NB11M0: A very neat Cassiterite twin, with the classic habit of the Penouta specimens. On a Quartz matrix with Muscovite.
Penouta Mines, Penouta (San Bartolomé), Viana do Bolo, Comarca Viana, Orense / Ourense, Galicia / Galiza  Spain (±1998)

Specimen size: 4.5 × 4.2 × 2.1 cm = 1.77” × 1.65” × 0.83”

Main crystal size: 2.7 × 1.3 cm = 1.06” × 0.51”

D53R: It is not very well know but in the northwest of Spain, in the countryside, it is possible to find some reasonable Emeralds (opaque of course) such as this representative sample.
Emerald Deposit, A Franqueira, A Cañiza, Comarca Paradanta, Pontevedra, Galicia / Galiza  Spain

Specimen size: 2.9 × 2.5 cm = 1.14” × 0.98”

NFM14AN9: Two Beryl crystals (emerald variety), aerial, with very sharp crystal forms, translucent and with an intense color, on a Phlogopite matrix. It comes from a Spanish locality already considered a classic.
This specimen comes from the Miguel David Martínez collection (number 786) whose label we will send to the buyer.
Emerald Deposit, A Franqueira, A Cañiza, Comarca Paradanta, Pontevedra, Galicia / Galiza  Spain (2000)

Specimen size: 3.2 × 2.1 × 2.4 cm = 1.26” × 0.83” × 0.94”

Main crystal size: 1.8 × 1.4 cm = 0.71” × 0.55”

NV6AF2: Thick tabular Beryl (emerald variety) crystal a distinct hexagonal shape, with inclusions of leafy Phlogopite aggregates.
Emerald Deposit, A Franqueira, A Cañiza, Comarca Paradanta, Pontevedra, Galicia / Galiza  Spain

Specimen size: 3.8 × 3.1 × 1.8 cm = 1.50” × 1.22” × 0.71”

NA13AJ5: Two Beryl (emerald variety) crystals, one of them clearly dominant and aerial, with an intense color and on a Phlogopite matrix.
Emerald Deposit, A Franqueira, A Cañiza, Comarca Paradanta, Pontevedra, Galicia / Galiza  Spain

Specimen size: 4.6 × 2.9 × 2.6 cm = 1.81” × 1.14” × 1.02”

Main crystal size: 2.2 × 1.6 cm = 0.87” × 0.63”

TTV66AP9: Parallel growths of doubly terminated Beryl crystals (emerald variety) with good terminations, on matrix and with leafy black Phlogopite coatings.
Emerald Deposit, A Franqueira, A Cañiza, Comarca Paradanta, Pontevedra, Galicia / Galiza  Spain (1982)

Specimen size: 5.5 × 3.1 × 2.8 cm = 2.17” × 1.22” × 1.10”

Main crystal size: 2.3 × 1.1 cm = 0.91” × 0.43”

L58RL6: A large Beryl (var. Emerald) with intense color. The specimen preserves the hexagonal shape, with curved faces partially covered by Muscovite as a matrix. From the most classic Spanish locality for Emerald, although nowadays it is quite impossible to obtain specimens there.
Emerald Deposit, A Franqueira, A Cañiza, Comarca Paradanta, Pontevedra, Galicia / Galiza  Spain (±1990)

Specimen size: 6 × 3.8 × 3.3 cm = 2.36” × 1.50” × 1.30”

TTA67ASN2: A group of Andalusite crystals with well-defined shapes and a pink-salmon color with darker tones. Set on a matrix of Quartz forming geometric patterns with small remnants of Mica. From a Spanish locality not widely known in the collecting world.
The specimen comes from the collection of Andrés Jiménez Shelly, whose label will be sent to the buyer of the piece.

Goian, Tomiño, Comarca Bajo Miño, Pontevedra, Galicia / Galiza  Spain

Specimen size: 11 × 10 × 4.4 cm = 4.33” × 3.94” × 1.73”

Main crystal size: 4.4 × 2.2 cm = 1.73” × 0.87”

NX13AJ9: Aggregate, on a thin matrix, of very sharp crystals, a lot of them doubly terminated, with apparently simple forms but richer than usual on terminal faces. They are clear, colorless and very bright.
The sample is from the Ignacio Hernández collection whose label we will send to the buyer.
Pepita Mine (Mine entrance Alcanadre), Alcanadre, Comarca Rioja Media, La Rioja  Spain

Specimen size: 7.7 × 3.2 × 5.1 cm = 3.03” × 1.26” × 2.01”

Main crystal size: 2.6 × 1.8 cm = 1.02” × 0.71”

