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TC2160NYM: Pyrite
Very sharp Pyrite crystals, aerial on the matrix and free from damage, something not always a given for specimens from this locality. The specimen comes from the Miguel David Martínez collection (number 900), whose label we will send to the buyer.
Ampliación a Victoria Mine, De Alcarama Range, Navajún, Comarca Cervera, La Rioja  Spain (2021)
Specimen size: 11.6 × 11.3 × 7.2 cm = 4.57” × 4.45” × 2.83”
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JFD204AP5: Pyrite
After many years already in my collection, nothing seems to have altered this Pyrite from Ambas Aguas, which perfectly preserves its luster and its good state of conservation, both the main crystal and the “little child” that it carries in its upper part.
Ambas Aguas (Ambasaguas), Muro de Aguas, Comarca Arnedo, La Rioja  Spain (1991)
Specimen size: 5.5 × 3.2 × 2.2 cm = 2.17” × 1.26” × 0.87”

Main crystal size: 4 × 2.9 cm = 1.57” × 1.14”
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EFZ66AQ1: Pyrite
Druse of cubic Pyrite crystals with polycrystalline growths and slight distortions and curvatures on all their faces.
Saint-Denis-d'Orques, La Flèche, Sarthe Department, Pays de la Loire  France (2022)
Specimen size: 6.8 × 4.7 × 3.2 cm = 2.68” × 1.85” × 1.26”
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ETV86AN5: Pyrite
Floater group of Pyrite with very sharp crystal forms, lustrous polycrystalline growths and with small remnants of a carbonaceous matrix. Excellent for the locality, from which specimens of such a high quality were not known before.
Saint-Denis-d'Orques, La Flèche, Sarthe Department, Pays de la Loire  France (04/2021)
Specimen size: 7.7 × 5.7 × 3.9 cm = 3.03” × 2.24” × 1.54”

Main crystal size: 2.2 × 1.5 cm = 0.87” × 0.59”
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SM180NKD: Pyrite
Group of Pyrite crystals with cube forms with strongly striated surfaces, and smooth pyritohedrons, on a marl matrix. A classic of Spanish mineralogy.
Ambasaguas 2 outcrop, Ambas Aguas (Ambasaguas), Muro de Aguas, Comarca Arnedo, La Rioja  Spain (08/2002)
Specimen size: 12.6 × 9.7 × 5.6 cm = 4.96” × 3.82” × 2.20”

EPF96CD6: Pyrite
Floater specimen formed of arborescent crystals of very shiny Pyrite and different from those we usually see from this deposit, the Moscona Mine. The specimen is very old, this type of specimen having been 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: 4.5 × 2 × 1.6 cm = 1.77” × 0.79” × 0.63”
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TC185NH: Pyrite
Pyritohedral crystal with deformed faces, a brilliant luster, implanted on a marl matrix. A Spanish classic.
Ambasaguas 2 outcrop, Ambas Aguas (Ambasaguas), Muro de Aguas, Comarca Arnedo, La Rioja  Spain (04-07/2002)
Specimen size: 13.4 × 9.8 × 7.5 cm = 5.28” × 3.86” × 2.95”

TBX17CD5: Pyrite
Pyrite is not the most common mineral in the Panasqueira mines, but from time to time curious samples like this one have been found, formed by a group of very lustrous pineapple-shaped crystals with a cavity that shows a crystal of cubic morphology, also of Pyrite, adorning the entire specimen, which comes from the former collection of Francisco Fernández Ortega. A floater.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal
Specimen size: 7.7 × 7 × 4.8 cm = 3.03” × 2.76” × 1.89”

Main crystal size: 1.3 × 1 cm = 0.51” × 0.39”
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MKL97AN9: Pyrite
Floater group of Pyrite crystals with cubic habit, very rich in polycrystalline growths and very lustrous.
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region  Morocco (07/2020)
Specimen size: 9.3 × 6.4 × 6.2 cm = 3.66” × 2.52” × 2.44”
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TC220NT: Pyrite
Group of Pyrite crystals of cubic habit with distinct polycrystalline growths. This specimen is very old, with crystals much larger than those known before, and it comes from Minas de Villabona, a locality much less prolific than the nearby Moscona mine in Solís.
Villabona Mines, Barrio de la Estación, Villabona, Llanera, Comarca del Nora, Principality of Asturias (Asturias)  Spain (1964)
Specimen size: 7.2 × 7.1 × 4.9 cm = 2.83” × 2.80” × 1.93”

