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RM611   Hemimorphite

Nice hemimorphite specimen from a classic Basque mine. Mineral is covering with a crystalline crust the cavities of the carbonated matrix. Color varies between blue, green to colorless.

Size: 6,0 x 5,2 x 3,7 cm.
Found in 2008.
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RM607   Globular Fluorite with calcite, quartz and limonite

Curious globular aggregates formed by numerous fluorite octahedral crystals that have grown together, reaching this globular shape. If you look closely under magnification the specimen you can observe different growing phases. So we can see perfect small colorless octahedra, others as groups of a few crystals sharing faces and symmetry, and some with many octahedrons close to this globular shape. Very fluorescent under SW-UV.
This green color is the best ever found for this site, with transparence and brilliance. They are disposed on an matrix of hard porphyry covered by minute quartz crystals, with calcite and goethitized cubic pyrite.

This area is known as Singuerlín (a neighborhood of Santa Coloma de Gramenet city, close to Barcelona) and from 60's collectors has found these globular aggregates with tones between white, yellow or slightly greenish. Then some specimens were analyzed and labeled as gearksutite. More recent analysis did not indicate the presence of this species but only fluorite.

Size: 8,7 x 6,0 x 3,7 cm.
Main crystal: 7 x 7 mm.
Found in 02-03/2013
Fluorescent under LW-UV and SW-UV lights
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RM606   Globular Fluorite with calcite, quartz and limonite

Curious globular aggregates formed by numerous fluorite octahedral crystals that have grown together, reaching this globular shape. If you look closely under magnification the specimen you can observe different growing phases. So we can see perfect small colorless octahedra, others as groups of a few crystals sharing faces and symmetry, and some with many octahedrons close to this globular shape. Very fluorescent under SW-UV.
This green color is the best ever found for this site, with transparence and brilliance. They are disposed on an matrix of hard porphyry covered by minute quartz crystals, with calcite and goethitized cubic pyrite.

This area is known as Singuerlín (a neighborhood of Santa Coloma de Gramenet city, close to Barcelona) and from 60's collectors has found these globular aggregates with tones between white, yellow or slightly greenish. Then some specimens were analyzed and labeled as gearksutite. More recent analysis did not indicate the presence of this species but only fluorite.

Size: 10,0 x 6,5 x 5,2 cm.
Main crystal: 9 x 9 mm.
Found in 02-03/2013
Fluorescent under LW-UV and SW-UV lights
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RM605   Globular Fluorite with calcite, quartz and limonite

Curious globular aggregates formed by numerous fluorite octahedral crystals that have grown together, reaching this globular shape. If you look closely under magnification the specimen you can observe different growing phases. So we can see perfect small colorless octahedra, others as groups of a few crystals sharing faces and symmetry, and some with many octahedrons close to this globular shape. Very fluorescent under LW-UV. This green color is the best ever found for this site, with transparence and brilliance. They are disposed on an matrix of hard porphyry covered by minute quartz crystals, with calcite and goethitized cubic pyrite.

This area is known as Singuerlín (a neighborhood of Santa Coloma de Gramenet city, close to Barcelona) and from 60's collectors has found these globular aggregates with tones between white, yellow or slightly greenish. Then some specimens were analyzed and labeled as gearksutite. More recent analysis did not indicate the presence of this species but only fluorite.

Size: 9,0 x 6,1 x 4,5 cm.
Main crystal: 8 x 7 mm.
Found in 02-03/2013
Fluorescent under LW-UV and SW-UV lights
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RM602   Globular Fluorite with hidrozincite, quartz and limonite

Curious globular aggregates formed by numerous fluorite octahedral crystals that have grown together, reaching this globular shape. If you look closely under magnification the specimen you can observe different growing phases. So we can see perfect small colorless octahedra, others as groups of a few crystals sharing faces and symmetry, and some with many octahedrons close to this globular shape. Very fluorescent under SW-UV.
This green color is the best ever found for this site, with transparence and brilliance. They are disposed on an matrix of hard porphyry covered by minute quartz crystals, with calcite and limonite. also some botryoidal white aggregates of hydrozincite.

This area is known as Singuerlín (a neighborhood of Santa Coloma de Gramenet city, close to Barcelona) and from 60's collectors has found these globular aggregates with tones between white, yellow or slightly greenish. Then some specimens were analyzed and labeled as gearksutite. More recent analysis did not indicate the presence of this species but only fluorite.

