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Copper Pseudomorphs from Corocoro, Bolivia

For years, Corocoro has been known as one of the most prolific pseudomorph localities in the world for its amazing and unique replacements of Copper after Aragonite.  Typically these specimens are found as loose, single, complete “floater” crystals.  The most common form is pseudo-hexagonal tabular crystals which are actually repeating cyclic twins, so essentially every pseudomorph from this locality is a twinned “floater”, not very common in the mineral world.  These pseudomorphs remain as some of the most characteristic and eye-catching specimens of their kind from any locality. 

Because of the incredible amount of Copper found at this locality, some secondary Copper minerals are bound to occur, and I have tried to note the most obvious ones on each specimen.  I even photographed some of them under the microscope to better illustrate their quality. 

Several of the specimens in this update are as good or better than over 99% of the specimens I have seen in my life from this locality.  Even if you’re familiar with this material, be sure to check them out, as there are a few really impressive pieces in the mix.

Lastly, it must be noted that there hasn't been any significant amount of these specimens on the market in approximately 25 years, and they are often only found in old collections.  Recently I was informed that a Korean mining company has started a large commercial operation at Corocoro, specifically mining for Copper, leaving little possibility that more of these specimens will available in the future, or at least until the mining operation is finished.

 

 


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Copper pseudomorph after Aragonite with Cuprite and Chrysocolla ( Copper pseudomorph after Aragonite with Cuprite and Chrysocolla ( Copper pseudomorph after Aragonite with Cuprite and Chrysocolla ( Copper pseudomorph after Aragonite with Cuprite and Chrysocolla ( Copper pseudomorph after Aragonite with Cuprite and Chrysocolla ( Copper pseudomorph after Aragonite with Cuprite and Chrysocolla (


No. CUPS8101 - $ 500.00

Copper pseudomorph after Aragonite with Cuprite and Chrysocolla ("floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 4.1 x 3.6 x 3.1 cm (miniature)


A rather large, incredibly sharp and well-formed, "floater" specimen of thick, pseudo-hexagonal crystals of Copper replacing Aragonite with minor associated dark red Cuprite and blue-green Chrysocolla. Specimens with such sharpness and form in this size are exceedingly rare. A very worthwhile and impressive display piece of this classic and unique material.

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Copper pseudomorph after Aragonite (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8102a.JPG] Copper pseudomorph after Aragonite (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8102b.JPG] Copper pseudomorph after Aragonite (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8102c.JPG] Copper pseudomorph after Aragonite (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8102d.JPG] Copper pseudomorph after Aragonite (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8102e.JPG]


No. CUPS8102 - SOLD

Copper pseudomorph after Aragonite (on matrix!)

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 4.2 x 4.0 x 2.5 cm (miniature)


A pair of sharp, attractive, pseudo-hexagonal crystals of Copper after Aragonite sit on a rarely seen matrix of sheet-like Copper! Thousands of specimens have come from this locality over the years, and I would venture to say that I have seen no more than 15 pieces on matrix in my life, let alone a PAIR of crystals on matrix. A fantastic miniature display specimen and virtually impossible to find or replace on the market.



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Copper pseudomorph after Aragonite with Cuprite and Chrysocolla (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8103a.JPG] Copper pseudomorph after Aragonite with Cuprite and Chrysocolla (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8103b.JPG] Copper pseudomorph after Aragonite with Cuprite and Chrysocolla (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8103c.JPG] Copper pseudomorph after Aragonite with Cuprite and Chrysocolla (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8103d.JPG] Copper pseudomorph after Aragonite with Cuprite and Chrysocolla (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8103e.JPG] Copper pseudomorph after Aragonite with Cuprite and Chrysocolla (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8103f.JPG]


No. CUPS8103 - $ 450.00

Copper pseudomorph after Aragonite with Cuprite and Chrysocolla (on matrix!)

