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Gallery 9  Copper Mineral Specimens

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Cuprite on Copper, Cornwall, England, United KingdomCuprite on Copper, Cornwall, England, United Kingdom
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C-241  Cuprite on Copper  $135

Cornwall, England, UK

6 x 4.2 x 3.1 cm.

This is an old, classic Cuprite specimen from one of the most famous areas in the world for the species.  It is comprised of sharp, red-colored, millimeter-sized crystals of Cuprite richly covering a matrix of Copper crystals.  This specimen is well over 100 years old and can be dated by the F. Krantz label that accompanies the specimen.  A great old-time, classic mineral specimen.


Chrysocolla pseudomorph after Boleite, Boleo District, Santa Rosalia, Baja California Sur, Mexico
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C-261  Chrysocolla pseudomorph after Boleite  $50

Boleo District, Santa Rosalía, Municipio de Mulegé, Baja California Sur, Mexico

4.2 x 3.6 x 2 cm

Here we present a Chrysocolla pseudomorph after cubic crystals of Boleite.  These rare pseudomorphs were discovered a around 8-9 years ago, in an area nearer the Amelia Mine (not at the mine itself).  This specimen exhibits the form of the replaced Boleite nicely, a feature you don't always get when it comes to pseudomorphs.  I've been told that since 2010 they have not been able to recover any new specimens.


Malachite stalactite, Mashamba West Mine, Kolwezi District, Katanga, Democratic Republic of the CongoMalachite stalactite, Mashamba West Mine, Kolwezi District, Katanga, Democratic Republic of the Congo
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M-061  Malachite stalactite  $225

Mashamba West Mine, Kolwezi District, Katanga, Democratic Republic of the Congo

12.3 x 2.3 x 2 cm.

A fantastically shaped large Malachite stalactite from a famous locale.  Some of the finest Malachite specimens known have come from Katanga in the Congo.  Famous for its stalactitic Malachite; specimens from here are highly prized by collectors.  This stalactite has a narrow hollow tube in its center, from the base all the way up to its tip.  The specimen also has a matte finish and a striking, bulbous, non-linear form.  One of the more unusual and striking single Malachite stalactites that I've seen.


Brochantite, Mount Oxide Copper Mine, Mount Gordon, Gunpowder District, Mount Isa, Queensland, Australia
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B-208  Brochantite  $40

Mount Oxide Copper Mine, Mount Gordon, Gunpowder District, Mount Isa, Queensland, Australia

8.5 x 4.6 x 4 cm.

This specimen features crystals of bright, vividly-colored crystals of Brochantite thickly covering a silceous gossan matrix.  This specimen will add a shot of color to your mineral collection.


Copper, Iriquois Mine, Mohawk, Keweenaw County, MichiganCopper, Iriquois Mine, Mohawk, Keweenaw County, Michigan
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C-230  Copper  $95

Iroquois Mine, Mohawk, Keweenaw County, Michigan

7.6 x 6.7 x 2.5 cm.

A chunky example of Michigan float Copper, which refers to to glacially transported native Copper.  This specimen has visible striations caused by glacial scouring.  This same event accounts for the slightly mashed or slightly rounded form.  Despite this, the specimen still exhibits some of its original crystalline form.


Chrysocolla & Malachite pseudomorph after Azurite, Lupoto Mine, Kakumba, Kipushi, Katanga, Democratic Republic of the CongoChrysocolla & Malachite pseudomorph after Azurite, Lupoto Mine, Kakumba, Kipushi, Katanga, Democratic Republic of the Congo
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C-247  Chrysocolla & Malachite pseudomorph after Azurite  $165

Lupoto Mine, Kakumba, Kipushi, Katanga, Democratic Republic of the Congo

6.7 x 6.3 x 5.4 cm.

Here we have a striking and colorful specimen of needle-like groups of medium-blue Chrysocolla which has overgrown pseudomorphs of Malachite after Azurite on a gossan matrix.  I think these fairly new specimens from Lupoto are quite attractive based upon not only their fantastic color, but the fact that there are at least three generations of mineralization here.  Initially the piece consisted of prismatic Azurite crystals, which were replaced by Malachite, and then a final generation of Chrysocolla came over the top. The largest individual pseudomorph measures 3centimeters.  They are also pretty cool-looking due to the numerous spikes of Chrysocolla that protrude from the specimen like so many cactus needles.


