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Mineral specimens search results for [ Quartz ]Page bottom

Quartz (variety smoky) with Orthoclase.
DL13AH2: Quartz (variety smoky) with Orthoclase
Two partially doubly terminated Quartz crystals, one of them clearly dominant, very flattened, with fine superficial recrystallization of the same Quartz, and with parallel growths of Orthoclase crystals.
The Daunis collection was, in the 70’s and the 80’s, a reference for the local prospectors of the Barcelona area.
(La Cabrera pluton), La Cabrera, Comarca Sierra Norte de Madrid, Community of Madrid  Spain (±1970)
Specimen size: 6.3 × 4.8 × 2.7 cm = 2.48” × 1.89” × 1.06”

Price: €80 / US$83 / ¥11560 / AUD$120
Quartz (variety smoky) with Orthoclase.
EQ47AJ5: Quartz (variety smoky) with Orthoclase
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 de Madrid, 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”

Price: [SOLD]
Quartz (variety smoky) with Rutile inclusions.
SM480HRG: Quartz (variety smoky) with Rutile inclusions
Smoky Quartz crystal, between transparent and translucent, lustrous, with deep smoky tones and very rich in inclusions of fine fibrous aggregates of Rutile with a golden yellow color. An old classic from Brazil.
Novo Horizonte, Bahia, Northeast Region  Brazil (±1970)
Specimen size: 20.8 × 18 × 13.8 cm = 8.19” × 7.09” × 5.43”

Price: [SOLD]
Quartz (variety smoky), Albite, Microcline.
3N57: Quartz (variety smoky), Albite, Microcline
Crystals of very deeply colored smoky Quartz, transparent and shiny, with a little Microcline and Albite matrix, with some leafy growths of Muscovite.
Mas Sever Quarry, Massabè (Mas Ceber), Sils, Comarca La Selva, Gerona / Girona, Catalonia / Catalunya  Spain (12/2001)
Specimen size: 11.0 × 5.7 × 2.7 cm = 4.33” × 2.24” × 1.06”

Price: €50 / US$51 / ¥7230 / AUD$70
Quartz (variety smoky), Chlorite.
10DQ: Quartz (variety smoky), Chlorite
Quartz crystals (variety smoky), one of them clearly dominant, doubly terminated, with well-defined faces and edges, with external and internal inclusions of deep green Chlorite crystals, which give some of the Quartz crystal faces a rough appearance
Dodo Mine, Saranpaul, Khanty-Mansi Okrug, Tyumen Oblast  Russia
Specimen size: 3.9 × 2.0 × 1.9 cm = 1.54” × 0.79” × 0.75”

Price: €40 / US$41 / ¥5780 / AUD$60
Quartz after Anhydrite.
TB16V4: Quartz after Anhydrite
Group of flattened prismatic crystals of Anhydrite, one of them dominant, completely pseudomorphed by Quartz. The Quartz forms a continuous surface of small, very bright, crystals.
The sample, very typical for the locality, is with a label of the collector, Robert Stoufer, that we will send to the buyer.
OS pocket, Ouray, Ouray District, Ouray County, Colorado  USA (1992)
Specimen size: 9.4 × 4.4 × 2.5 cm = 3.70” × 1.73” × 0.98”

Price: [SOLD]
Quartz after Aragonite.
XM140TC: Quartz after Aragonite
Group of crystals, very aerial and on matrix, of Quartz pseudomorphs after Aragonite, an unusual substitution and, in this case, also very aesthetic. The crystals have recognizable crystal shapes, and are translucent and white. The specimen comes from the Alain Martaud collection, whose label we will send to the buyer.
Los Pajaritos-Cabezo de Don Juan Ravine, Llano del Beal, Cartagena, Comarca Campo de Cartagena, Region of Murcia (Murcia)  Spain (1980-1985)
Specimen size: 10.5 × 7.8 × 9 cm = 4.13” × 3.07” × 3.54”

Price: €140 / US$145 / ¥20240 / AUD$210
Quartz after Aragonite with Quartz.
NB87AM2: Quartz after Aragonite with Quartz
Group of very aerial crystals on a matrix of Quartz pseudomorphs after Aragonite, an unusual replacement and, in this case, also very aesthetic. The crystals, with recognizable crystal shapes are translucent and white in color.
Los Pajaritos-Cabezo de Don Juan Ravine, Llano del Beal, Cartagena, Comarca Campo de Cartagena, Region of Murcia (Murcia)  Spain
Specimen size: 10.3 × 9.5 × 5.5 cm = 4.06” × 3.74” × 2.17”

Main crystal size: 3 × 0.9 cm = 1.18” × 0.35”

Price: [SOLD]
Quartz after Baryte on Quartz.
TC2260NBX: Quartz after Baryte on Quartz
Group of Quartz crystals covered by groups of lamellar pseudomorphs that preserve the crystal forms of Baryte, replaced by microcrystals of Quartz. A genetics curiosity.
Cabezo de Don Juan, Llano del Beal, Cartagena, Comarca Campo de Cartagena, Region of Murcia (Murcia)  Spain
Specimen size: 14.2 × 8.2 × 5.9 cm = 5.59” × 3.23” × 2.32”