TML14AN7: Floater group with two very sharp Pyrite crystals, one of them clearly dominant and both very lustrous.
We will ship the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label, which shows that it was previously in the Sullivan collection.
Ampliación a Victoria Mine, De Alcarama Range, Navajún, Comarca Cervera, La Rioja  Spain

Specimen size: 2 × 1.4 × 1.3 cm = 0.79” × 0.55” × 0.51”

TTR9AO1: Complete floater pentadodecahedral Pyrite crystal, with very sharp crystal forms, something unusual in specimens from this locality in which combined forms predominate.
We will send the buyer the specimen in its original perky box from the Robert J. (Bob) Noble collection, which also contains the label, stating that it was previously in the Melanson collection.

Ambas Aguas (Ambasaguas), Muro de Aguas, Comarca Arnedo, La Rioja  Spain

Specimen size: 2 × 1.8 × 1.9 cm = 0.79” × 0.71” × 0.75”

JAB76AP8: 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”

NA7E1: Good form and esthetic
Valdeperillo, Cornago, Comarca Arnedo, La Rioja  Spain (±1994)

Specimen size: 2.5 × 2.1 × 1.8 cm = 0.98” × 0.83” × 0.71”

NE57E1: Good form and esthetic.
Valdeperillo, Cornago, Comarca Arnedo, La Rioja  Spain (±1994)

Specimen size: 3 × 2.5 × 2.7 cm = 1.18” × 0.98” × 1.06”

TC65NB: Group of brilliant cubic Pyrite crystals with the less developed forms of the pyritohedron and curious curvatures on faces and edges. Morphologically different from what is usual from this locality.
Ampliación a Victoria Mine, De Alcarama Range, Navajún, Comarca Cervera, La Rioja  Spain (2013)

Specimen size: 4.3 × 2.9 × 2.4 cm = 1.69” × 1.14” × 0.94”

Main crystal size: 2.1 × 2.1 cm = 0.83” × 0.83”

NB97T8: A novelty at Expominer (Barcelona) 2011. A crystal on matrix with an unusual flattened morphology, which is quite uncommon for Navajún. The edges, sharp and perfect, are completely natural and the crystal has been consolidated on its matrix to avoid its possible detachment.
Ampliación a Victoria Mine, level 1, De Alcarama Range, Navajún, Comarca Cervera, La Rioja  Spain (04-05/2011)

Specimen size: 4.7 × 4 × 3.5 cm = 1.85” × 1.57” × 1.38”

Main crystal size: 2.5 × 2.3 × 1.5 cm = 0.98” × 0.91” × 0.59”

NBX90AP9: Very aerial group, on matrix, of sharp Pyrite crystals, shinier than usual for specimens from this historic locality (not to be confused with Navajún).
Valdeperillo, Cornago, Comarca Arnedo, La Rioja  Spain

Specimen size: 5.4 × 3 × 3.7 cm = 2.13” × 1.18” × 1.46”

Main crystal size: 2 × 1.7 cm = 0.79” × 0.67”

NEA97AO5: 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”

Main crystal size: 4 × 1.3 cm = 1.57” × 0.51”

MMB99AP3: Two isolated Pyrite crystals, very sharp, slightly flattened and very lustrous, on matrix. A Spanish classic of high quality.
Ampliación a Victoria Mine, De Alcarama Range, Navajún, Comarca Cervera, La Rioja  Spain (2022)

Specimen size: 9.1 × 5.6 × 5.1 cm = 3.58” × 2.20” × 2.01”

Main crystal size: 3.1 × 3.1 cm = 1.22” × 1.22”

MRB71AP5: Isolated crystal of Pyrite, very aerial on the matrix, with perfect shapes, free of damage and very shiny. A Spanish classic of great quality for the deposit.
Ampliación a Victoria Mine, De Alcarama Range, Navajún, Comarca Cervera, La Rioja  Spain (2022)

Specimen size: 9.6 × 9.2 × 9.5 cm = 3.78” × 3.62” × 3.74”

Main crystal size: 4.4 × 4 cm = 1.73” × 1.57”

TC2160NYM: 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”

Main crystal size: 2.6 × 2.6 cm = 1.02” × 1.02”

PT59AH8: Single Pyrite crystal on a matrix partially coated by white aggregates of an unknown phyllosilicate. The crystal, a perfect cube, is very bright, free of damage and solidly attached in the matrix so it didn’t need to be reinforced. A Spanish classic, of great quality for the locality.
Ampliación a Victoria Mine, De Alcarama Range, Navajún, Comarca Cervera, La Rioja  Spain

