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Very aerial floater group of sharp Borcarite crystals, a very rare borate-carbonate. The crystals show well defined shapes, are translucent, with a uniform green color, and are partially covered by small, sharp white crystals of Cahnite, another very rare arsenate. Exceptional!
The specimen has been reviewed, photographed and published in the Russian magazine ‘Mineral Observer’ on page 86 in the volume 26/2021, number 1
Shijiangshan Mine, Yinwu, Linxi, Ulanhad League, Inner Mongolia Autonomous Region China (2011)
Specimen size: 3 × 1.6 × 1.1 cm = 1.18” × 0.63” × 0.43”
Price: [SOLD]

EM90Y3: Borcarite with Cahnite

Very aerial group of sharp and very well defined crystals of Borcarite, a rare borate-carbonate. They have a very uniform green color and are partially coated by small crystals, between colorless and white, of Cahnite, an arsenate also considered as very rare.
Shijiangshan Mine, Yinwu, Linxi, Ulanhad League, Inner Mongolia Autonomous Region China (2011)
Specimen size: 2.6 × 1.7 × 1.5 cm = 1.02” × 0.67” × 0.59”

Main crystal size: 1.6 × 1 cm = 0.63” × 0.39”
Price: [SOLD]

TY68AJ3: Bornite

Aerial group of cubic-shaped crystals with small octahedral faces and parallel polycrystalline growths. They are bright, with vivid iridescences of dominant blue and green shades. An excellent classic, an “oldie” of English mineralogy.
Carn Brea, Pool, Illogan, Camborne - Redruth - Saint Day District, Cornwall England / United Kingdom
Specimen size: 4.4 × 3.5 × 3.4 cm = 1.73” × 1.38” × 1.34”
Price: [SOLD]

TC52C6: Bornite

This specimen merits a careful description. Bornite crystals usually tends to be small, black, ugly and not very sharp. Well, this specimen shows is colorful nature due to an iridescent alteration of a thin covering, its crystals are pretty huge and extremely sharp for the species. You can appreciate its beauty in the photo. Plus the specimen is a floater with a small Bornite crystal just on the top corner of the specimen. Just great!
65 Mine, level 60, Dzhezkazgan Kazakhstan (2002)
Specimen size: 5.2 × 2.3 × 2.2 cm = 2.05” × 0.91” × 0.87”

Main crystal size: 2.5 × 2.2 cm = 0.98” × 0.87”
Price: [SOLD]

SM160NYG: Bornite after Chalcocite

Bornite with bluish metallic tones pseudomorphic after twinned crystals of Chalcocite. The specimen comes from the last find before the definitive closure of open-pit mining here, and this is the first time that collector quality Bornite has appeared at this locality. These specimens has been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (01/2020)
Specimen size: 4.2 × 2.4 × 1 cm = 1.65” × 0.94” × 0.39”
Price: €160 / US$170 / ¥26100 / AUD$260

SM160NLN: Bornite after Chalcocite

Bornite with bluish metallic tones pseudomorphic after twinned crystals of Chalcocite. The specimen comes from the last find before the definitive closure of open-pit mining here, and this is the first time that collector quality Bornite has appeared at this locality. These specimens has been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (01/2020)
Specimen size: 2.4 × 2.3 × 2 cm = 0.94” × 0.91” × 0.79”

Main crystal size: 1.3 × 1.1 cm = 0.51” × 0.43”
Price: €160 / US$170 / ¥26100 / AUD$260

NGB27AN4: Bornite after Chalcocite

Bluish Bornite pseudomorphs after twinned Chalcocite crystals. The specimen comes from the last find before the definitive closure of open-pit mining at this mine and shows, for the first time from this locality, Bornite in collection-quality specimens. These specimens have 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' section, report 61, August 30, 2021 edition, page 9
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (01/2020)
Specimen size: 2.5 × 1.8 × 1.4 cm = 0.98” × 0.71” × 0.55”
Price: [SOLD]

SM230NM: Bornite after Chalcocite

Bornite with bluish metallic tones pseudomorphic after twinned crystals of Chalcocite. The specimen comes from the last find before the definitive closure of open-pit mining here, and this is the first time that collector quality Bornite has appeared at this locality. These specimens has been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (01/2020)
Specimen size: 2.5 × 1.8 × 2.6 cm = 0.98” × 0.71” × 1.02”