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 3.7 x 2.9 x 1.8 cm ()
Copper Pseudomorph: 1.8 cm


Undoubtedly one of the most aesthetic pieces from Corocoro that I have seen. Out of the countless thousands of Copper pseudomorphs that have come from this locality, I can safely say that I have seen no more than about 15 of them on matrix. This beautiful specimen features one predominant, sharp, well-formed, pseudo-hexagonal crystal of Copper replacing Aragonite perched atop and sitting almost dead center on a somewhat sculptural matrix of Native Copper. Impossibly difficult to find, and the great aesthetic quality combined with the associations of micro Cuprite and Chrysocolla make it a meaningful piece.

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Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite (


No. CUPS8104 - $ 200.00

Copper pseudomorph after Aragonite ("disco ball" "floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 2.6 x 2.4 x 2.3 cm (thumbnail)


The large majority of the Copper pseudomorphs from Corocoro are single pseudo-hexagonal crystals after Aragonite, but a small percentage of them form in complex somewhat radiating/spherical aggregates which we like to refer to as "disco balls". This particular specimen is a great example of this material with remarkably sharp faces (not at all rounded) and excellent form. The piece is a complete "floater" and can be displayed from several angles as you can see from the photos. A great full sized thumbnail specimen of this hard to find habit from Corocoro.

To order this specimen click here




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Copper pseudomorph after Aragonite with Malachite ( Copper pseudomorph after Aragonite with Malachite ( Copper pseudomorph after Aragonite with Malachite ( Copper pseudomorph after Aragonite with Malachite ( Copper pseudomorph after Aragonite with Malachite ( Copper pseudomorph after Aragonite with Malachite (


No. CUPS8105 - $ 175.00

Copper pseudomorph after Aragonite with Malachite ("floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 2.1 x 2.0 x 1.3 cm (thumbnail)


A hard to find, prismatic, pseudo-hexagonal specimen featuring one good sized prism with a few tabular crystals in the center. Complete on all sides, with a minor amount of associated mint-green Malachite. Sharp and eye-catching compared to others of its kind from Corocoro.

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Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8106a.JPG] Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8106b.JPG] Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8106c.JPG] Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8106d.JPG] Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8106e.JPG]


No. CUPS8106 - $ 500.00

Copper pseudomorph after Aragonite

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 5.3 x 4.0 x 3.0 cm (small cabinet)


A large, predominant pseudo-hexagonal pseudomorph of Copper after Aragonite is accented by a few smaller tabular pseudomorphs. The base of the specimen features a somewhat thick, ruffled sheet of Native Copper flaring out creating a pleasing effect. A full-sized large miniature display specimen, with great visual appeal.

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Copper pseudomorph after Aragonite (large Copper pseudomorph after Aragonite (large Copper pseudomorph after Aragonite (large Copper pseudomorph after Aragonite (large Copper pseudomorph after Aragonite (large Copper pseudomorph after Aragonite (large Copper pseudomorph after Aragonite (large


No. CUPS8107 - $ 700.00

Copper pseudomorph after Aragonite (large "floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 5.9 x 3.9 x 3.3 cm (small cabinet)


Hands down, one of the largest specimens of this material that I have encountered. This piece is a significant rarity from Corocoro both from the standpoint of aesthetic appeal and size! Two very good sized, thick, blocky, pseudo-hexagonal crystals of Copper replacing Aragonite are intergrown to create a very three-dimensional display specimen. The specimen is complete on all sides, with sharp, blocky faces and a gorgeous pink, purple and orange iridescent patina. Better in person than the photos might indicate. Keep in mind that virtually all of the specimens from this locality are loose single crystals, and rarely does one find such large intergrown groups like this, even in old collections.

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Copper pseudomorph after Aragonite with Malachite ( Copper pseudomorph after Aragonite with Malachite ( Copper pseudomorph after Aragonite with Malachite ( Copper pseudomorph after Aragonite with Malachite (


No. CUPS8108 - $ 200.00

Copper pseudomorph after Aragonite with Malachite ("floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 3.4 x 2.4 x 2.3 cm (miniature)


An unusually compressed single "floater" of Copper after Aragonite from Corocoro. Typically, the tabular crystals are compressed along the "c" axis, but this one is compressed along one of the prism faces, making less equant than the majority of the pieces from this locality. A slight "dusting" of Malachite combined with the sharp, well-formed faces make it an interesting novelty piece from this classic occurrence.