Specimen size: 12 × 9 × 8.6 cm = 4.72” × 3.54” × 3.39”

Main crystal size: 3.5 × 3.5 cm = 1.38” × 1.38”

SV640MTF: Isolated crystal of Pyrite, very aerial on the matrix, with perfect shapes and marked striations on the faces of the cube, free of damage and very bright.
A Spanish classic of great quality for the deposit.
Ampliación a Victoria Mine, De Alcarama Range, Navajún, Comarca Cervera, La Rioja  Spain (2022)

Specimen size: 12.6 × 10.4 × 10.6 cm = 4.96” × 4.09” × 4.17”

Main crystal size: 4.7 × 4.1 cm = 1.85” × 1.61”

NA57K7: Pentagonododecahedral (pyritohedral) crystals of Pyrite, one of them clearly dominant, with brilliant and sharp faces and edges. Noting the discovery year and the excellent preservation we believe that they will not be altered in the future.
Ambas Aguas (Ambasaguas), Muro de Aguas, Comarca Arnedo, La Rioja  Spain (1994)

Specimen size: 3.6 × 3 × 2.9 cm = 1.42” × 1.18” × 1.14”

NC58K7: Cubic crystals modified by pentagonododecahedral (pyritohedral) faces. Noting the discovery year and the excellent preservation we believe that they will not be altered in the future.
Ambas Aguas (Ambasaguas), Muro de Aguas, Comarca Arnedo, La Rioja  Spain (1994)

Specimen size: 3.6 × 3.2 × 3.4 cm = 1.42” × 1.26” × 1.34”

Main crystal size: 1.4 × 0.8 cm = 0.55” × 0.31”

ND9K7: Group formed by pentagonododecahedron (pyritohedral) crystals modified by cube faces, with very sharp and brilliant faces and edges. Noting the discovery year and the excellent preservation we believe that they will not be altered in the future.
Ambas Aguas (Ambasaguas), Muro de Aguas, Comarca Arnedo, La Rioja  Spain (1994)

Specimen size: 3.7 × 3.2 × 3.6 cm = 1.46” × 1.26” × 1.42”

Main crystal size: 1.2 × 1.1 cm = 0.47” × 0.43”

NR6I0: Crystals combine the forms of cube and pyritohedron and form a close group with curious curvatures on the faces and strong striations all along cube faces.
7 pit, Ambas Aguas (Ambasaguas), Muro de Aguas, Comarca Arnedo, La Rioja  Spain (08/2002)

Specimen size: 7 × 6 × 6.4 cm = 2.76” × 2.36” × 2.52”

Main crystal size: 3.7 × 3.6 cm = 1.46” × 1.42”

L14DAI0: The crystals have one of the more classical combinations of forms from Ambasaguas, the cube and the pyritohedron, the first delicately striated. But it is not so common to find them on marly matrix because they are easily detached in mining.
Ambas Aguas (Ambasaguas), Muro de Aguas, Comarca Arnedo, La Rioja  Spain (1992)

Specimen size: 11 × 10.8 × 5.8 cm = 4.33” × 4.25” × 2.28”

Main crystal size: 2.2 × 2 cm = 0.87” × 0.79”

TC185NH: 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”

Main crystal size: 5.7 × 3  cm = 2.24” × 1.18”

NE11K7: Pine cone formed by small cubic crystals modified by pentagonododecahedron (pyritohedral) faces on the typical Ambasaguas matrix. Noting the discovery year, the matrix, and the excellent preservation we believe that they will not be altered in the future.
Ambas Aguas (Ambasaguas), Muro de Aguas, Comarca Arnedo, La Rioja  Spain (1994)

Specimen size: 4.5 × 4.5 × 4.5 cm = 1.77” × 1.77” × 1.77”

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

NG61K7: Pine cone formed by small cubic crystals modified by pentagonododecahedron (pyritohedral) faces on the typical Ambasaguas matrix. Noting the discovery year, the matrix, and the excellent preservation we believe that they will not be altered in the future.
Ambas Aguas (Ambasaguas), Muro de Aguas, Comarca Arnedo, La Rioja  Spain (1994)

Specimen size: 5.2 × 4.7 × 4 cm = 2.05” × 1.85” × 1.57”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

NH12K7: Pine cone formed by small cubic crystals modified by pentagonododecahedron (pyritohedral) faces on the typical Ambasaguas matrix. Noting the discovery year, the matrix, and the excellent preservation we believe that they will not be altered in the future.
Ambas Aguas (Ambasaguas), Muro de Aguas, Comarca Arnedo, La Rioja  Spain (1994)

Specimen size: 6 × 4.2 × 4.1 cm = 2.36” × 1.65” × 1.61”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”

N46GVC7: The strangest specimen that I have ever seen from Ambasaguas. A strange ball that is made up of thousands of small crystals. The matrix is very solid and the dark color means that it contrasts well with the yellow Pyrite.

