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EGH62AO8: Calcite (twinned)
A novelty from Ste. Marie 2022. Group of very sharp Calcite crystals, one of them very aerial, dominantly flattened and with a contact twin of very well defined crystal forms. Transparent and uniform yellow. The specimen comes from a well-known but little-disclosed locality in the Canary Islands in which no finds of this type had been previously made.
De Tasarte Ravine, La Aldea de San Nicolás, Gran Canaria, Las Palmas Province, Canary Islands  Spain (12/2021)
Specimen size: 2.8 × 2.5 × 1.4 cm = 1.10” × 0.98” × 0.55”
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EPA62AO8: Calcite (twinned)
A novelty from Ste. Marie 2022. Complete floater contact twin of two very sharp Calcite crystals, very aerial, flattened and with very well defined crystal shapes. Transparent and uniform yellow. The specimen comes from a well-known but little-disclosed locality in the Canary Islands in which no finds of this type had been made previously.
De Tasarte Ravine, La Aldea de San Nicolás, Gran Canaria, Las Palmas Province, Canary Islands  Spain (12/2021)
Specimen size: 5 × 1.8 × 0.3 cm = 1.97” × 0.71” × 0.12”
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NRM14AQ0: Calcite (twinned)
Complex twinned crystal of Calcite with the dominant forms of a scalenohedron, transparent, with white inclusions in some of the faces, on matrix, with an earlier generation of white rhombohedral crystals. The specimen comes from the Antonino Bueno collection, whose label we will send to the buyer.
Áliva Mine (Las Mánforas Mine), level 2, Áliva mining area, Camaleño, Comarca Liébana, Cantabria  Spain (2006)
Specimen size: 7.9 × 6.7 × 4.5 cm = 3.11” × 2.64” × 1.77”
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TFB14AQ0: Calcite (twinned)
Contact twin, floater and complete, of two very sharp Calcite crystals, very aerial, flattened and with very sharp crystal forms. transparent and a uniform yellow color. The specimen comes from a well-known but little publicized Canary Island locality from which no such finds had been made before. Alain Martaud had kept it for his personal collection, from the selection he made when he first got these very unusual calcites. We will send the Alain's collection label to the buyer of the piece.
De Tasarte Ravine, La Aldea de San Nicolás, Gran Canaria, Las Palmas Province, Canary Islands  Spain (12/2021)
Specimen size: 4 × 1.7 × 0.3 cm = 1.57” × 0.67” × 0.12”

XM290EXM: Calcite (twinned)
A novelty at Sainte-Marie 2022 Very flattened and sharp crystal of Calcite showing a contact twin that creates the interior reticulation observed thanks to the translucency of the light yellow crystal.
De Tasarte Ravine, La Aldea de San Nicolás, Gran Canaria, Las Palmas Province, Canary Islands  Spain (12/2021)
Specimen size: 5.3 × 1.5 × 0.3 cm = 2.09” × 0.59” × 0.12”

XM290EYR: Calcite (twinned)
A novelty at Sainte-Marie 2022 Very flattened and sharp crystal of Calcite with a light yellow hue, showing a juxtaposed twin that is reminiscent of gypsum crystals with the swallowtail habit.
De Tasarte Ravine, La Aldea de San Nicolás, Gran Canaria, Las Palmas Province, Canary Islands  Spain (12/2021)
Specimen size: 4.8 × 1.5 × 0.3 cm = 1.89” × 0.59” × 0.12”

XM290EFT: Calcite (twinned)
A novelty at Sainte-Marie 2022 Pair of very flattened and sharp Calcite crystals, with a light yellow color, displaying a very unusual contact twin.
De Tasarte Ravine, La Aldea de San Nicolás, Gran Canaria, Las Palmas Province, Canary Islands  Spain (12/2021)
Specimen size: 3.8 × 3.3 × 0.5 cm = 1.50” × 1.30” × 0.20”
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TFG6AQ0: Calcite (twinned)
Contact twin, floater and complete, of two very sharp Calcite crystals, very aerial, flattened and with very sharp crystal forms. transparent and a uniform yellow color. The specimen comes from a well-known but little publicized Canary Island locality from which no such finds had been made before. Alain Martaud had kept it for his personal collection, from the selection he made when he first got these very unusual calcites. We will send the Alain's collection label to the buyer of the piece.
De Tasarte Ravine, La Aldea de San Nicolás, Gran Canaria, Las Palmas Province, Canary Islands  Spain (12/2021)
Specimen size: 4.4 × 2.3 × 0.3 cm = 1.73” × 0.91” × 0.12”
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TBF46AQ0: Calcite (twinned)
Two contact twins, one of them clearly dominant, a complete floater of very sharp Calcite crystals, very aerial and flattened. Transparent and a uniform yellow color. The specimen comes from a known but little publicized Canary Island locality from which previously no finds of this type had been made. Alain Martaud had kept it in his personal collection, from the selection he made when he first got these very unusual calcites. We will send the Alain's collection label to the buyer of the piece.
De Tasarte Ravine, La Aldea de San Nicolás, Gran Canaria, Las Palmas Province, Canary Islands  Spain (12/2021)
Specimen size: 5.4 × 2.8 × 1 cm = 2.13” × 1.10” × 0.39”
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THF66AQ0: Calcite (twinned)
Crystal group, on matrix, of contact twins of Calcite, complete, very aerial and with very sharp crystal forms. Transparent and a uniform yellow color. The specimen comes from a well-known but not very publicized locality in the Canary Islands, where previously no such finds had been made. Alain Martaud had kept it in his personal collection, from the selection he made when he first got these very unusual calcites. We will send the Alain's collection label to the buyer of the piece.
De Tasarte Ravine, La Aldea de San Nicolás, Gran Canaria, Las Palmas Province, Canary Islands  Spain (12/2021)
Specimen size: 6.1 × 4.4 × 2.7 cm = 2.40” × 1.73” × 1.06”