Price: [SOLD]
Quartz after Calcite.
NM61D9: Quartz after Calcite
Let’s see: some scalenohedrons of Calcite once existed in the pocket. They are now long gone and all that remains is the form of the faces of the old Calcite crystals that have been preserved by the coating of Quartz that formed on them. It is a floater with a very clean appearance and great originality. It is the most spectacular of the specimens of this type that came out of this find.
The specimen has been reviewed and published in the magazine ‘Bocamina’ on page 62 in number 19, year 2007.
La Viesca Mine, Reguerín II pocket, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (12/2001)
Specimen size: 11.5 × 9.5 × 5 cm = 4.53” × 3.74” × 1.97”

Price: [SOLD]
Quartz after Calcite with Sphalerite and Pyrite.
EA87AE5: Quartz after Calcite with Sphalerite and Pyrite
Perimorph growths of small white Quartz crystal coatings over disappeared Calcite crystals that had very sharp rhombohedral forms. On the back on the sample groups of Pyrite micro-crystals and twinned Sphalerite crystals have grown. The sample is from a very poorly known mine, far from the Maramures area.
Bucegi Mountains (Gaura), Brasov, Brasov District, Transylvania  Romania (1969)
Specimen size: 13.7 × 12.2 × 6.2 cm = 5.39” × 4.80” × 2.44”

Price: [SOLD]
Quartz after Fluorite.
EB66AM2: Quartz after Fluorite
Very aerial Quartz on matrix, which has completely replaced a cubic Fluorite crystal. The replacement of Fluorite by Quartz, which is not just a coating, is evident in the smaller crystals on this specimen.
Aurouze, Mazerat-Aurouze, Brioude, Haute-Loire, Auvergne-Rhône-Alpes  France
Specimen size: 5.2 × 4.6 × 2.4 cm = 2.05” × 1.81” × 0.94”

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

Price: [SOLD]
Quartz after Fluorite.
EHR89AP3: Quartz after Fluorite
Quartz geode with a relict growth that has preserved not only the pre-existing form of a cubic Fluorite crystal but even the oriented forms of overgrowths on the fluorite. Small subsequent recrystallizations of a second generation of quartz appear too.
Sidi Rahal, El Kelaâ des Sraghna Province, Marrakech-Safi Region  Morocco (2022)
Specimen size: 8.2 × 7.8 × 9.2 cm = 3.23” × 3.07” × 3.62”

Price: [SOLD]

XM2160NQA: Quartz after fossil
Quartz crystals of intense luster cover a hemispherical cavity corresponding to an ancient fossil, probably a bivalve, embedded in a matrix of marly rock formed in a lagoon. These Quartz-filled vugs are very difficult to get today since the locality is now protected and so specimens can only be obtained from old collections, such as that of Santiago Jiménez García in this case.
Quartz geodes outcrop, Valdematilla ravine, Tubilla del Agua, Comarca Valle del Rudrón, Burgos, Castile and León  Spain
Specimen size: 11.8 × 11.1 × 4.5 cm = 4.65” × 4.37” × 1.77”

Main crystal size: 6.3 × 6 cm = 2.48” × 2.36”

Price: [SOLD]
Quartz coated by Quartz (variety chalcedony).
HM280NT: Quartz coated by Quartz (variety chalcedony)
Group of slightly amethystine Quartz crystals with the faces completely covered by a second generation of pale pink micro-crystalline Quartz.
The specimen comes from the Miguel David Martínez collection (nº 519) whose label we will send to the buyer.
Los Pajaritos-Cabezo de Don Juan Ravine, Llano del Beal, Cartagena, Comarca Campo de Cartagena, Region of Murcia (Murcia)  Spain
Specimen size: 12.8 × 9.5 × 7.7 cm = 5.04” × 3.74” × 3.03”

Price: [SOLD]
Quartz doubly terminated with hydrocarbon inclusions.
TRT16AO7: Quartz doubly terminated with hydrocarbon inclusions
Group of doubly terminated crystals, one of them clearly dominant, transparent, lustrous, and with well-defined spherical inclusions of hydrocarbons, some of them mobile. A high quality Spanish classic, very fine.
Berbes mining area, Berbes, Ribadesella, Comarca Oriente, Principality of Asturias (Asturias)  Spain
Specimen size: 6.2 × 3.5 × 3.2 cm = 2.44” × 1.38” × 1.26”

Main crystal size: 5.6 × 2.4 cm = 2.20” × 0.94”

