Mineral Specimens with Chalcopyrite

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NEX27 - Covellite with Chalcopyrite - $ 800
Summitville, Colorado, USA
cabinet, 10 x 6.8 x 2 cm

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Covellite with Chalcopyrite from Summitville, Colorado, USA [db_pics/pics/nex27a.jpg]

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Covellite with Chalcopyrite from Summitville, Colorado, USA [db_pics/pics/nex27b.jpg]

This specimen consists of coarsely crystallized, bladed, intergrown groups of deep blue, covellite, to 3.0 cm across. That in turn is studded with brassy, lustrous, chalcopyrite, to .7 cm across. Large and rich for the locality!!!

NEX41 - Sphalerite on Chalcopyrite and Quartz - $ 1800
Oppu Mine, Aomori Pref., Japan
small cabinet, 5.5 x 5.4 x 4 cm

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ex. Dr. Eugene Meieran

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Sphalerite on Chalcopyrite and Quartz from Oppu Mine, Aomori Pref., Japan [db_pics/pics/nex41a.jpg]

A well formed, lustrous, golden-brown crystal of sphalerite, 3.5 cm across, sits majestically on white quartz and sharply crystallized, brassy, chalcopyrite crystals, to 2 cm across. BETTER IN PERSON, this is a combination of flashy metallic hues with some white contrsat at the edges! It is a spectacular display specimen and for quality from this old locality, is something rare on the market today. I do not know how old it is, only tha tI am told these are generally pre-1950 and certainly I do not see pieces of this magnitude pop up often. This is certainly one of the best combo specimens I have seen from Japan. It was long in Gene Meieran's sulphide collection before I traded it out of him.

OLDEURO-123 - Chalcopyrite - SOLD
Pfaffenberg Mine, Neudorf, Saxony-Anhalt, Germany
miniature, 5.5 x 3.8 x 2.5 cm

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A sharp 9mm twinned crystal of chalcopyrite on matrix - actually quite uncommon for Neudorf, which is better known for its fanstastic galena crystals.

OLDEURO-31 - Chalcopyrite on Siderite - $ 300
Neudorf, Saxony-Anhalt, Germany
miniature, 5.3 x 4.7 x 2.2 cm

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A very fine chalcopyrite for the locality, with sharp crystals to over 1 cm perched on crystallized siderite matrix.

PAS-60 - Chalcopyrite var. Blister Copper - $ 2500
Bristol Copper Mine, Bristol, Hartford Co., Connecticut, USA
cabinet, 9.7 x 7.5 x 4.8 cm

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ex. Philadelphia Academy of Natural Sciences

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This mine was founded in 1837 and mined continuously at peak production through the US Civil War, reaching its heyday by 1900 although it remained open until 1953. Here we have a historic, significant, and luckily gorgeous specimen of the botryoidal variety of chalcopyrite called "blister copper" by the miners. It is the finest such example I have seen for sale on the market, outside of the museum collections on the East Coast. It is colorful, 3-dimensional, and large. It is also complete all around. As they are heavy and ore-rich, and were not thought as collectible at the time as the sharp chalcocites from this old mining locality, ironically fewer specimens probably survive today. At least, I see them even less on the market than the equally historic chalcocites, so this is my assumption as to why. NOTE: THE HANDWRITTEN LABEL IS FROM WILLIAM SANSOM VAUX!

PB43 - Chalcopyrite coated with Tetrahedrite on Quartz - $ 250
Animon Mine,Huaron District,Peru
small cabinet, 9 x 7.8 x 5.5 cm

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ex. Peter Bancroft

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Large, pyramidal, slate-gray crystals of Chalcopyrite coated with Tetrahedrite , to 3.5 cm in length, have grown in and around translucent, pastel gray, crystals of quartz which reach the same length. There does not appear to be any damage or contact except at the extreme periphery of this matrix specimen. The cluster just floats up there, perfect as can be! Very rare in such aesthetic form!

RAR09-MF02 - Chalcopyrite - SOLD
St. Marie Aux Mines, Alsace, France
cabinet, 10.6 x 8.2 x 6.3 cm

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ex. Dr. Mark Feinglos Collection A surprisingly large and fine chalcopyrite from this ancient mining district, probably dating (i am told) to the late 1700s or very early 1800s! This large display piece is a major French classic, and comes with a historic old label (though we do not know whose it was). The large cluster atop is fully 2 inches across, and is possibly twinned. THis is a major chalcopyrite for any European locality, but we see particularly few old specimens from the St. Marie mines as opposed to German or English material which came out in a time an dplace where more collectors hoarded it away for the future.