Main crystal size: 3.8 × 0.7 cm = 1.50” × 0.28”
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16TP56: Calcite (twinned)
A common species like Calcite is not usually world class, but in this case we observe a group of crystals from the August 2004 discovery in Madagascar, formed by an attractive aggregate, in which the sharpness of the crystals, their color and luster, and especially the appearance of extraordinarily unusual twins, formed by the interpenetration of two rhombohedra, are outstanding.
Basalt Quarry, Ambariomiambana, Sambava District, Sava Region  Madagascar (08/2004)
Specimen size: 3.5 × 3.1 × 2.5 cm = 1.38” × 1.22” × 0.98”
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TDC27AN3: Calcite (twinned)
Group of Calcite crystals, one of them clearly dominant, doubly terminated, with very sharp scalenohedron forms and a very sharp interpenetration twin. Translucent, lustrous and on matrix. This specimen, which is exceptional for the locality, comes from the Alain Martaud collection.
Largentière Mines, Largentière, Vallon-Pont-d'Arc, Ardèche, Auvergne-Rhône-Alpes  France (±1980)
Specimen size: 7.6 × 6.1 × 5.7 cm = 2.99” × 2.40” × 2.24”

Main crystal size: 7 × 4.4 cm = 2.76” × 1.73”
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JBF76AP8: Calcite (twinned)
Calcite crystals, one of them clearly dominant and very aerial on the matrix, with a very evident, transparent, lustrous and colorless contact twin. The specimen, from a quarry little known for twinned specimens, comes from the collection of Andrés Jiménez Shelly.
Arambeltz Quarry, Ziordia (Ciordia), Comarca Barranca, Chartered Community of Navarre (Navarre)  Spain
Specimen size: 5.7 × 5 × 3.9 cm = 2.24” × 1.97” × 1.54”
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NTT89AQ1: Calcite (twinned) doubly terminated
Floater group of scalenohedral Calcite crystals in parallel growth, twinned and doubly terminated with one of them clearly dominant. Translucent, with very bright luster and intense color. An American classic. The specimen comes from the collection of Miguel David Martínez Pérez.
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA
Specimen size: 11.6 × 5.7 × 4.8 cm = 4.57” × 2.24” × 1.89”
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ELR87AP3: Calcite (twinned) with Sphalerite
Group of Calcite crystals, one of them clearly dominant and very aerial, formed by a dominant scalenohedron, terminated by rhombohedron faces, clearly twinned, translucent, lustrous and on matrix, with Sphalerite microcrystals. The specimen, of high quality for the locality, is from an old find made in 1971. The piece comes from the collection of Pierre-Marie Guy who was the one who found it.
Trèves Mine, Fournels Valley, Trèves, Gard, Occitanie  France (1971)
Specimen size: 8.5 × 8.3 × 6.2 cm = 3.35” × 3.27” × 2.44”
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TRX87AP5: Calcite (two generations) with Fluorite
Druse of transparent cubic Fluorite crystals, with good luster and a yellow color, on matrix, with coatings of scalenohedral Calcite crystals that have grown in two phases, the first one being very rich in Hematite inclusions, and the second in transparent white crystals. The specimen comes from the Miguel David Martínez collection (number 895), whose label we will send to the buyer.
Moscona Mine, El Llano, Solís, Corvera de Asturias, Comarca Avilés, Principality of Asturias (Asturias)  Spain
Specimen size: 13.5 × 7.9 × 5.7 cm = 5.31” × 3.11” × 2.24”

