 4.7 x 1.6 cm.
Found in ±1970's
Analyzed specimen with report
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RM1940   Octahedral fluorite

A group of fluorite crystals those, at first glance, seem just octahedra, but if you take a look carefully you will see complex terminations. Green color and dull luster. Acompanied by small quartz crystals. A classic from the former Manchion (Barcelona) collection, collected by himself in January, 1986.

Size: 7.8 x 6 x 5.8 cm.
Main crystal: 8 x 8 mm.
Found in 01/1986.
Fluorescent under LW-UV and SW-UV lights
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RM1931   Microcline
K(AlSi₃O₈)
  -  9. Silicatos

Rich group of microcline crystals, some of them with the Mannebach twin, well defined. Specimen belonging to the collection of Sr. Manchion, acquired at the Sant Celoni mineral show in March 1985. A piece with history.

Size: 7 x 5.5 x 2.8 cm.
Main crystal: 15 mm.
Found in ±1985.
Col. J.M. Manchion, Barcelona. Num. 159.
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RM1703   Smoky quartz with microcline and albite
SiO₂
  -  4. Óxidos e hidróxidos

Group of smoky quartz crystals on a matrix of microcline crystals covered by albite. They present some nick but for me it is a very good and historical specimen. From a classic Catalan locality and from the Daunis collection (Barcelona).

Size: 10 x 9.5 x 5.5 cm.
Main crystal: 5.5 x 2.8 cm.
Found in ±1970.
Col. Daunis (Barcelona)
Classic locality
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RM1704   Smoky quartz with microcline and albite
SiO₂
  -  4. Óxidos e hidróxidos

Rich cluster of smoky quartz crystals on a matrix of microcline crystals covered by albite. They present some nick but for me it is a very good and historical specimen. From a classic Catalan locality and from the Daunis collection (Barcelona).

Size: 10.5 x 8 x 6 cm.
Found in ±1970
Col. Daunis (Barcelona)
Classic locality
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RM1846   Augite
(Ca,Mg,Fe)2Si2O6

Very sharp augite crystal of good size, very rich in faces, defined and bright. Intense black color. It is an old piece from the Manchion collection and comes from the well-known volcanic region of Olot, in Catalonia, where it is strickly forbidden to collect mineral samples.

Size: 3 x 2.5 x 2.2 cm
Found in 09/1984
Col. J.M. Manchion, Barcelona. Nr. 252, 09/1984.
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