Ambas Aguas (Ambasaguas), Muro de Aguas, Comarca Arnedo, La Rioja  Spain (1995)

Specimen size: 12.5 × 10.2 × 7.8 cm = 4.92” × 4.02” × 3.07”

NC59AN2: Rosette aggregate of Calcite pseudomorphs after Gypsum crystals, translucent, with a certain luster and a uniform creamy white color. The specimen comes from a recent find in an area where we were not previously aware of the presence of these curious pseudomorphs. A rarity.
De Los Cazadores Ravine, Rivas-Vaciamadrid, Comarca Área metropolitana de Madrid, Community of Madrid  Spain (09/2020)

Specimen size: 4.7 × 4 × 4.1 cm = 1.85” × 1.57” × 1.61”

NQ10AN2: Rosette aggregate of Calcite pseudomorphs after Gypsum crystals, translucent, with a certain luster and a uniform creamy white color. The specimen comes from a recent find in an area where we were not previously aware of the presence of these curious pseudomorphs. A rarity.
De Los Cazadores Ravine, Rivas-Vaciamadrid, Comarca Área metropolitana de Madrid, Community of Madrid  Spain (09/2020)

Specimen size: 5.4 × 4.6 × 4.4 cm = 2.13” × 1.81” × 1.73”

NM10AN2: Rosette aggregate of Calcite pseudomorphs after Gypsum crystals, translucent, with a certain luster and a uniform creamy white color. The specimen comes from a recent find in an area where we were not previously aware of the presence of these curious pseudomorphs. A rarity.
De Los Cazadores Ravine, Rivas-Vaciamadrid, Comarca Área metropolitana de Madrid, Community of Madrid  Spain (09/2020)

Specimen size: 5.6 × 5.4 × 4 cm = 2.20” × 2.13” × 1.57”

NG11AN2: Rosette aggregate of Calcite pseudomorphs after Gypsum crystals, translucent, with a certain luster and a uniform creamy white color. The specimen comes from a recent find in an area where we were not previously aware of the presence of these curious pseudomorphs. A rarity.
De Los Cazadores Ravine, Rivas-Vaciamadrid, Comarca Área metropolitana de Madrid, Community of Madrid  Spain (09/2020)

Specimen size: 5.9 × 5 × 4.8 cm = 2.32” × 1.97” × 1.89”

NP61AN2: Rosette aggregate of Calcite pseudomorphs after Gypsum crystals, translucent, with a certain luster and a uniform creamy white color. The specimen comes from a recent find in an area where we were not previously aware of the presence of these curious pseudomorphs. A rarity.
De Los Cazadores Ravine, Rivas-Vaciamadrid, Comarca Área metropolitana de Madrid, Community of Madrid  Spain (09/2020)

Specimen size: 6 × 5.4 × 5.1 cm = 2.36” × 2.13” × 2.01”

NL11AN2: Rosette aggregate of Calcite pseudomorphs after Gypsum crystals, translucent, with a certain luster and a uniform creamy white color. The specimen comes from a recent find in an area where we were not previously aware of the presence of these curious pseudomorphs. A rarity.
De Los Cazadores Ravine, Rivas-Vaciamadrid, Comarca Área metropolitana de Madrid, Community of Madrid  Spain (09/2020)

Specimen size: 7.6 × 6 × 4.9 cm = 2.99” × 2.36” × 1.93”

NJ61AL3: Spheroidal aggregates of very lustrous translucent lamellar Bavenite crystals on matrix, with Chlorite.
The specimen comes from the Carlos González Bargueño collection, whose label we will send to the buyer. Carlos was the one who first found these Bavenites and thanks to his work these extraordinary specimens were saved. The Bavenites from Valdeconejillos are somewhat different from the better known ones from the Venero I quarry.
Valdeconejillos Quarry, Cadalso de los Vidrios, Comarca Sierra Oeste de Madrid, Community of Madrid  Spain (2006)

Specimen size: 2.5 × 1.4 × 1.4 cm = 0.98” × 0.55” × 0.55”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