Copper, Zarkashan Mountain, Ghanzi Province, AfghanistanCopper, Zarkashan Mountain, Ghanzi Province, Afghanistan
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C-233  Copper  $70

Zarkashan Mountain, Ghanzi Province, Afghanistan

10 x 7 x 3 cm.

When one thinks of minerals from Afghanistan one thinks of Kunzite, Tourmaline, Lazurite and the other "sexy" minerals.  What many people don't realize is that Afghanistan's mineral wealth is much broader and deeper than that.  The mineral wealth of Afghanistan has just begun to be exploited.  I submit this specimen that is richly included with coarsely crystallized Copper as proof.  I hope that the future will see many more examples of the "other" minerals of Afghanistan.


Conichalcite with Calcite, Hilarion Mines, Agios Konstantinos, Lavrion District, Attikí Prefecture, Greece
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C-248  Conichalcite & Malachite with Calcite  $30

Hilarion Mine, Agios Konstantinos, Lavrion District, Attikí Prefecture, Greece

4.7 x 3.4 x 2.4 cm.

A vuggy specimen of the two copper minerals, Conichalcite and Malachite.  This vibrantly colored specimen features well-formed crystals of calcite as well which add a nice accent to the piece.


Copper, Cape d'Or, Nova Scotia, CanadaCopper, Cape d'Or, Nova Scotia, Canada
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C-220  Copper  $45

Cape d'Or, Cumberland County, Nova Scotia, Canada

6 x 2.4 x 1 cm.

The Cape D'Or area in Nova Scotia has produced some very beautiful and aesthetic Copper specimens over the years.  The prominent cliffs of the cape are Triassic age Basalts.  Several separate lava flows occurred, and there is evidence that some erosion occurred between flows.  At least six separate flows can be counted at Cape D'Or.  Although small amounts of copper have been found in the basalts at various localities around the Bay of Fundy, the area around Cape D'Or the has the highest concentration.  The specimens of Copper from Cape d'Or are considered to be very collectible.


Atacamite with Halloysite, La Farola Mine, Cerro Pintado, Copiapó Province, Atacama Region, Chile
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Atacamite with Halloysite, La Farola Mine, Cerro Pintado, Copiapó Province, Atacama Region, Chile

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A-071  Atacamite & Halloysite  $120

La Farola Mine, Cerro Pintado, Copiapó Province, Atacama Region, Chile

12 x 7 x 4 cm.

This attractive, two-sided specimen features numerous lustrous sprays of the copper mineral Atacamite.  Accenting the front side of this specimen is a band of off-white Halloysite and a matted covering of needle-like crystals of an unidentified mineral on the lower left portion of the specimen.  The rear of this specimen features many sprays of Atacamite on a background of blebby, off-white Halloysite.


Cuprite variety Chalcotrichite on Copper, Ray Mine, Mineral Creek District, Pinal County, ArizonaCuprite variety Chalcotrichite on Copper, Ray Mine, Mineral Creek District, Pinal County, Arizona
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C-140  Cuprite variety Chalcotrichite on Copper  $50

Ray Mine, Mineral Creek District, Pinal County, Arizona

8.5 x 5 x .7 cm.

A dramatic matrix specimen of Copper accented by millimeter sized Cuprite crystals as well as acicular sprays of the variety of Cuprite, Chalcotrichite.  A great mineral specimen from a classic U.S. mineral locality.  While it looks spectacular when viewed by the naked eye, you will be amazed at the complexity of the crystallization of the Cuprite on this specimen when viewed by loupe or by microscope.


Malachite, Chrysocolla & Calcite, Katanga Copper Zone, Katanga, Congo
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M-022  Malachite, Chrysocolla & Calcite  $60

Katanga Copper Zone, Katanga, Congo

5.5 x 6.7 x 4 cm.

This Specimen features the classic Katanga matrix of Chrysocolla and Calcite upon which is perched a cluster of wedge-like Malachites. The wedges are so dense at their centers that they appear black, grading to a velvet fuzz at their tips


Azurite, Malbunka Copper Mine, Areyonga, Northern Territory, Australia
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A-087  Azurite  $65

Malbunka Copper Mine, Areyonga, Northern Territory, Australia

8 x 3.8 x 3.5 cm.

