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EQ26AA8: Genthelvite with Magnetite, Quartz, Fluorite, Arsenopyrite, Calcite-Dolomite

Aggregate of very sharp tetrahedral Genthelvite crystals on a Magnetite matrix, with white rhombohedral Calcite-Dolomite crystals, Arsenopyrite, Quartz and Fluorite. As the close-up view photo shows, the Fluorite is especially clear. The analyses at different depths of the crystals reveal they are uniformly Genthelvite, without other species in zones. We will send a copy of the analyses to the buyer.
Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region China (2014)
Specimen size: 9.8 × 6.5 × 4.2 cm = 3.86” × 2.56” × 1.65”
Price: [SOLD]

MP56AE1: Genthelvite with Quartz and Calcite

Very aerial aggregate of very sharp tetrahedral Genthelvite crystals with a salmon color and partially coated by Calcite and microcrystalline Quartz. The analysis gives Genthelvite both on the crystal surfaces and in the interior. We’ll send a copy of the analysis to the buyer.
The specimen's photo has been reviewed and published in the magazine ‘Rocks & Minerals’ on page 63 in the volume 96, number 1, Jan/Feb 2021
Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region China (2012)
Specimen size: 4 × 3 × 3.2 cm = 1.57” × 1.18” × 1.26”

Main crystal size: 2 × 1.3 cm = 0.79” × 0.51”
Price: [SOLD]

MR32AB1: Genthelvite with Quartz, Calcite and Chlorite

Very sharp polycrystalline Genthelvite growth with a neatly tetrahedral shape and dark brown color. It is on a matrix with Quartz crystals and extremely flattened Calcite crystals (papierspat). Analyzed by Raman, the sample is Genthelvite both on its surface and its interior. We’ll send a copy of the analysis to the buyer.
Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region China (2014)
Specimen size: 8.3 × 5.5 × 4 cm = 3.27” × 2.17” × 1.57”
Price: €680 / US$724 / ¥110940 / AUD$1110

TP26AH6: Geocronite

Very sharp, aerial and complete crystal of Geocronite, a rare lead sulphosalt, uncommon in such a large and great quality crystal. The crystal is free of damage, shows echeloned growths on one of its sides and is unusually bright. The lateral side on the third image is rough but complete, not broken.
We’ll send the sample in its original Perkin’s box from the R.J. Noble collection, also containing the collection label.
Pollone Mine, Valdicastello Carducci, Pietrasanta Municipality, Lucca Province, Tuscany Italy
Specimen size: 2.6 × 1.5 × 1 cm = 1.02” × 0.59” × 0.39”
Price: [SOLD]

MTX88AP2: Geocronite with Fluorite

A new discovery at Munich 2022 High quality Geocronite crystals with sharp crystal forms and polycrystalline growths marked by striations, associated with crystals of slightly translucent, apple-green Fluorite which, due to the contrast with the Geocronite, generates very aesthetic pieces. The Geocronite has been analyzed and we will send a copy of the analysis to the buyer.
Milpo Mine, Cerro de Pasco, Atacocha mining district, Pasco Province, Pasco Department Peru (07-08/2022)
Specimen size: 2.6 × 2.1 × 1.7 cm = 1.02” × 0.83” × 0.67”
Price: [SOLD]

MLP99AP2: Geocronite with Fluorite

A new discovery at Munich 2022 High quality Geocronite crystals with sharp crystal forms and polycrystalline growths marked by striations, associated with crystals of slightly translucent, apple-green Fluorite which, due to the contrast with the Geocronite, generates very aesthetic pieces. The Geocronite has been analyzed and we will send a copy of the analysis to the buyer.
Milpo Mine, Cerro de Pasco, Atacocha mining district, Pasco Province, Pasco Department Peru (07-08/2022)
Specimen size: 2.6 × 2.5 × 2 cm = 1.02” × 0.98” × 0.79”
Price: [SOLD]

MRR14AP2: Geocronite with Fluorite

A new discovery at Munich 2022 High quality Geocronite crystals with sharp crystal forms and polycrystalline growths marked by striations, associated with crystals of slightly translucent, apple-green Fluorite which, due to the contrast with the Geocronite, generates very aesthetic pieces. The Geocronite has been analyzed and we will send a copy of the analysis to the buyer.
Milpo Mine, Cerro de Pasco, Atacocha mining district, Pasco Province, Pasco Department Peru (07-08/2022)
Specimen size: 4 × 3.2 × 1.8 cm = 1.57” × 1.26” × 0.71”
Price: [SOLD]

