Pyrite - Mineral specimens search results

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Mineral specimens search results for [ Pyrite ]

Very flattened groups of deformed Pyrite crystals, as curious and unusual as they are attractive, on matrix, with white botryoidal coatings of Calcite. The specimen came from Ferat Voca, a former worker in this classic mine.
Stan Trg (Stan Terg, Stari Trg) Mine, Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District Kosovo (2000-2021)
Specimen size: 9.7 × 8.8 × 6.3 cm = 3.82” × 3.46” × 2.48”

NC27AL9: Pyrite with Calcite

Polycrystalline aggregates of hexahedral Pyrite crystals, with good luster and curious color variations, ranging from greenish yellow to brassy. An unusually aesthetic specimen from a very recent find in Panasqueira.
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (07-08/2020)
Specimen size: 9.6 × 6.4 × 3.5 cm = 3.78” × 2.52” × 1.38”

Main crystal size: 0.8 × 0.7 cm = 0.31” × 0.28”

BLF37AP2: Pyrite with Calcite

Group of Pyrite crystals with very well defined polycrystalline growths, lustrous, in a Calcite matrix. The specimen, a German classic, comes from an important European collection.
Eupel Mine, Niederhövels, Wissen, Flammersfeld, Altenkirchen (Westerwald), Siegerland, Rhineland-Palatinate/Rheinland-Pfalz Germany
Specimen size: 12.8 × 8.8 × 6.2 cm = 5.04” × 3.46” × 2.44”

TE37AI9: Pyrite with Calcite

A floater group of pyritohedral crystals without minor forms, with very well-defined faces and edges, very bright and partially coated by growths of calcite microcrystals. The specimen is from a locality where good Pyrite specimens are not so common.
Concepción del Oro, Municipio Concepción del Oro, Zacatecas Mexico
Specimen size: 7.5 × 6.2 × 3.7 cm = 2.95” × 2.44” × 1.46”

Main crystal size: 1.4 × 1.2 cm = 0.55” × 0.47”

JFD33AN7: Pyrite with Calcite

A classic mine for Spanish mineralogy from which, however, very few specimens were saved, probably due to the method of exploitation, and perhaps because Pyrite and Galena are very abundant minerals in Spain and so that is why little attention was paid to specimens from this particular mine, although some specimens from this deposit are at least as good as those from other more famous Spanish localities. This piece came into my hands thanks to the kindness of Conchita Ferrando, widow of Jorge Darlington Rivera, a geologist at the mine who had the wisdom to make a small collection of the specimens he obtained while working there. Without him and Conchita, it is more than likely that references of the mining heritage of the Alcudia Valley would have been lost.
Diógenes Group of Mines, Quintos Lebrachos, Solana del Pino, Comarca Valle de Alcudia y Sierra Madrona, Ciudad Real, Castilla-La Mancha Spain (1972-1975)
Specimen size: 8.4 × 4.8 × 4 cm = 3.31” × 1.89” × 1.57”

EPR97AP2: Pyrite with Calcite

Botryoidal Pyrite growths with very vivid metallic iridescence, very lustrous, in matrix, with acute scalenohedral Calcite crystals.
Daguangshan Mine, Edong, Daye, Huangshi Prefecture, Hubei Province China (06/2022)
Specimen size: 7.5 × 4.3 × 2.6 cm = 2.95” × 1.69” × 1.02”

MQ88AG4: Pyrite with Calcite

Druse of complex Pyrite crystals very rich in faces, very bright and partially coated by white Calcite crystals. The sample is from recent finds.
Stan Trg (Stan Terg, Stari Trg) Mine, Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District Kosovo (2016)
Specimen size: 13.8 × 8.2 × 7.2 cm = 5.43” × 3.23” × 2.83”

EY98AE5: Pyrite with Calcite

Aggregate of cubic Pyrite crystals with echeloned growths and polycrystalline formations on the cube faces. They are very well defined, bright and on a Dolomite matrix and with lenticular Calcite crystals. While well known and relatively common at Trepča, Pyrite is not easily found there as significant collectible samples and less so with such quality as this.
Stan Trg (Stan Terg, Stari Trg) Mine, Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District Kosovo (1994-2002)
Specimen size: 7.4 × 6.7 × 5.9 cm = 2.91” × 2.64” × 2.32”

Main crystal size: 4.7 × 4.7 cm = 1.85” × 1.85”