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Aragonite AND Copper pseudomorph after Aragonite (before and after set) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8109a.JPG] Aragonite AND Copper pseudomorph after Aragonite (before and after set) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8109b.JPG] Aragonite AND Copper pseudomorph after Aragonite (before and after set) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8109c.JPG] Aragonite AND Copper pseudomorph after Aragonite (before and after set) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups8109d.JPG]


No. CUPS8109 - $ 150.00

Aragonite AND Copper pseudomorph after Aragonite (before and after set)

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 1.9 x 1.7 x 0.9 and 1.8 x 1.7 x 0.9 cm (thumbnail)


A wonderful thumbnail set consisting of a crystal of Aragonite and a pseudomorph of Copper after Aragonite from the famous locality of Corocoro. These "floater" specimens are well known from Bolivia for their great form and color, and this set is great way to illustrate the "before and after" effect which is rare to find for most pseudomorphs, especially from the same locality. It must be noted that single un-pseudomorphed Aragonite crystals from Corocoro are not easy to find, and we spent a good deal of time trying to match the few we have with a pseudomorphed counterpart to create a totally one-of-a-kind pair. These pieces are some of the most well known and highly sought after pseudomorphs around. This set is a very fine example of this material, and it was very difficult to find a pair of specimens that matched so well for shape and size.



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(click on the pictures to enlarge)

Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite (


No. CUPS81010 - $ 225.00

Copper pseudomorph after Aragonite ("floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 2.8 x 2.7 x 2.2 cm (thumbnail)


A large thumbnail sized intergrown group of sharp pseudomorphs of Copper after Aragonite showing classic pseudo-hexagonal form. The piece is complete on all sides, and can be displayed in a myriad of directions as you can see from the photos. A minor association of light mint-green Malachite is an added touch to this attractive specimen.

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Copper pseudomorph after Aragonite with Malachite ( Copper pseudomorph after Aragonite with Malachite ( Copper pseudomorph after Aragonite with Malachite ( Copper pseudomorph after Aragonite with Malachite ( Copper pseudomorph after Aragonite with Malachite ( Copper pseudomorph after Aragonite with Malachite (


No. CUPS81011 - $ 275.00

Copper pseudomorph after Aragonite with Malachite ("floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 4.0 x 3.0 x 2.2 cm (miniature)


An attractive and aesthetic, multi-crystal group of blocky pseudo-hexagonal Copper replacing Aragonite. The piece is complete all the way around, and virtually all sides show a thin layer of light mint-green Malachite coating the surface. One interesting aspect of the piece is the fact that one of the crystals is only partially pseudomorphed, as you can clearly see a patch of golden Aragonite in the center.

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Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite (


No. CUPS81012 - $ 150.00

Copper pseudomorph after Aragonite ("disco ball" "floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 2.1 x 2.0 x 1.9 cm (thumbnail)


The large majority of the Copper pseudomorphs from Corocoro are single pseudo-hexagonal crystals after Aragonite, but a small percentage of them form in complex somewhat radiating/spherical aggregates which we like to refer to as "disco balls". This particular specimen is a great example of this material with excellent form. The piece is a complete "floater" and can be displayed from several angles as you can see from the photos. A nice thumbnail specimen of this hard to find habit from Corocoro.

To order this specimen click here




(click on the pictures to enlarge)

Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite (


No. CUPS81013 - $ 250.00

Copper pseudomorph after Aragonite ("floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 3.3 x 2.6 x 2.3 cm (miniature)


A rather thick and blocky pseudomorph of Copper after Aragonite showing a bright metallic color and rarely seen skeletal or "hoppered" prism faces. Typically the prisms of these crystals are only very slightly indented, and not nearly as pronounced as the faces on this specimen. The piece is a complete "floater" showing the classic pseudo-hexagonal form, and for an added touch, a small "sidecar" crystal sits atop the specimen creating a nice effect.