 

Size: 8,5 x 5,5 x 3,5 cm.
Main crystal: 7 x 7 mm.
Found in 02-03/2013
Fluorescent under LW-UV and SW-UV lights
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RM600   Globular Fluorite with calcite, quartz and limonite

Curious globular aggregates formed by numerous fluorite octahedral crystals that have grown together, reaching this globular shape. If you look closely under magnification the specimen you can observe different growing phases. So we can see perfect small colorless octahedra, others as groups of a few crystals sharing faces and symmetry, and some with many octahedrons close to this globular shape. Very fluorescent under SW-UV.
This green color is the best ever found for this site, with transparence and brilliance. They are disposed on an matrix of hard porphyry covered by minute quartz crystals, with calcite and goethitized cubic pyrite.

This area is known as Singuerlín (a neighborhood of Santa Coloma de Gramenet city, close to Barcelona) and from 60's collectors has found these globular aggregates with tones between white, yellow or slightly greenish. Then some specimens were analyzed and labeled as gearksutite. More recent analysis did not indicate the presence of this species but only fluorite.

 

Size: 10,7 x 7,2 x 3,8 cm.
Main crystal: 9 x 9 mm (aggr).
Found in 02-03/2013
Fluorescent under LW-UV and SW-UV lights
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RM557   Twinned Calcite with dolomite
Ca(CO3)
  -  5. Carbonides and nitrates

Calcite specimens from la Florida mines are known and valued worldwide. In this sample we have a complex twinned escalenohedron, "doubly terminated", with combination with the rhombohedron. Transparence is excellent, with defined striated faces and delicate edges. It has a delicate yellow color.
These
specimens appeared accompanied by dolomite, at level 6 of this mine. A huge size and excellent specimen from this classic Spanish locality.

 

Size: 10,7 x 7,4 x 4,6 cm.
Main crystal: 6,0 x 3,4 cm.
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RM575   Baryte with Fluorite, Dolomite and Chalcopyrite
Ba(SO4)

Excellent specimen formed by several groups of transparent tabular barite crystals forming globular aggregates, with transparence, brilliance and very sharp faces and edges. Very aesthetically disposed on a fluorite cubic crystals matrix with yellow color and transparence. Accompanied by dolomite saddle-shaped crystals and chalcopyrite. A Spanish classic of the best quality.

Size: 8,8 x 5,5 x 4,0 cm.
Main crystal: 14 x 12 mm. (aggr.)
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RM548   Calcite with Dolomite
Ca(CO3)
  -  5. Carbonides and nitrates

On a matrix covered by small dolomite and some calcite crystals is disposed in a very aerial shape a huge size calcite crystal. It shows well defined faces and edges and the rotation twin. It is not a doubly terminated crystal, it is a 180º twinned crystals. Complete and no damage. With a tastefull silky luster and translucent. A delicate yellowish tone increases its aesthetics on the white matrix. It is not common see these specimens from this classic Spanish mine.

Size: 7,8 x 4,9 x 3,6 cm.
Main crystal: 6,0 x 2,7 cm.
Found in 09/2001.
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RM545   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. Some crystals are isolated increasing its aesthetics. Good transparence and exceptional green color. Acompanied by small quartz crystals.
This specimen belongs to the "old" fluorites from Berta quarry, from an area of ​​sericitized granodiorite. In the fractures, if it was enough space, they grew lining the walls. When quarry worked lower levels fluorite appeared in fresh granite matrix, but mostly without this depth of color. A great speciemen. A classic between classics of our country.

Size: 13,2 x 9,0 x 5,5 cm.
Main crystal: 11 x 10 mm.
Found in 1980's.
Fluorescent under LW-UV and SW-UV lights
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RM543   Fluorite with Quartz

A classic between classics of our country. This is a druse of fluorite crystals those, at first glance, seem just octahedra, but if you take a look carefully you will see vertices truncated by cube. Some crystals show parallel growth and other are interpenetrated. Good transparence and exceptional green color. Acompanied by small quartz crystals.
This specimen belongs to the "old" fluorites from Berta quarry, from an area of ​​sericitized granodiorite. In the fractures, if it was enough space, they grew lining the walls. When quarry worked lower levels fluorite appeared in fresh granite matrix, but mostly without this depth of color. A great specimen.