MFA46AP2: Geocronite with Fluorite

A new discovery at Munich 2022 High quality Geocronite crystals with sharp crystal forms and polycrystalline growths marked by striations, associated with crystals of slightly translucent, apple-green Fluorite which, due to the contrast with the Geocronite, generates very aesthetic pieces. The Geocronite has been analyzed and we will send a copy of the analysis to the buyer.
Milpo Mine, Cerro de Pasco, Atacocha mining district, Pasco Province, Pasco Department Peru (07-08/2022)
Specimen size: 4.4 × 3.1 × 2.2 cm = 1.73” × 1.22” × 0.87”
Price: €1400 / US$1491 / ¥228420 / AUD$2290

MFR57AP2: Geocronite with Fluorite

A new discovery at Munich 2022 High quality Geocronite crystals with sharp crystal forms and polycrystalline growths marked by striations, associated with crystals of slightly translucent, apple-green Fluorite which, due to the contrast with the Geocronite, generates very aesthetic pieces. The Geocronite has been analyzed and we will send a copy of the analysis to the buyer.
This specimen has been published on the Mineralogical Record´s web page, in the 'What’s New on the Internet Reports' section, report 65, November 15, 2022 edition, page 2
Milpo Mine, Cerro de Pasco, Atacocha mining district, Pasco Province, Pasco Department Peru (07-08/2022)
Specimen size: 6.2 × 5.1 × 3 cm = 2.44” × 2.01” × 1.18”
Price: [SOLD]

NHD86AQ1: Geocronite with Galena and Fluorite (octahedral)

Geocronite crystals with very sharp crystal forms and with an intense luster that distinguishes it from the darker matte Galena which accompanies it on the matrix, along with several green and transparent octahedral crystals of Fluorite.
Milpo Mine, Cerro de Pasco, Atacocha mining district, Pasco Province, Pasco Department Peru (07-08/2022)
Specimen size: 7.1 × 5.9 × 2.9 cm = 2.80” × 2.32” × 1.14”
Price: €1600 / US$1704 / ¥261050 / AUD$2620

CA14AJ7: Germanite

Typical granular Germanite aggregate with a polished surface to better appreciate the characteristics of this rare copper, iron and germaniun sulphosalt. With a pinkish gray color and is with Renierite that has a more intense pink color, and black Tennantite. The sample is from the type locality for the species.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia (±1981)
Specimen size: 6.2 × 3.8 × 2.3 cm = 2.44” × 1.50” × 0.91”
Price: [SOLD]

JFD156AO7: Gersdorffite

Except in its top specimens, Gersdorffite is not a species that usually gives showy pieces. This one, although modest, has the elegance of having sharp crystals, hanging from a kind of pinnacle of another Gersdorffite crystal which, although coarser, makes the other crystals look better.
Aït Ahmane, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region Morocco (11/2012)
Specimen size: 3.4 × 2.2 × 1.5 cm = 1.34” × 0.87” × 0.59”

Main crystal size: 1.2 × 1.1 cm = 0.47” × 0.43”
Price: [SOLD]

AB37AL3: Gersdorffite

Group of very sharp octahedral Gersdorffite crystals of good size, with polycrystalline growths on the surfaces of the faces.
Aït Ahmane, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region Morocco (±2010)
Specimen size: 4.1 × 3.2 × 1.3 cm = 1.61” × 1.26” × 0.51”
Price: €230 / US$244 / ¥37520 / AUD$370

EJ66T4: Gersdorffite with Calcite

From a recent find this same year. The octahedral crystals, with very well defined faces and edges, have a considerable size for the species and are unusually fresh and bright. They are on matrix, with Calcite that has not been acid-etched.
Aït Ahmane, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region Morocco (03/2011)
Specimen size: 5.2 × 4.7 × 4.1 cm = 2.05” × 1.85” × 1.61”

Main crystal size: 1.4 × 1.2 cm = 0.55” × 0.47”
Price: [SOLD]

EV99Y2: Gersdorffite with Calcite

Very aerial aggregate of very sharp octahedral crystals. They are extraordinarily bright, a very uncommon quality for the species, and it is on matrix, with Quartz.
Aït Ahmane, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region Morocco (11/2012)
Specimen size: 7.3 × 5 × 2.3 cm = 2.87” × 1.97” × 0.91”
Price: [SOLD]

EM49T0: Gersdorffite with Calcite and Annabergite

A novelty at Sainte Marie-aux-Mines 2011. Very aerial group of sharp octahedral crystals of Gersdorffite. They are bright and are on a matrix of Calcite, with thin coatings of slightly green Annabergite.
The specimen has been reviewed, photographed and published as a new discovery in the magazine ‘Mineral Up’ on page 29 in number 2011/2
Aït Ahmane, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region Morocco (03/2011)
Specimen size: 6.2 × 5.8 × 3.7 cm = 2.44” × 2.28” × 1.46”

Main crystal size: 0.9 × 0.9 cm = 0.35” × 0.35”
Price: [SOLD]