NH97AJ8: Aggregates of very sharp Bavenite crystals with polycrystalline growths. They are very bright and are on an Albite matrix spotted by very dark green Clinochlore.
The sample is from the Carlos González Bargueño collection whose label we will send to the buyer. Carlos was the first to find these Bavenites and it was thanks to his labor that these extraordinary samples have been saved.
Venero I Quarry (Cadalso I Quarry), "Panza de la Burra" pocket, Cadalso de los Vidrios, Comarca Sierra Oeste de Madrid, Community of Madrid  Spain (02/2003)

Specimen size: 3.2 × 2.4 × 1.6 cm = 1.26” × 0.94” × 0.63”

Main crystal size: 1 × 0.7 cm = 0.39” × 0.28”

NB26X9: Group of very well defined divergent sharp Bavenite crystals, very bright and on matrix, with Albite and Quartz crystals. The sample is from the Carlos González Bargueño collection, whose label we’ll send to the buyer. Carlos was the first to find these Bavenites and it was thanks to his labor that these extraordinary samples have been saved.
Venero I Quarry (Cadalso I Quarry), Cadalso de los Vidrios, Comarca Sierra Oeste de Madrid, Community of Madrid  Spain (2005)

Specimen size: 3.2 × 3 × 1.7 cm = 1.26” × 1.18” × 0.67”

Main crystal size: 1 × 0.6 cm = 0.39” × 0.24”

NG57AJ8: Spheroidal aggregates of Bavenite crystals with laminar growths. They are very bright, have an ivory white color and are on a Microcline crystal matrix partially coated by very dark green Clinochlore.
The sample is from the Carlos González Bargueño collection whose label we will send to the buyer. Carlos was the first to find these Bavenites and it was thanks to his labor that these extraordinary samples have been saved.
Venero I Quarry (Cadalso I Quarry), Cadalso de los Vidrios, Comarca Sierra Oeste de Madrid, Community of Madrid  Spain (2003)

Specimen size: 3.3 × 2.6 × 2.2 cm = 1.30” × 1.02” × 0.87”

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

NE63X6: Spheroidal crystal of Bavenite with very sharp polycrystalline growths on its faces. It is very bright and is implanted on a Quartz matrix partially coated by Pyrite and chlorite and with a curiously added small crystal of purple Fluorite. The sample is from the Carlos González Bargueño collection, whose label we’ll send to the buyer. Carlos was the first to find these Bavenites and it was thanks to his labor that these extraordinary samples have been saved.
Venero I Quarry (Cadalso I Quarry), "Panza de la Burra" pocket, Cadalso de los Vidrios, Comarca Sierra Oeste de Madrid, Community of Madrid  Spain (02/2004)

Specimen size: 3.5 × 2.4 × 2.7 cm = 1.38” × 0.94” × 1.06”

Main crystal size: 0.5 × 0.5 cm = 0.20” × 0.20”

NE62AL3: Spheroidal aggregates of sharp lamellar Bavenite crystals, lustrous and on matrix, with Albite and partial Chlorite coatings.
The specimen comes from the Carlos González Bargueño collection, whose label we will send to the buyer. Carlos was the one who first found these Bavenites and thanks to his work these extraordinary specimens were saved.
Venero I Quarry (Cadalso I Quarry), Cadalso de los Vidrios, Comarca Sierra Oeste de Madrid, Community of Madrid  Spain (2005)

Specimen size: 4.6 × 3.4 × 2.4 cm = 1.81” × 1.34” × 0.94”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”

ND50AJ8: Spheroidal aggregates of Bavenite crystals with very well defined polycrystalline growths. They are very bright and are on a Microcline matrix spotted by dark green Clinochlore and are with small Spessartine crystals with a very deep red color.
The sample is from the Carlos González Bargueño collection whose label we will send to the buyer. Carlos was the first to find these Bavenites and it was thanks to his labor that these extraordinary samples have been saved.
Venero I Quarry (Cadalso I Quarry), Cadalso de los Vidrios, Comarca Sierra Oeste de Madrid, Community of Madrid  Spain (2005)

Specimen size: 5.4 × 4.5 × 5.1 cm = 2.13” × 1.77” × 2.01”

Main crystal size: 2.6 × 1.9 cm = 1.02” × 0.75”

NF72AJ8: Spheroidal aggregates of laminar Bavenite crystals that are very bright and are on a smoky Quartz crystal with a very dense color, with Microcline spotted by very dark green Clinochlore and a trapezohedral Spessartine crystal with a very deep red color.
The sample is from the Carlos González Bargueño collection whose label we will send to the buyer. Carlos was the first to find these Bavenites and it was thanks to his labor that these extraordinary samples have been saved.
Venero I Quarry (Cadalso I Quarry), Cadalso de los Vidrios, Comarca Sierra Oeste de Madrid, Community of Madrid  Spain (2003)