Main crystal size: 1.6 × 1.6 cm = 0.63” × 0.63”
Price: [SOLD]

NK87AJ8: Bornite after Chalcocite

Aggregate of two Bornite (apparently after Chalcocite) crystals, both very well defined but with two very different shapes, one of them prismatic with a polycrystalline termination, while the second one is clearly tabular and forming a cyclic (“sixling”) twin.
The sample, an old English classic, is from the Carlos Prieto collection whose handwritten label we will send to the buyer.
Cornwall England / United Kingdom
Specimen size: 2.1 × 1.4 × 1.6 cm = 0.83” × 0.55” × 0.63”
Price: [SOLD]

NC57AM4: Bornite after Chalcocite and Tennantite-(Fe)

Bornite crystals pseudomorphic after Chalcocite twins, with a bronze color, with tetrahedral crystals of Tennantite-(Fe) and twins of Chalcocite that are shiny and have bluish metallic tones. The specimen comes from the last find before the definitive closure of open-pit mining here, and this is the first time that collector quality Bornite has appeared at this locality.
This material has been analyzed and we will send a copy of the analysis to the buyer.
The specimen has been reviewed, photographed and published as a new discovery in the magazine ‘Mineralogical Record’ on page 206 in the volume 52, number 2, March-April 2021
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (01/2020)
Specimen size: 7.4 × 6.6 × 5 cm = 2.91” × 2.60” × 1.97”

Main crystal size: 0.7 × 0.3 cm = 0.28” × 0.12”
Price: [SOLD]

TC220NZ: Bornite after Chalcocite and with Calcite

Group of very sharp Bornite pseudomorphs after Chalcocite crystals, as thick twins with a hexagonal outline, with very well defined faces and edges, brilliant and with intense metallic iridescence. The Bornite appears on a matrix with Calcite crystal coatings. These specimens have been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (01/2020)
Specimen size: 7.1 × 5.3 × 2.6 cm = 2.80” × 2.09” × 1.02”
Price: €220 / US$234 / ¥35890 / AUD$360

NMC62AN4: Bornite after Chalcocite with Pyrite

Bluish Bornite pseudomorphs after twinned Chalcocite crystals. The specimen comes from the last find before the definitive closure of open-pit mining at this mine and shows, for the first time from this locality, Bornite in collection-quality specimens. These specimens have been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (01/2020)
Specimen size: 7.8 × 6.6 × 3.5 cm = 3.07” × 2.60” × 1.38”

Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”
Price: [SOLD]

SM380NAP: Bornite after Chalcocite with Sb-bearing Tennantite-(Fe)

Very lustrous antimony-bearing Tennantite-(Fe) and Bornite with bluish metallic tones pseudomorphic after twinned crystals of Chalcocite. The specimen comes from the last find before the definitive closure of open-pit mining here, and this is the first time that collector quality Bornite has appeared at this locality. These specimens has been analyzed and we will send a copy of both analysis to the buyer.
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (01/2020)
Specimen size: 12.5 × 7.1 × 2.5 cm = 4.92” × 2.80” × 0.98”
Price: [SOLD]

RD11Z8: Bornite with Chalcocite

Aggregate of small crystals with very well defined faces and edges, and with iridescences of a dominant bluish color. A good thumbnail of an English classic.
Carn Brea, Pool, Illogan, Camborne - Redruth - Saint Day District, Cornwall England / United Kingdom
Specimen size: 2.4 × 1.6 × 1.1 cm = 0.94” × 0.63” × 0.43”
Price: [SOLD]

CR63AN1: Bornite with Quartz

Tristetrahedral Bornite crystal with sharp crystal forms, bright metallic luster and intense iridescence, on matrix, with Quartz. This specimen comes from the Carles Curto collection, whose label and computer catalogue entry we will send to the buyer.
Bleida Mine, Tinzouline, Zagora Province, Drâa-Tafilalet Region Morocco (±1980)
Specimen size: 3.7 × 2 × 1.7 cm = 1.46” × 0.79” × 0.67”
Price: [SOLD]