EY89Y2: Gersdorffite with Calcite and Quartz

Very sharp octahedral crystal, of a large size for the species. It is extraordinarily bright, a very uncommon quality for the species, and it is on a Quartz matrix. It has a small contact on one of the lower vertices and the whole back side.
Aït Ahmane, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region Morocco (11/2012)
Specimen size: 4 × 2.8 × 2.2 cm = 1.57” × 1.10” × 0.87”
Price: [SOLD]

MB26AN2: Gersdorffite with Nickeline and Annabergite

Large group of octahedral Gersdorffite crystals of good size, very sharp, isolated and lustrous. On a Nickeline matrix, which guarantees stability to the whole piece, and small green Annabergite coatings. Simply exceptional.
Aït Ahmane, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region Morocco (04/2017)
Specimen size: 16 × 11.2 × 10.7 cm = 6.30” × 4.41” × 4.21”

Main crystal size: 2 × 1.8 cm = 0.79” × 0.71”
Price: [SOLD]

RQ61AE6: Getchellite with Realgar and Orpiment

Masses of partial crystals and foliation surfaces of Getchellite that have a very intense vermillion color. They are on matrix with crystalline Realgar that has a more bloody red color, and with radial leafy Orpiment aggregates.
The sample is from the Joaquín Folch duplicates collection, whose label we’ll send to the buyer.
Getchell Mine, Adam Peak, Potosi District, Osgood Mountains, Humboldt County, Nevada USA (±1976)
Specimen size: 6.8 × 5.8 × 4 cm = 2.68” × 2.28” × 1.57”
Price: [SOLD]

EF7T0: Gismondine with Calcite, Epidote and Chlorite

A novelty at Sainte Marie-aux-Mines 2011. Sharp and very well individualized white dipyramidal crystals of Gismondine, one of them clearly dominant, with very well defined faces and edges. On matrix, with bluish Calcite, Epidote and Chlorite.
The specimen has been reviewed, photographed and published as a new discovery in the magazine ‘Mineral Up’ on page 29 in number 2011/2
Vedretta della Miniera, Val Zebrù, Valfurva, Sondrio, Lombardia, Italia Italy (09/2010)
Specimen size: 4.6 × 3.5 × 3.7 cm = 1.81” × 1.38” × 1.46”

Main crystal size: 0.6 × 0.6 cm = 0.24” × 0.24”
Price: [SOLD]

NH7AC2: Goethite

Botryoidal growths with intense metallic-iridescent patinas, very bright and showing strongly contrasting coloration, with dominant red, yellowish and orange shades. These growths contrast with a later phase with smaller and grayish botryoidal forms. The sample is from a famous 2007 find.
Filón Sur open pit, Minas de Tharsis, Tharsis, Alosno, Comarca El Andévalo, Huelva, Andalusia Spain (05-10/2007)
Specimen size: 3.2 × 2.7 × 1.7 cm = 1.26” × 1.06” × 0.67”
Price: €40 / US$42 / ¥6520 / AUD$60

NC9AM1: Goethite

Compared to other Goethites in southern Spain, those from the La Lapilla mine stand out for their delicate lattice growths and very fine arched structures, sometimes almost filamentous, which adds to the quality of their soft iridescence, with pastel blue, ocher, and reddish, although greyish metallic reflections predominate.
La Lapilla Mine, La Lapilla, Alosno, Comarca El Andévalo, Huelva, Andalusia Spain (03-04/2008)
Specimen size: 6.2 × 4.2 × 0.7 cm = 2.44” × 1.65” × 0.28”
Price: [SOLD]

NP8AC2: Goethite

NY57AC2: Goethite

Botryoidal stalactitic aggregate with intensely metallic-iridescent patinas, very bright and showing strongly contrasting coloration, with dominant yellowish and orange shades. These growths contrast with a later phase with smaller and grayish-red botryoidal forms. The sample is from a famous 2007 find.
Filón Sur open pit, Minas de Tharsis, Tharsis, Alosno, Comarca El Andévalo, Huelva, Andalusia Spain (05-10/2007)
Specimen size: 8.3 × 4.7 × 4 cm = 3.27” × 1.85” × 1.57”
Price: [SOLD]

DD62AH2: Goethite

Extraordinarily bright botryoidal aggregate with some iridescent areas with predominant yellow and blue shades. The sample is from a locality considered a Spanish classic for Goethite, but where such bright samples with iridescent surfaces were quite rare.
The Daunis collection was, in the 70’s and the 80’s, a reference for the local prospectors of the Barcelona area.
La Arboleda Mines, La Arboleda (Zugaztieta), Valle de Trápaga/Trapagaran, Comarca Gran Bilbao, Vizcaya / Bizkaia, Basque Country (Euskadi) Spain
Specimen size: 8.7 × 5 × 4.8 cm = 3.43” × 1.97” × 1.89”
Price: [SOLD]

12535 results found.

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