Size: 7,5 x 5,6 x 3,4 cm.
Main crystal: 9 x 9 mm.
Found in 1980's.
Fluorescent under LW-UV and SW-UV lights
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RM542   Mottramite

A very rich mottramite specimen formed by a layer of minute crystals, very brilliant and with a deep olive green color, near to black on druses, visible only in isolated crystals. A really representative specimen from a classic Spanish gold mines locality.

Size: 7,3 x 6,5 x 3,8 cm.
Ex-col. C. Rewitzer.
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RM535   Celestine
Sr(SO4)
  -  7. Sulfates, chromates, molybdates and wolframates

Tabular celestite crystal with a good size and very defined faces and edges. Very aerial disposed on the matrix. Excellent transparence and brilliance. During many years these crystals were characterized as barite, but later studies showed that they were celestite. From a classic Spanish mine.

Size: 5,7 x 4,0 x 2,3 cm.
Main crystal: 23 x 17 mm.
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RM533   Sphalerite with dolomite
ZnS
  -  2. Sulfides and sulfosalts

Curious aggregate of sphalerite crystals formed by several crystals of this sulfur, good brilliance, with sharp faces and edges and some transparence. Very aesthetically disposed on a matrix of white rhombohedral dolomite crystals. From a former German collection. Different than usual.

Size: 10,5 x 9, 8 x 4,0 cm.
Main crystal: 9 x 2 cm. (aggr.)
German col. / Núm. de colección 585.
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RM525   Pyromorphite with goethite

In this specimen we can observe different groups of pyromorphite crystals showing hexagonal prisms, some of them truncated by the pinacoid and others more acute. The green tone is presented in some crystals with good transparence and color zoning, while others are almost colorless.
In the town of Munébrega were worked some mines where sulphosalts were exploted. Currently they are collapsed. A specimen from a not common Spanish locality.

Size: 5,8 x 3,0 x 2,8 cm.
Main crystal: 4 x1 mm.
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RM534   Orthoclase with clinozoisite

Group of huge size orthoclase crystals, showing the complex faces of the baveno twin together with complex prisms and false rhombohedrons. Nice slightly orange color and defined edges and faces. It is accompanied by small crystals of light green clinozoisite, some quartz and limonitized pyrite. It was collected many years ago near of the Montseny massif; this area was well known for orthoclase mineral collectors. A classic from a classic collection. Mr. Daunis and Mrs. Ruscalleda (wife) collection were specialized in Spanish quartz and orthoclase specimens.

Size: 13,0 x 11,0 x 6,5 cm.
Main crystal: 45 x 43 mm.
Found in 1970's.
Ex-coll. Daunis-Ruscalleda
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RM484   Native Copper with calcite

In this specimen we can observe some groups of native copper crystals, with defined faces and edges, good luster and color. They are disposed on a black layer of pyrolusite and accompanied by some white to translucent calcite flattened rhombohedral crystals. These specimens were collected in a concrete areas of this mine.

Size: 6,0 x 5,3 x 5,0 cm.
Main crystal: 1 x 1 mm.
Found in 2011.
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RM465   Calcite
Ca(CO3)
  -  5. Carbonides and nitrates

Although our country is rich in different forms of calcite, we want to emphasize on this specimen that shows two generations of crystal growth. The first generation calcite clusters have a good size and orange to yellowish pastel tones. With an elongated striated prism and rhombohedral terminal top forms. They are translucent and brilliant, with echeloned growths on faces.
A second generation of small, but transparent and brilliant calcite crystals, is disposed near to perpendicular on the prism of the first generation. A colored and strongly fluorescent calcite from la Cala.

Size: 7,5 x 5,5 x 3,8 cm.
Main crystal: 2,5 x 1,1 cm.
Fluorescent under long wave UV
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RM468   Calcite with dolomite
Ca(CO3)
  -  5. Carbonides and nitrates

Calcite specimens from la Florida mines are known and valued worldwide. In this sample we have a complex twinned escalenohedron, "doubly terminated", with combination with the rhombohedron. Transparence is excellent, with defined striated faces and delicate edges. It has a delicate yellow to orange tone. In this specimen we can see, in the rear, the contact with the dolomite matrix where crystal had growth and an exfoliation, that does not affect the aesthetics of the sample.
These
specimens appeared accompanied by pink dolomite, at level 6 of this mine. On one side there is a hoppered cavity in which it was disposed another group of crystals. A huge size and excellent specimen from this classic Spanish locality.