NB96AB5: Pyrite with Calcite

Aggregates of Pyrite crystals mainly consisting of the cube and the pyritohedron, with strongly iridescent surfaces, small Calcite crystals and leafy Muscovite aggregates. The upper levels of Panasqueira are currently offering surprising and pleasant novelties, with samples that are very different from what has been known from this mine.
Minas da Panasqueira, level 0, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (11/2014)
Specimen size: 12 × 8.9 × 5 cm = 4.72” × 3.50” × 1.97”

E9GK0: Pyrite with Calcite

Group of complex crystals with a notable domination of the pentadodecahedron (pyritohedron) forms and with small but very evident faces of the octahedron. At the base there is a small group of white crystals of Calcite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (1997)
Specimen size: 7.2 × 4.8 × 2.3 cm = 2.83” × 1.89” × 0.91”

Main crystal size: 1.8 × 1.6 cm = 0.71” × 0.63”

NA58G8: Pyrite with Calcite

Splendid miniature, very esthetical. Pyrite growth as an elegant aggregate of cubic crystals lightly curved associated with globular formations of lenticular crystals of white Calcite. The piece represents a good reference of the species from Panasqueira.
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (2004)
Specimen size: 4.5 × 3.5 × 1.5 cm = 1.77” × 1.38” × 0.59”

SM340NV: Pyrite with Calcite

Flat floater plate of Pyrite crystals very rich in faces, extraordinarily bright and on matrix, with small Calcite crystals. Very perfect, which is difficult in such a large piece from this mine.
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (±2004)
Specimen size: 23.7 × 12.8 × 2.7 cm cm = 9.33” × 5.04” × 1.06”

Main crystal size: 1.5 × 1.2 cm cm = 0.59” × 0.47”

MD13X3: Pyrite with Calcite

Coatings of small octahedral Pyrite crystals, very well defined and bright, on an aggregate of lenticular Calcite crystals.
Salsigne Mine, Salsigne, Mas-Cabardès, Carcassonne, Aude, Occitanie France
Specimen size: 9.8 × 8.3 × 3 cm = 3.86” × 3.27” × 1.18”

SV2150TAM: Pyrite with Calcite and Dolomite

Pineapple-shaped aggregate formed by cubic crystals of Pyrite, with a strong luster and golden reflections, with well-defined faces and edges of the crystals, arranged on a matrix formed by carbonates, mainly Calcite with slightly scalenohedral grey crystals, and partially covered by crystals of pale cream-colored Dolomite. The Trepča mining complex is one of the largest polymetallic deposits in the world, which for many years yielded and still yields, exceptional pieces of Sphalerite, as well as varied combinations of sulfides and carbonates as shown in this specimen, from the ex-Ferat Voca collection.
Stan Trg (Stan Terg, Stari Trg) Mine, Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District Kosovo (2000-2021)
Specimen size: 6.4 × 5.5 × 5 cm = 2.52” × 2.17” × 1.97”

Main crystal size: 1.9 × 1.5 cm = 0.75” × 0.59”

MFA87AP3: Pyrite with Calcite and Fluorite

Pineapple growth of deformed cubic Pyrite crystals with curvatures, striations and other growth forms, on matrix, with white rhombohedral Calcite crystals, and cubic Fluorite crystals which are transparent, with good luster and an intense yellow color. The specimen is not from the classic Moscona mine, but rather from the Villabona mines.
Villabona Mines, Barrio de la Estación, Villabona, Llanera, Comarca del Nora, Principality of Asturias (Asturias) Spain (1993)
Specimen size: 7.8 × 5.1 × 4.5 cm = 3.07” × 2.01” × 1.77”

EN86AM1: Pyrite with Calcite and Muscovite

Spheroidal polycrystalline growths of Pyrite with cubic crystal habit, very lustrous and with brass-colored reflections. On matrix, with white lenticular Calcite crystal coatings and leafy Muscovite aggregates.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal
Specimen size: 6 × 5.4 × 3.2 cm = 2.36” × 2.13” × 1.26”

SV2160TTX: Pyrite with Calcite, Sphalerite and Quartz

Group of cubic crystals of Pyrite, very shiny, with deep golden reflections, with marked striations on the faces and intergrown in a matrix formed by a crystalline mass of Sphalerite that forms crystals at the ends of the specimen. Adorned with flattened lenticular crystals of Calcite and water-clear crystals of Quartz at the base, providing a beautiful color contrast. The Trepča mining complex is one of the largest polymetallic deposits in the world and for many years has provided collectors with exceptional pieces of Sphalerite, as well as various combinations of sulfides and carbonates as shown in this specimen, from the ex-Ferat Voca collection.
Stan Trg (Stan Terg, Stari Trg) Mine, Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District Kosovo (2000-2021)
Specimen size: 9 × 7.4 × 3.4 cm = 3.54” × 2.91” × 1.34”