These Azurite “suns” from the Malbunka Copper Mine form in a fashion that is unlike any other Azurites that I've seen.  These flattened discs of Azurite are formed between layers of Kaolinite which forced them to grow in a laterally compressed, radiating manner.  The Azurite on this specimen has a beautiful blue color and an interesting texture.  The Azurite is much thicker than was on specimens recovered in earlier years from this famous location.


Azurite, Malbunka Copper Mine, Areyonga, Northern Territory, Australia
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A-088  Azurite  $80

Malbunka Copper Mine, Areyonga, Northern Territory, Australia

6.3 x 4.4 x 2.3 cm.

These Azurite “suns” from the Malbunka Copper Mine form in a fashion that is unlike any other Azurites that I've seen.  These flattened discs of Azurite are formed between layers of Kaolinite which forced them to grow in a laterally compressed, radiating manner.  The Azurite on this specimen has a beautiful blue color and an interesting texture.  The Azurite is much thicker than was on specimens recovered in earlier years from this famous location.


Brochantite and Malachite on Barite, Blanchard Mine, Socorro County, New MexicoBrochantite and Malachite on Barite, Blanchard Mine, Socorro County, New Mexico
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B-123 Brochantite and Malachite on Barite $40

Blanchard Mine, Socorro County, New Mexico

9 x 6.5 x 3 cm.

This mineral specimen features a pair of Copper minerals on a matrix of Barite.  Most abundant on this specimen are numerous sprays of the mineral Brochantite.  A great looking specimen on it's own, but if viewed under a microscope it is even more exciting.


Copper, White Pine Mine, Ontonagon County, MichiganCopper, White Pine Mine, Ontonagon County, Michigan
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C-185  Copper  $75

White Pine Mine, Ontonagon County, Michigan

8.6 x 7 x 1 cm.

Here we offer a fine, sculptural sheet of native copper from the White Pine Mine of Michigan.  This specimen is as bright as a newly minted penny.  This copper specimen came out of the earth just like this, having formed as a thin seam running through layered shale matrix. The White Pine was one of the country’s largest copper mines dating back to 1880 and was worked until 1995.  Once readily available these “sheet Coppers” are scarce these days.


Atacamite with Pseudomalachite, La Farola Mine, Cerro Pintado, Copiapó Province, Atacama Region, Chile
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A-070  Atacamite with Pseudomalachite & Gypsum  $90

La Farola Mine, Cerro Pintado, Copiapó Province, Atacama Region, Chile

11 x 8.5 x 3 cm.

This attractive matrix specimen features numerous, lustrous sprays of the copper mineral Atacamite accented by minute mounds and balls of the copper mineral Pseudomalachite.  Resembling a snow-capped mountain, the top portion of this specimen is a blanketed with Gypsum.


Cuprite with Chrysocolla, Mashamba West Mine, Kolwezi, Katanga, Congo
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C-113  Cuprite with Chrysocolla  $60

Mashamba West Mine, Kolwezi, Katanga, Congo

6 x 5.5 x 3 cm.

This matrix specimen of the Copper oxide mineral Cuprite is crowned by a 1.5 x 1.6 x 1.3 cm. pair of interpenetrating Cuprite crystals that have a slight metallic luster and show a hint of red near their termination. The matrix also has a coating of pale bluish Chrysocolla and a minor amount of dark green Malachite, making for a nice contrast of colors.  This classic locality is no longer producing these classic Cuprite specimens.


Malachite pseudomorph after Azurite, Sir Dominick Mine, South Australia, Australia
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AD-114  Malachite pseudomorph after Azurite  $35

Sir Dominick Mine, South Australia, Australia

4 x 3.2 x 2.4 cm.

An excellent, complete all-around floater, rosette-like nodule of Malachite pseudomorphing sharp, bladed Azurite crystals from the famous Sir Dominick Mine of South Australia.  This old classic Australian copper mine was active from 1862-1920.  You can see a tiny remaining spot of blue from the Azurite in the center, near the bottom.


Atacamite & Pseudomalachite, La Farola Mine, Cerro Pintado, Copiapo Province, Atacama Region, Chile
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A-047  Atacamite with Pseudomalachite  $75

La Farola Mine, Cerro Pintado, Copiapó Province, Atacama Region, Chile

8 x 5 x 2 cm.

Here is an example of Chile's signature mineral, Atacamite. This vividly-colored specimen features a multitude of Atacamite crystals, many of which are encrusted with the mineral Pseudomalachite. Good-looking specimens of Atacamite are increasingly harder to find these days.