Specimen size: 6 × 4.2 × 4.4 cm = 2.36” × 1.65” × 1.73”

NR14Y4: Spheroidal Bavenite crystals with polycrystalline growths on their faces. They are very bright, have an ivory white color and are implanted on a Microcline matrix with small chlorite coatings, slightly smoky Quartz crystals, and, notably, small clear and very bright Chabazite crystals. The sample is from the Carlos González Bargueño collection, whose label we’ll send to the buyer. Carlos was the first to find these Bavenites and it was thanks to his labor that these extraordinary samples have been saved.
Venero I Quarry (Cadalso I Quarry), Cadalso de los Vidrios, Comarca Sierra Oeste de Madrid, Community of Madrid  Spain (2005)

Specimen size: 6.5 × 5 × 2.4 cm = 2.56” × 1.97” × 0.94”

ND62Y9: Spheroidal aggregates and platy Bavenite crystals. They are very bright and are on a matrix with smoky Quarz, partially coated by Chlorite, also present as inclusions in the Quartz, and with small garnet crystals. Carlos González Bargueño was the first to find these Bavenites and it is thanks to his labor that these extraordinary samples have been saved.
Valdeconejillos Quarry, Cadalso de los Vidrios, Comarca Sierra Oeste de Madrid, Community of Madrid  Spain (2006)

Specimen size: 3.9 × 2.3 × 2.5 cm = 1.54” × 0.91” × 0.98”

NV14AA7: Aggregates of spheroidal Bavenite crystals with an ivory-white color and implanted on a Microcline matrix with small Quartz crystals and aggregates of Chlorite micro-crystals.
The sample is from the Carlos González Bargueño collection, whose label we will send to the buyer. Carlos was the first to find these Bavenites and it was thanks to his labor that these extraordinary samples have been saved.
This specimen was published on the Mineralogical Record´s web page, in the ‘What’s New in the Mineral World?’ section, report #39, December 06, 2014 edition.
Valdeconejillos Quarry, Cadalso de los Vidrios, Comarca Sierra Oeste de Madrid, Community of Madrid  Spain (2006)

Specimen size: 5.8 × 3.8 × 4.3 cm = 2.28” × 1.50” × 1.69”

NQ62AL3: Spheroidal aggregates of lamellar Bavenite crystals, translucent, very shiny and on matrix, with small, very transparent and lustrous crystals of smoky Quartz.
The specimen comes from the Carlos González Bargueño collection, whose label we will send to the buyer. Carlos was the one who first found these Bavenites and thanks to his work these extraordinary specimens were saved. The Bavenites from Valdeconejillos are somewhat different from the better known ones from the Venero I quarry.
Valdeconejillos Quarry, Cadalso de los Vidrios, Comarca Sierra Oeste de Madrid, Community of Madrid  Spain (2006)

Specimen size: 4 × 2.8 × 2.3 cm = 1.57” × 1.10” × 0.91”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

NC16F2: From a very new locality, the prisms of transparent smoky Quartz are on a matrix of Albite and are partially covered by small crystals of Bavenite, which is also present near the edges of the Albite.
Venero I Quarry (Cadalso I Quarry), Cadalso de los Vidrios, Comarca Sierra Oeste de Madrid, Community of Madrid  Spain (2004)

Specimen size: 6.5 × 6 × 5 cm = 2.56” × 2.36” × 1.97”

NR11F2: From a very new locality, the prisms of smoky Quartz, which have excellent color and brilliance, form a fence of parallel crystals. A base covered by Opal, which adds contrast and support.
Venero I Quarry (Cadalso I Quarry), Cadalso de los Vidrios, Comarca Sierra Oeste de Madrid, Community of Madrid  Spain (2004)

Specimen size: 7.5 × 6.2 × 3.5 cm = 2.95” × 2.44” × 1.38”

EP96AI8: Group of two transparent and very bright Quartz (citrine variety) crystals with Calcite and partially coated by acicular, greenish-white crystals of the Clinozoisite-Epidote series.
The sample is from the Raúl Sanabria collection whose label we will send to the buyer.
The specimen has been photographed and published in the magazine ‘Paragénesis’, number 01/2019, page 88
Navazales Quarry (El Berrocal, Los Gallegos), La Cabrera pluton, Valdemanco - Bustarviejo, Comarca Sierra de Guadarrama, Community of Madrid  Spain

Specimen size: 7.4 × 7.1 × 4.7 cm = 2.91” × 2.80” × 1.85”