JFD161AO8: Pyrite with Calcite-Dolomite

Unusual. Extra-flat Pyrite crystals growing in what appears to have been a coating of carbonates on the face of a Quartz crystal that at some point had detached, with the crystallization of the carbonates finishing far from where they started forming. As said, unusual.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (1990)
Specimen size: 4.7 × 3.3 × 0.6 cm = 1.85” × 1.30” × 0.24”

NA14AH4: Pyrite with Calcite-Dolomite

Clusters of small Pyrite crystals with complex crystalline forms, with dominant cube faces. They have grown on a botryoidal growth of linear Dolomite crystals that, on the back, have geometric hollows left by an unknown disappeared mineral that had trigonal geometry. Extraordinarily unusual for the locality, currently extinct.
Almaden Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha Spain (±1980)
Specimen size: 13.2 × 9 × 2.9 cm = 5.20” × 3.54” × 1.14”

JFD153AO7: Pyrite with Calcite-Dolomite

Panasqueira pyrites are unmistakable. It is curious that such a common mineral can be assigned to one locality in such a recognizable way. Flattened cubes, rich in faces, with Calcite-Dolomite in many cases and that brass-like color, from ancient ore. It is nice what they call the pyrites in Panasqueira when they have this type of tones or they are oxidized: 'ferruginadas'
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (1989)
Specimen size: 9.2 × 8.3 × 3.1 cm = 3.62” × 3.27” × 1.22”

Main crystal size: 0.6 × 0.4 cm = 0.24” × 0.16”

JFD200AP4: Pyrite with Calcite-Dolomite and Quartz

As those familiar with the deposit know, Panasqueira pyrites can be very good. This piece is a good example of this, with the crystal aggregate forming a very aerial pineapple on a Quartz matrix completely covered by small Calcite-Dolomite crystals and with the mold of another Quartz crystal on the back. Everything is quite perfect, without any dings, which is not very common in Panasqueira where, due to the operating conditions, it is very difficult to prevent pieces from being damaged. Luminous and showy, a very good Pyrite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (1992)
Specimen size: 9.8 × 6.8 × 6.3 cm = 3.86” × 2.68” × 2.48”

AF96Y8: Pyrite with Calcite-Dolomite and Quartz

Isolated very bright cubic Pyrite crystals slightly modified by the pyritohedron. They are on a growth of white Calcite-Dolomite crystals partially coating a clear Quartz crystal. The sample has been photographed for a long article in Mineral Up magazine devoted to the mineralogy of Portugal, although we cannot assure that the image will be definitely published.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (1987-2013)
Specimen size: 8.8 × 3 × 2.8 cm = 3.46” × 1.18” × 1.10”

Main crystal size: 1.7 × 1.6 cm = 0.67” × 0.63”

MB16AA7: Pyrite with Calcite-Dolomite and Siderite

Aggregate of cubic Pyrite crystals modified by the pyritohedron that produces a slight curvature on the edges. The Pyrite crystals, very bright, are on a matrix with small white Calcite-Dolomite crystals coating a lenticular Siderite crystal.
Minas da Panasqueira, level 0, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (10/2014)
Specimen size: 5.7 × 3 × 2.1 cm = 2.24” × 1.18” × 0.83”

TA47AD5: Pyrite with Dolomite and Sphalerite

A novelty at Tucson 2016. Aggregate of Pyrite crystals showing the cube and the pyritohedron, and partially coated by small Sphalerite crystals and slightly pink rhombohedral Calcite crystals. The sample is from a not yet widely divulged Peruvian mine.
Atalaya Mine, Huallanca District, Bolognesi Province, Ancash Department Peru (11/2015)
Specimen size: 11.5 × 8 × 5.8 cm = 4.53” × 3.15” × 2.28”

Main crystal size: 5 × 4.7 cm = 1.97” × 1.85”

EXB86CD6: Pyrite with Fluorite

Floater specimen formed of very shiny skeletal Pyrite crystals that partially cover a group of characteristic yellow Fluorite crystals from the Mina Moscona, as you can see on the back of the piece. This specimen is very old, as this type of specimen was found at the beginning of mining, which began in 1978. A rarity.
Moscona Mine, El Llano, Solís, Corvera de Asturias, Comarca Avilés, Principality of Asturias (Asturias) Spain (+1985)
Specimen size: 4.6 × 4.4 × 3.3 cm = 1.81” × 1.73” × 1.30”

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