Main crystal size: 2.4 × 1.5 cm = 0.94” × 0.59”
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VF37AE7: Calcite (variety "papierspat") with Chlorite, Orthoclase and Quartz
Floater aggregate of Calcite crystals with oriented faces forming parallel growths of extraordinarily flattened crystals (a habit that is well known as “papierspat.” The aggregate is partially coated, mainly on the back, by Chlorite, very sharp Orthoclase (adularia variety) crystals and small Quartz crystals.
The sample is from the duplicates collection of Joaquín Folch, whose label we’ll send to the buyer.
Griesseren Valley, Maderanertal, Uri  Switzerland (±1952)
Specimen size: 9.7 × 6.2 × 5 cm = 3.82” × 2.44” × 1.97”
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21NPJ14: Calcite (variety Co-bearing calcite)
Banded growths of pink cobalt-bearing Calcite alternating with bands of white and yellowish Calcite, on a matrix of Permo-Triassic age conglomerate. The specimen has not been polished neither acid-treated, as evidenced by the roughness of many of the surfaces and the existence of easily alterable carbonates. Coming from a classic deposit for Catalan mineralogy, in the western Pyrenees.
Solita Mine, Peramea, Baix Pallars, Comarca Pallars Sobirà, Lérida / Lleida, Catalonia / Catalunya  Spain
Specimen size: 4.6 × 4.3 × 3.3 cm = 1.81” × 1.69” × 1.30”
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XM290TLX: Calcite (variety Co-bearing calcite)
Partially covering a rock matrix are a multitude of small Calcite (cobalt-bearing variety) crystals with a very uniform and bright color. The specimen, from the Alain Martaud collection, is a mineralogical curiosity from the French Pyrenees.
Les Cabesses, Rivèrenert, Saint-Girons, Ariège Department, Occitanie  France (2017)
Specimen size: 5.4 × 4.7 × 2.6 cm = 2.13” × 1.85” × 1.02”
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JFD93AO1: Calcite (variety Co-bearing calcite)
Calcite with an intense color, very characteristic of those that came out many years ago in the Bou Azzer Mine. I bought it from Ali Moudoud when he, along with his brother, practically controlled all the specimens that came out of the mines in the Bou Azzer area. Those were very difficult years but, in a way, also exciting and attractive.
Bou Azzer Mine, Bou Azzer mining district, Ouarzazate Province, Drâa-Tafilalet Region  Morocco (09/1994)
Specimen size: 3.6 × 3.1 × 0.9 cm = 1.42” × 1.22” × 0.35”

Main crystal size: 0.6 × 0.3 cm = 0.24” × 0.12”
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TX66AM9: Calcite (variety Co-bearing calcite)
Very aerial growth of Calcite crystals with the dominant forms of a rhombohedron, but very rich in faces, transparent, with very bright luster and an especially deep and uniform mauve color.
Agoudal Mines, Tansifite, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region  Morocco (2019)
Specimen size: 5.9 × 4.4 × 2.1 cm = 2.32” × 1.73” × 0.83”
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ETF37AO9: Calcite (variety Co-bearing calcite)
Obtained at Ste. Marie 2022 Botryoidal growths of transparent rhombohedral Calcite crystals, very lustrous, on matrix and with excellent color between pink and mauve (cobalt-bearing variety). Very characteristic specimen of the finds that were made in this mine at the beginning of the 21st century.
Agoudal Centre Quarry, Tansifite, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region  Morocco (±2000)
Specimen size: 6.4 × 5.8 × 4.4 cm = 2.52” × 2.28” × 1.73”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”
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EGM27AO9: Calcite (variety Co-bearing calcite)
Obtained at Ste. Marie 2022 Equant crystals of Calcite with the dominant crystal forms of the rhombohedron, translucent, unusually intense mauve color (cobalt-bearing variety). On matrix, with white Calcite crystals. An example of the type of specimens that were found many years in Agoudal.
Agoudal Centre Quarry, Tansifite, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region  Morocco
Specimen size: 8.2 × 7.5 × 5.8 cm = 3.23” × 2.95” × 2.28”
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XM2230MAX: Calcite (variety Co-bearing calcite)
Druse of Calcite crystals (cobalt-rich variety) with mauve-pink tones, in a rock matrix, on a first generation of Calcite crystals which were not stained by cobalt ions.
Lanping, Nujiang Autonomous Prefecture, Yunnan Province  China (07/2022)
Specimen size: 4.4 × 3.6 × 2.9 cm = 1.73” × 1.42” × 1.14”
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XM2230MFR: Calcite (variety Co-bearing calcite)
Druse of Calcite crystals (cobalt-rich variety) showing scalenohedral habits in some deeper toned crystals and globular forms of lighter color in others. Accompanied by fine acicular radiating crystals.
Lanping, Nujiang Autonomous Prefecture, Yunnan Province  China (07/2022)
Specimen size: 3.7 × 2.6 × 1.6 cm = 1.46” × 1.02” × 0.63”

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Minerals		 Oliete Collection
The Oliete
Collection		 The Jan Buma Collections
The Jan Buma
Collections		 The James Catmur Collection
The James Catmur
Collections		 The Silvane Collection
The Silvane
Collection
The Pedro Goy Collection
The Pedro Goy
Collection		 The Desmond Sacco Collection
The Desmond Sacco
Collection		 Best Specimens
Best Specimens		 The Folch Collection
The Folch
Collection		 Home Page Minerals
Home Page
Minerals