Main crystal size: 2.5 × 2 cm = 0.98” × 0.79”
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EA96AC9: Pyrite
The sample, a floater, is a fossil sponge covered by crystals of Pyrite with very well defined and bright dominant octahedral faces and smaller cube faces. Very unusual, both for its composition and for the locality.
Boulonnais, Manche, Normandie  France
Specimen size: 8 × 4.3 × 4 cm = 3.15” × 1.69” × 1.57”
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JFD75AO0: Pyrite
When I bought this very unusual piece I had many illusions because of its alleged rarity and, as often happens, analyses demolished my illusions. It's a Pyrite, just Pyrite, but it's weird as hell, right?
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1988)
Specimen size: 7.1 × 3.9 × 3.7 cm = 2.80” × 1.54” × 1.46”

Main crystal size: 3.1 × 2.6 cm = 1.22” × 1.02”
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TQ47AL5: Pyrite
Complex floater crystal, very rich in well-defined crystal forms that are rare in Pyrite. From a well-known but poorly known locality.
We will send the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label.
Nanisivik Mine, Nanisivik, Baffin Island, Nunavut Territory  Canada
Specimen size: 2.1 × 1.9 × 1.5 cm = 0.83” × 0.75” × 0.59”
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TXM47AP9: Pyrite
Nodular growth of Pyrite with an interior rich in sharp and aerial crystals of the same Pyrite that are very visible due to the partial dissolution of the sedimentary material that hosted the Pyrite nodule. Very different from the usual.
Saint-Denis-d'Orques, La Flèche, Sarthe Department, Pays de la Loire  France
Specimen size: 12 × 8.4 × 4.8 cm = 4.72” × 3.31” × 1.89”

Main crystal size: 1 × 0.5 cm = 0.39” × 0.20”
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JAB76AP8: Pyrite
Complete floater crystal of Pyrite with dominant cube faces and vertices truncated by octahedron faces, a well-known but unusual feature in specimens from Navajun. This specimen comes from the collection of Andrés Jiménez Shelly and was previously in François Sabathier's.
Ampliación a Victoria Mine, De Alcarama Range, Navajún, Comarca Cervera, La Rioja  Spain
Specimen size: 2.4 × 2.3 × 2.3 cm = 0.94” × 0.91” × 0.91”
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EVA96AN5: Pyrite
Very curious morphology of this Pyrite that forms parallel vertical growths, highlighting some very sharp trihedral terminations, which surprisingly do not seem to correspond to the cubic system. Excellent for the locality, from which specimens of such high quality have hardly ever been seen.
Saint-Denis-d'Orques, La Flèche, Sarthe Department, Pays de la Loire  France (04/2021)
Specimen size: 8.7 × 2.4 × 4.6 cm = 3.43” × 0.94” × 1.81”

Main crystal size: 1.1 × 1 cm = 0.43” × 0.39”
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TM37AE9: Pyrite
Complex Pyrite crystal, very rich in faces, with a dominant octahedron, very bright and on matrix. A rarity at Milpillas, very interesting from a morphological point of view.
This specimen has been reviewed and published in the special "Milpillas" of the magazine ‘Lapis’ number 07-08/2017, page 35 and in the monograph 'The Milpillas Mine' of the ‘Mineralogical Record‘ magazine on page 612 in the volume 52, number 5, September-October 2021
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2016)
Specimen size: 3.7 × 3.6 × 3 cm = 1.46” × 1.42” × 1.18”
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EGH27ASN5: Pyrite
Sedimentary-origin Pyrite crystals, very aerially disposed on matrix, showing octahedral and pentagonal dodecahedral morphologies with rounded vertices and some faces exhibiting deep striations, all of them highly lustrous. They form an elegant structure, and moreover, they come from a French deposit that is rarely represented in collections.
Intercommunality Serre-Ponçon, Embrun, Gap, Hautes-Alpes, Provence-Alpes-Côte d'Azur  France
Specimen size: 7.8 × 3.4 × 2.9 cm = 3.07” × 1.34” × 1.14”