Main crystal size: 7.4 × 4.1 cm = 2.91” × 1.61”

SV2240EGX: Group of Quartz crystals (smoky variety) implanted on a matrix of Orthoclase crystals twinned according to the Baveno law, and with a parallel aggregate of lamellar Mica crystals, probably Muscovite.
The specimen, of special interest due to its locality and size, comes from the collection of Raúl Sanabria, whose label we will send to the buyer.
Navazales Quarry (El Berrocal, Los Gallegos), La Cabrera pluton, Valdemanco - Bustarviejo, Comarca Sierra de Guadarrama, Community of Madrid  Spain (03/2001)

Specimen size: 14.4 × 11.6 × 6.7 cm = 5.67” × 4.57” × 2.64”

Main crystal size: 4.5 × 3.5 cm = 1.77” × 1.38”

EQ47AJ5: Group of smoky colored crystals between transparent and translucent with white phantom growths, very bright and on matrix with Microcline.
The sample is from the Raúl Sanabria collection whose label we will send to the buyer.
Navazales II Quarries, La Cabrera pluton, Valdemanco - Bustarviejo - Cabanillas de la Sierra - Navalafuente, Comarca Sierra Norte, Community of Madrid  Spain (02/2001)

Specimen size: 10 × 7.4 × 6.8 cm = 3.94” × 2.91” × 2.68”

Main crystal size: 8.7 × 5.6 cm = 3.43” × 2.20”

ER54AM7: Group of Quartz crystals with distinct parallel growths on the prism faces, on a matrix of Orthoclase crystals twinned according to the Baveno law and with a parallel aggregate of lamellar Mica crystals, probably Muscovite. This specimen, of special interest due to the location, size and slightly citrine color of the Quartz, comes from the Raúl Sanabria collection, whose label we will send to the buyer.
Navazales Quarry (El Berrocal, Los Gallegos), La Cabrera pluton, Valdemanco - Bustarviejo, Comarca Sierra de Guadarrama, Community of Madrid  Spain (05/2001)

Specimen size: 21 × 10.1 × 13.2 cm = 8.27” × 3.98” × 5.20”

Main crystal size: 8.2 × 4.8 cm = 3.23” × 1.89”

EP67AJ5: Aerial group of Microcline crystals with a very well defined double Baveno-Manebach twin, and with echeloned parallel growths and partially coated by Prehnite crystals with a pale green color and white Calcite crystals.
The sample is from the Raúl Sanabria collection whose label we will send to the buyer.
Navazales Quarry (El Berrocal, Los Gallegos), La Cabrera pluton, Valdemanco - Bustarviejo, Comarca Sierra de Guadarrama, Community of Madrid  Spain (04/2001)

Specimen size: 11.1 × 8.6 × 7.3 cm = 4.37” × 3.39” × 2.87”

Main crystal size: 6.6 × 5.1 cm = 2.60” × 2.01”

NBF76AO5: Orthoclase crystal with very sharp faces and edges and a very well defined double Baveno-Manebach twin.
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.
Bustarviejo, Comarca Sierra Norte, Community of Madrid  Spain

Specimen size: 7.6 × 3.3 × 2.8 cm = 2.99” × 1.30” × 1.10”

N8CI0: The crystals have a globular aspect due to curved faces and edges. They have a soft clear greenish yellow color and an intense luster. They form a practically floating druse, except for a little fragment of Orthoclase on the back, where the specimen was fixed to the rocky matrix.
Isabel Quarry (La Saludadora Quarry), La Cabrera pluton, Valdemanco, Comarca Sierra de Guadarrama, Community of Madrid  Spain (03/1999)

Specimen size: 4.4 × 4.2 × 2.4 cm = 1.73” × 1.65” × 0.94”

NN6AK5: From a collection displayed for the first time at Munich 2019: Aggregate of spheroidal growths of Prehnite crystals, translucent, lustrous, and pale yellowish green. Partially coated with thin tabular crystals of translucent white Calcite. On matrix, with Quartz and microcrystals of Epidote-Clinozoisite.
The specimen is from the Miguel David Martínez collection (No. 105), whose label we will send to the buyer.
Isabel Quarry (La Saludadora Quarry), La Cabrera pluton, Valdemanco, Comarca Sierra de Guadarrama, Community of Madrid  Spain

Specimen size: 9.2 × 4.4 × 3.9 cm = 3.62” × 1.73” × 1.54”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