RH02-51 - Chalcopyrite coating Calcite - SOLD
Pribram, Bohemia, Czech Republic
cabinet, 9.9 x 5.0 x 6.0 cm

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ex. Richard Hauck

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Chalcopyrite coating Calcite from Pribram, Bohemia, Czech Republic [db_pics/pics/rh02-51a.jpg]

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Chalcopyrite coating Calcite from Pribram, Bohemia, Czech Republic [db_pics/pics/rh02-51b.jpg]

Very aesthetic group of chalcopyrite coated calcite crystals, with the largest crystal being more than 4cm across. The chalcopyrite appears to have preferentially coated only certain faces on the calcites. In addition, it appears that secondary calcite growth may have also covered some of the chalcopyrite. Slight contacting along some of the crystal edges can be observed but is forgiveable given the size and age and overall beauty, i think! A couple of old collection labels are included.

RH1-19 - Chalcopyrite (twinned) - $ 350
Alice Mine, Clear Creek Co., Colorado, USA
thumbnail, 3.2 x 2.5 x 2.1 cm

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ex. Richard Hauck

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Once in the superb Colorado collection of Mitch Gunnell, this is a cluster of large, intergrown, brassy, lustrous, sharply twinned, chalcopyrite crystals. Super locality piece!!!

RH3-49 - Chalcopyrite - $ 85
San Martin Mine, Zacatecas, Mexico
thumbnail, 2.2 x 1.9 x 1.5 cm

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This is a thumbnail size cluster of brassy, lustrous, sphenoidal crystals of chalcopyrite, to 1.5 cm across. Nearly pristine! The largest crystal does have a tiny wilber at one termination, but I think it its unimportant.

RHQTZ-45 - Quartz with Chalcopyrite - SOLD
Cornwall, England
small cabinet, 8.2 x 7.3 x 5.1 cm

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ex. Richard Hauck

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An interesting old English piece, with quartz crystals soaring up from an (unusual) pyrite-rich matrix. Small "chalcpoyrites" which I believe to actually be tetrahedrite, are intermixed near the base of the quartz crystals and within them, on the matrix.

RLU4 - Fluorite on Chalcopyrite - SOLD
Panasquiera, Portugal
miniature, 5.2 x 4.6 x 2.6 cm

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Fluorite on Chalcopyrite from Panasquiera, Portugal [db_pics/pics/rlu4a.jpg]

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Fluorite on Chalcopyrite from Panasquiera, Portugal [db_pics/pics/rlu4b.jpg]

An extremely rare specimen of large, isolated FLUORITE crystals from this famous locality for which fluorite is one of the most rare minerals to obtain! And, its aesthetic, to boot. Its the best Panasquiera fluorite I have seen for sale , at least in the states.

SN48 - Chalcopyrite (twinned) - $ 65
San Juan Co., Colorado, USA
thumbnail, 2.4 x 1.6 x 1.2 cm

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ex. Sam Nasser

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Chalcopyrite (twinned) from San Juan Co., Colorado, USA [db_pics/pics/sn48a.jpg]

Sharp, beautiful xl, better in person!.

SN65 - Chalcopyrite and Pyrite on Tetrahedrite - SOLD
Ayachucoa, Peru
thumbnail, 2.6 x 2.4 x 2.2 cm

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ex. Sam Nasser

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Chalcopyrite and Pyrite on Tetrahedrite from Ayachucoa, Peru [db_pics/pics/sn65a.jpg]

A bright, beautiful specimen of tetrahedrite with a coating of golden-colored, sparkling pyrite!.

STOUDT-01 - Polybasite with Chalcopyrite - $ 2500
Chispas Mine (Pedrazzini mine), Arizpe, Mun. de Arizpe, Sonora, Mexico
miniature, 5.5 x 4.3 x 3.2 cm

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ex. David Stoudt

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This is a miniature-sized, impressive example of this classic oldstyle combination which turns admittedly "gray" and dull polybasite into something very beautiful, by the drusy coating of chalcopyrite. So far as I know, this combination only occurs here at this locale in any quality. Or did, some time ago. The crystals here are extremely, unusually, robust. This piece has brilliant lustre and is nearly, though not quite, complete all around (there are just a few very minor rubs or dings on it, minimal in context). It is from the secret personal collection of longtime Mexican dealers Dalton and Consie Prince (now deceased), which Dave Stoudt got the chance to highgrade in the early 2000's. Seldom available in this quality, on the market. Joe Budd photos.

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Rob Lavinsky, rob@irocks.com

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