Main crystal size: 1.5 × 1 cm = 0.59” × 0.39”
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EMB97ASN3: Pyrite
A very curious and interesting specimen formed by cubic Pyrite crystals that have grown over an elliptical concave cavity, likely of fossil origin, formed by a petrified marly clay intergrown with bands of Pyrite. A high-quality piece and difficult to find nowadays, as the quarry from which it comes, although still active, is dangerous and specimen collection there is prohibited.
Saint-Denis-d'Orques, La Flèche, Sarthe Department, Pays de la Loire  France (2022)
Specimen size: 14.1 × 10.9 × 4.1 cm = 5.55” × 4.29” × 1.61”
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EDX48AO0: Pyrite
Spheroidal nodules of Pyrite crystals with the dominant faces of the octahedron, very shiny, included in a carbonaceous matrix.
State Bridge area, Rocky Mountain, Eagle County, Colorado  USA
Specimen size: 7.6 × 6.3 × 4.4 cm = 2.99” × 2.48” × 1.73”

Main crystal size: 2.9 × 2.3 cm = 1.14” × 0.91”
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JFD32AN7: Pyrite
The habit of this Pyrite is known in Spain as a 'matchbox'. Some faces of the cube are wider and more elongated than the others, giving this 'rectangular' appearance. They are rare in Navajún and when they do appear they are highly desired, especially if they are in matrix, as in this case.
Ampliación a Victoria Mine, De Alcarama Range, Navajún, Comarca Cervera, La Rioja  Spain (2014)
Specimen size: 6.4 × 5.1 × 3.7 cm = 2.52” × 2.01” × 1.46”
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JFD31AN7: Pyrite
Navajún and its Ampliación a Victoria mine are known worldwide for their cubic pyrites that are among the best in the world, but in addition to the cubes there are also pyrites like this one, with octahedral faces. They appear in the deposit at only a single spot where no work has been done for many years. Maybe one day work will be done in that section again and more of these characteristic cubo-octahedral pyrites will appear, but for now... I bought it of course from Pedro Ansorena in 2002. Pedro is the owner of the mine and the person who knows it best.
Ampliación a Victoria Mine, De Alcarama Range, Navajún, Comarca Cervera, La Rioja  Spain (±2000)
Specimen size: 3.8 × 3.3 × 3.6 cm = 1.50” × 1.30” × 1.42”
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NEA97AO5: Pyrite
Pyrite crystal with a very sharp parallelepiped shape, lustrous, undamaged and very aerial on its matrix. No repairs or reinforcements. The specimen comes from the collection of Santiago Jiménez who, especially in the 1980s and '90s, put together an excellent collection with a very good representation of the mineralogy of northern Spain.
Valdeperillo, Cornago, Comarca Arnedo, La Rioja  Spain
Specimen size: 8.2 × 6.7 × 3.9 cm = 3.23” × 2.64” × 1.54”
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TF59AC9: Pyrite
Aggregate of very bright Pyrite crystals with dominant cube faces but very rich in other forms and with very well defined growth striations.
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department  Peru (08/2014)
Specimen size: 9.2 × 8.1 × 3.5 cm = 3.62” × 3.19” × 1.38”

Main crystal size: 3.7 × 3.2 cm = 1.46” × 1.26”
.
MFM89AO1: Pyrite
A very aerial floater group of sharp Pyrite crystals, with a slightly flattened habit and an uncommonly intense luster. This very aesthetic specimen is from a classic Italian locality for the species, but from which there are not many quality specimens.
Niccioleta Mine, Massa Marittima, Grosseto Province, Tuscany  Italy
Specimen size: 8.4 × 7.8 × 3.6 cm = 3.31” × 3.07” × 1.42”

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