N46BG4: Crystals, defined and closely grouped, have an excellent luster and a pleasant clear color, between green and yellow. On the back side, around the Quartz, which is the nucleus of crystallization, some fragments of Orthoclase and little acicular crystals of a species in the series Epidote - Clinozoisite appear.
Isabel Quarry (La Saludadora Quarry), La Cabrera pluton, Valdemanco, Comarca Sierra de Guadarrama, Community of Madrid  Spain (02/1999)

Specimen size: 10.5 × 7.5 × 4 cm = 4.13” × 2.95” × 1.57”

EB27AJ5: Spheroidal aggregates of Prehnite crystals that are well defined, translucent, with an excellent luster and a pale color, between green and yellow. They are on a matrix with Microcline, Clinozoisite and white tabular Calcite crystals.
The sample is from the Raúl Sanabria collection whose label we will send to the buyer.
Los Taberneros Quarry, (La Cabrera pluton), Los Taberneros, El Berrueco, Comarca Sierra Norte, Community of Madrid  Spain (03/1999)

Specimen size: 14.5 × 8.2 × 5.8 cm = 5.71” × 3.23” × 2.28”

N9EI7: Groups of acicular crystals of Clinozoisite-Epidote, clear and very bright, on a matrix of Orthoclase, mosaic growths of Quartz crystals and Albite.
Los Taberneros Quarry, (La Cabrera pluton), Los Taberneros, El Berrueco, Comarca Sierra Norte, Community of Madrid  Spain (02/1999)

Specimen size: 7.8 × 7 × 3.5 cm = 3.07” × 2.76” × 1.38”

NQ7L2: This specimen comes from the pockets of the granite area of El Berrueco (Madrid). A big Quartz crystal partially covered by a thin layer of colorless but very bright and well defined Fluorapophyllite-(K) crystals. There are small and isolated generations of Fluorapophyllite crystals on the Quartz pyramid faces not covered by Fluorapophyllite-(K).
Los Taberneros Quarry, (La Cabrera pluton), Los Taberneros, El Berrueco, Comarca Sierra Norte, Community of Madrid  Spain (12/2002)

Specimen size: 7.9 × 5.9 × 5.3 cm = 3.11” × 2.32” × 2.09”

Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”

EF96AI8: Group of thick tabular Calcite crystals with very well defined geometrical zoning and on a Quartz matrix. The crystals have a considerable size for the locality.
The sample is from the Raúl Sanabria collection whose label we will send to the buyer.
Los Taberneros Quarry, (La Cabrera pluton), Los Taberneros, El Berrueco, Comarca Sierra Norte, Community of Madrid  Spain (05/2004)

Specimen size: 5.1 × 5 × 3.8 cm = 2.01” × 1.97” × 1.50”

Main crystal size: 3.1 × 2 cm = 1.22” × 0.79”

NA6AC1: Radial aggregates of acicular crystals whose chemical composition is between Clinozoisite (dominant) and Epidote. The crystals are implanted on a matrix partially coated by clear green Prehnite aggregates, Orthoclase and Quartz crystals. The sample is from a large famous find in 1999 at the La Saludadora Quarry.
Isabel Quarry (La Saludadora Quarry), La Cabrera pluton, Valdemanco, Comarca Sierra de Guadarrama, Community of Madrid  Spain (03/1999)

Specimen size: 19.8 × 15.1 × 4.5 cm = 7.80” × 5.94” × 1.77”

NRA46AN9: Very aerial group of Prehnite crystals, of good size for the locality, with crystal forms that are unusually sharp for the species, between translucent and transparent, with good luster and a greenish yellow color, on an Orthoclase matrix, associated with crystals of the Clinozoisite-Epidote (Series)
Isabel Quarry (La Saludadora Quarry), La Cabrera pluton, Valdemanco, Comarca Sierra de Guadarrama, Community of Madrid  Spain

Specimen size: 5.4 × 4.7 × 3.2 cm = 2.13” × 1.85” × 1.26”

Main crystal size: 1 × 0.9 cm = 0.39” × 0.35”

SM130DAJ: Group of Quartz crystals (smoky variety), one of them clearly dominant and partially doubly terminated, with a normal termination at the lower end and a parallel polycrystalline growth in the upper part. The group, very rich in inclusions, conserves remains of an Orthoclase matrix.
The specimen comes from the Lluís Daunis collection.
(La Cabrera pluton), La Cabrera, Comarca Sierra Norte, Community of Madrid  Spain (±1970)

Specimen size: 9.6 × 4.3 × 4 cm = 3.78” × 1.69” × 1.57”

Main crystal size: 8.2 × 4.3 cm = 3.23” × 1.69”