Price: [SOLD]
Quartz on Siderite.
N11BI7: Quartz on Siderite
Doubly terminated, very bright and absolutely clear crystal. It is on a matrix of crystallized Siderite. The crystal has curious deformations on the terminal faces and shows inclusions on its central zone.
Tazoult Nâra deposit, Jebel Boutaraf, Taouz, Er Rachidia Province, Drâa-Tafilalet Region  Morocco (1998)
Specimen size: 9.4 × 7.6 × 6.5 cm = 3.70” × 2.99” × 2.56”

Price: [SOLD]
Quartz perimorphic of Calcite.
MTR89AO0: Quartz perimorphic of Calcite
Druse of Calcite and Quartz crystals with one much larger crystal that was once a Calcite scalenohedron, completely hollow and replaced by microcrystalline Quartz that preserves the perfectly sharp forms of the previously existing Calcite. The application of a strong light source shows that the crystal is completely empty inside.
Xiefang Mine, Ruijin, Ganzhou Prefecture, Jiangxi Province  China (2014)
Specimen size: 9.2 × 6.6 × 6 cm = 3.62” × 2.60” × 2.36”

Main crystal size: 6.6 × 3.3 cm = 2.60” × 1.30”

Price: [SOLD]
Quartz prase with Andradite.
MM17N4: Quartz prase with Andradite
The crystal has polycrystalline surfaces with the typical spindled shape of the samples from this locality. The sample is very aerial and esthetic on a matrix very rich with small crystals of Andradite.
Sinerechenskoe, Primorsky Krai  Russia (2008)
Specimen size: 7.3 × 5.7 × 4.1 cm = 2.87” × 2.24” × 1.61”

Price: [SOLD]
Quartz prase with Andradite.
MR47N4: Quartz prase with Andradite
Crystals with polycrystalline surfaces with the typical spindled shape of the samples from this locality. The sample is very aerial and esthetic on a matrix very rich with small crystals of Andradite.
Sinerechenskoe, Primorsky Krai  Russia (2008)
Specimen size: 9 × 7.8 × 7 cm = 3.54” × 3.07” × 2.76”

Main crystal size: 5.5 × 1.8 cm = 2.17” × 0.71”

Price: [SOLD]
Quartz prase with Andradite.
EB58E9: Quartz prase with Andradite
The crystal is large, very aerial, has good color and brilliance. It stands out from the matrix, and has the typical widening for prase Quartz from this locality. The matrix has other small prase Quartz crystals as well as small Andradite crystals.
Sinerechenskoe, Primorsky Krai  Russia (1999)
Specimen size: 10 × 6 × 5.5 cm = 3.94” × 2.36” × 2.17”

Price: [SOLD]
Quartz replacing fosil.
VA16J1: Quartz replacing fosil
Columnar and crested growths of small, white, very bright crystals. Crystallization has occurred on the interior of an empty fossil sponge which made the cavity where the geode formed.
Sedano, Valle de Sedano, Comarca de Páramos, Burgos, Castile and León  Spain
Specimen size: 8.5 × 8.3 × 5.6 cm = 3.35” × 3.27” × 2.20”

Price: [SOLD]
Quartz scepter (variety amethyst).
EB16AL8: Quartz scepter (variety amethyst)
Scepter growth of a transparent Quartz crystal very lustrous, with phantom growths, abundant inclusions and a very vivid amethyst color with smoky colored areas distributed irregularly in the crystal. Of the best possible quality for the locality, which is not very well known.
Chibuku Mine, Zambezi Valley, Mashonaland West  Zimbabwe (2018)
Specimen size: 4.2 × 1.4 × 1.2 cm = 1.65” × 0.55” × 0.47”

Price: [SOLD]
Quartz scepter (variety amethyst).
EG66AL8: Quartz scepter (variety amethyst)
Scepter growth of a transparent Quartz crystal very shiny, with phantom growths, abundant inclusions and a very vivid color, between dominant smoky tones and amethyst violet irregularly distributed in the crystal. On a doubly terminated crystal of colorless Quartz with abundant inclusions. Of the best possible quality for the locality, which is not very well known.
Chibuku Mine, Zambezi Valley, Mashonaland West  Zimbabwe (2018)
Specimen size: 7.4 × 2.1 × 1.4 cm = 2.91” × 0.83” × 0.55”

Main crystal size: 1.6 × 1.3 cm = 0.63” × 0.51”

Price: €160 / US$166 / ¥23130 / AUD$240
Quartz scepter (variety amethyst).
ED66AL8: Quartz scepter (variety amethyst)
Scepter growth of a transparent Quartz crystal very shiny, with phantom growths, abundant inclusions and a very vivid amethyst color with smoky colored areas distributed irregularly in the crystal. Of the best possible quality for the locality, which is not very well known.
This specimen has been published on the Mineralogical Record´s web page, in the ‘What's New’ section, report 57, August 30, 2020 edition, page 4
Chibuku Mine, Zambezi Valley, Mashonaland West  Zimbabwe (2018)
Specimen size: 4.7 × 1.7 × 1.6 cm = 1.85” × 0.67” × 0.63”

Price: [SOLD]

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