MJ66AN0: Bornite with Quartz

Group of Bornite crystals, one of them clearly dominant, with very sharp crystal forms, with bright luster and blue metallic iridescence, on a Quartz crystal matrix. We will ship the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label.
Dzhezkazgan Mine, Dzhezkazgan, Karaganda Region Kazakhstan
Specimen size: 2.7 × 2.7 × 2.6 cm = 1.06” × 1.06” × 1.02”

Main crystal size: 1 × 0.9 cm = 0.39” × 0.35”
Price: [SOLD]

S177S: Bornite with Quartz

Very unusual crystals of Bornite on quartz - we have never seen another specimen with this crystallography from this locality. Well positioned on the quartz and esthetic.
Dzhezkazgan Kazakhstan (1997)
Specimen size: 5.5 × 4.5 cm = 2.17” × 1.77”
Price: [SOLD]

TC2220MXL: Botallackite

Druse of very sharp Botallackite crystals, translucent, lustrous, and with an intense green color, on matrix. Botallackite, a copper chloride, is one of the rare species that made the mining region in Cornwall famous although, curiously, these botallackites in particular have been found this century
Cligga Head, Perranzabuloe, St Agnes District, Cornwall England / United Kingdom
Specimen size: 4.7 × 4.1 × 3 cm = 1.85” × 1.61” × 1.18”

Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”
Price: [SOLD]

MD98M8: Botallackite

Very well defined crystals, bright and of excellent color, of considerable size for this rare species. It comes from a very classic locality recently rediscovered. Crystals are on Limonite matrix.
Cligga Head, Perranzabuloe, St Agnes District, Cornwall England / United Kingdom (04/2007)
Specimen size: 7.5 × 4.2 × 3.6 cm = 2.95” × 1.65” × 1.42”
Price: [SOLD]

TA12: Botallackite

When we got this specimen we were afraid that it wasn't the species on the label. Too fresh and too nice to be it. After analysis we breathed a sigh of relief. It is Botallackite and we are now able to offer the analysis with it. We are proud to be able to present this quality specimen of this rare mineral.
Levant Mine, 24-fathom level, Trewellard, Saint Just District, Cornwall England / United Kingdom (±1965)
Specimen size: 5.6 × 4.3 × 1 cm = 2.20” × 1.69” × 0.39”
Price: [SOLD]

EG57AL4: Boulangerite with Rhodochrosite and Galena

Felted aggregate of Boulangerite crystals, on matrix, with sharp rhombohedral Rhodochrosite crystals and polycrystalline Galena growths.
Stan Trg (Stari Trg) Mine, Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District Kosovo (2012)
Specimen size: 7.7 × 6.9 × 4.1 cm = 3.03” × 2.72” × 1.61”
Price: [SOLD]

TH26AN1: Bournonite

Twinned Bournonite crystal with a prismatic habit, with sharp crystal forms and very lustrous. We will ship the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label.
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province China
Specimen size: 1.9 × 1.1 × 0.5 cm = 0.75” × 0.43” × 0.20”
Price: [SOLD]

MY96AJ1: Bournonite

Parallel group of very sharp, twinned Bournonite crystals with very well defined and bright faces and edges. An excellent miniature, a German classic from the Thomas P. Moore collection whose label we will send to the buyer.
Georg Mine, Horhausen, Flammersfeld, Altenkirchen (Westerwald), Siegerland, Rhineland-Palatinate/Rheinland-Pfalz Germany
Specimen size: 3 × 2 × 1.9 cm = 1.18” × 0.79” × 0.75”
Price: €180 / US$191 / ¥29360 / AUD$290

EV37Y9: Bournonite

Irregular aggregate of twinned thick tabular crystals with very well defined faces and edges. A French classic of excellent quality.
Les Malines mining district, Saint-Laurent-le-Minier, Le Vigan, Gard Department, Occitanie France
Specimen size: 7.1 × 4.8 × 2.8 cm = 2.80” × 1.89” × 1.10”

Main crystal size: 2 × 1.7 cm = 0.79” × 0.67”
Price: [SOLD]

MJ4B6: Bournonite

Flat and unusual habit associated with minor sugary Quartz crystals, Pyrite and Siderite.
Machacamarca Mine, Machacamarca, Machacamarca District, Cornelio Saavedra Province, Potosí Department Bolivia (2001)
Specimen size: 3.7 × 3.6 cm = 1.46” × 1.42”
Price: [SOLD]

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