Size: 8,3 x 5,8 x 4,4 cm.
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RM466   Fluorite with quartz

A very rich group of fluorite crystals with a good size and defined faces and rounded beveled edges. The faces show polysynthetic growths those give it a curious echelonesd forms and accompanied by complex redissolution structures. Really interesting. The color is intensely violet, deep in the inner parts of the crystal and clearer in the outer ones. Good brilliance and transparence when the light strikes on them. A specimen of the past times, rarely seen nowadays. It belonged to an old German collection. Col. Nr. 7.

Size: 9,0 x 8,5 x 3,0 cm.
Main crystal: 9 x 9 mm.
Precio reducido-Reduced price 120€
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RM464   Fluorite with quartz

Group of very sharp fluorite crystals from this classic of the Spanish mineralogy. We can see the cube forms, with defined edges and faces. With clear geometric color zoning, between purple to violet depending on the incident light, more intense in the crystal core. A specimen of fluorite which collector should not miss.

Size: 5,6 x 4,8 x 3,4 cm.
Main crystal: 10 x 9 mm.
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RM445   Scolecite

Scolecite and aerinite specimens from this small Aragonese town are known worldwide. This specimen shows groups of acicular prismatic crystals those form globular aggregates which, when extracted, they allow us to see the radiated growths perfectly. Snowy white color and good luster. Samples of this quality are rare and less nowaday. Usually radiated aggregates appear very flat filling cavities into the dolerite rock.

Size: 5,0 x 4,4 x 2,3 cm.
Main crystal: 21 mm.
Found in ca 1990.
Ex-col. Daunis Barcelona).
Fluorescent under long wave UV
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RM453   Strontianite with limonite

Group of strontianite crystals with an elongated pyramidal habit, forming bundles and aggregates, with color between white to colorless. These specimens appeared in a concrete area of the mine Oriolana (Busot, Alicante) and initially were identified as aragonite or calcite. Further analysis indicated that this was strontianite with some calcium. It indicates that the crystals are zoned and its composition varies within the crystal. They were determined strontianita (majority), celestite, calcite with some quartz (probably due to mechanical mixtures). 

Size: 8,3 x 6,4 x 3,6 cm.
Main crystal: 3 mm (aggreg).
Found in 2011
Fluorescent under long wave UV
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RM436   Quartz with pyrophyllite and Pyrite
SiO₂
  -  4. Oxides and hydroxides

A brilliant quartz crystals from a well known Catalan area, in the Pyrenees, very appreciated for the quality of its hyaline crystals. A rich group of quartz crystals showing a elongated prism and developed and deformed rhombohedral terminal faces. Transparence and brilliance are excellent, with very well defined faces and edges. They are partially covered by small aggregates of pyrophyllite, between colorless to slightly yellow, with some goethitized pyrite. These specimens usually occur in geodes and it is very common find them falled down inside the vug; this specimen shows that one of the crystals has been lost, without affecting the beauty of the whole. This huge size sample is a nice representative of the known Llavorsí's quartz crystals.

Size: 9,2 x 7,0 x 4,8 cm.
Main crystal: 3,7 x 1,4 cm.
Found in 2009
Classic locality
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RM437   Quartz with pyrophyllite
SiO₂
  -  4. Oxides and hydroxides

A brilliant quartz crystals from a well known Catalan area, in the Pyrenees, very appreciated for the quality of its hyaline crystals. A rich group of quartz crystals showing a elongated prism and developed and deformed rhombohedral terminal faces. We also observe some of them doubly terminated, highlighting one of them because of their size. Transparence and brilliance are excellent, with very well defined faces and edges. They are partially covered by small aggregates of pyrophyllite, between colorless to slightly yellow, with some goethitized pyrite. No damage. This sample is a nice representative of the known Llavorsí's quartz crystals.

Size: 7,1 x 6,5 x 5,5 cm.
Main crystal: 4,4 x 1,6 cm.
Found in 2009
Precio reducido-Reduced price 145€
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