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Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite (


No. CUPS81014 - $ 150.00

Copper pseudomorph after Aragonite ("floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 1.6 x 1.2 x 1.1 cm (thumbnail)


A hard to find, prismatic, pseudo-hexagonal specimen featuring one good sized prism with a few tabular crystals intergrown in the center. Complete on all sides, with a minor amount of associated mint-green Malachite. Sharp and eye-catching compared to others of its kind from Corocoro.

To order this specimen click here




(click on the pictures to enlarge)

Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite (


No. CUPS81015 - $ 175.00

Copper pseudomorph after Aragonite ("disco ball" "floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 2.1 x 2.1 x 2.0 cm (thumbnail)


The large majority of the Copper pseudomorphs from Corocoro are single pseudo-hexagonal crystals after Aragonite, but a small percentage of them form in complex somewhat radiating/spherical aggregates which we like to refer to as "disco balls". This particular specimen is a great example of this material with remarkably sharp faces (not at all rounded) and excellent form. The piece is a complete "floater" and can be displayed from several angles as you can see from the photos. A great full sized thumbnail specimen of this hard to find habit from Corocoro.

To order this specimen click here




(click on the pictures to enlarge)

Copper pseudomorph after Aragonite with Malachite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81016a.JPG] Copper pseudomorph after Aragonite with Malachite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81016b.JPG] Copper pseudomorph after Aragonite with Malachite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81016c.JPG] Copper pseudomorph after Aragonite with Malachite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81016d.JPG] Copper pseudomorph after Aragonite with Malachite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81016e.JPG]


No. CUPS81016 - $ 250.00

Copper pseudomorph after Aragonite with Malachite

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 4.2 x 3.6 x 2.4 cm (miniature)


A single, sharp, well-formed pseudomorph with a few branching “arms” of Native Copper and one small “sidecar” pseudomorph along the side of the prism. Certainly the piece has more of a three-dimensional quality than a large percentage of those from Corocoro. Associated Malachite creates a nice color contrast as well.

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Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite (


No. CUPS81017 - $ 150.00

Copper pseudomorph after Aragonite ("floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 2.4 x 2.3 x 1.3 cm (thumbnail)


A classic, sharp, single “floater” pseudomorph with good symmetry and well-defined faces. The piece shows the well known pseudo-hexagonal form that makes these specimens stand out from other Copper pseudomorphs from any world locality.

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(click on the pictures to enlarge)

Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite (


No. CUPS81018 - $ 200.00

Copper pseudomorph after Aragonite ("floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 3.6 x 3.4 x 2.1 cm (miniature)


A good sized, sharp, pseudomorph with a couple of secondary associated pseudomorphs along the prism faces. Associated mint-green Malachite creates an eye-catching two-tone effect of color. A good specimen for a collector of "toenails".

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(click on the pictures to enlarge)

Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite (


No. CUPS81019 - $ 225.00

Copper pseudomorph after Aragonite ("disco ball" "floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 2.5 x 2.4 x 2.1 cm (thumbnail)


This is the classic “floater”, “disco ball” habit that is seen in less than 10% of the specimens from Corocoro. It has incredibly sharp faces, and good symmetry. The large majority of the Copper pseudomorphs from Corocoro are single pseudo-hexagonal crystals after Aragonite, but a small percentage of them form in complex somewhat radiating/spherical aggregates which we like to refer to as "disco balls". The piece is can be displayed from several angles as you can see from the photos. A great full sized thumbnail specimen of this hard to find habit from Corocoro.

To order this specimen click here




(click on the pictures to enlarge)

Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite (


No. CUPS81020 - $ 375.00

Copper pseudomorph after Aragonite ("floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 4.4 x 2.8 x 2.6 cm (miniature)


One of the most aesthetic specimens in the update. This piece is a significant rarity from Corocoro both from the standpoint of aesthetic appeal and size. Several tabular, pseudo-hexagonal crystals of Copper replacing Aragonite are intergrown to create a very three-dimensional display specimen. The specimen is complete on all sides, with sharp faces and a deep colored patina. Better in person than the photos might indicate. Keep in mind that virtually all of the specimens from this locality are loose single crystals, and rarely does one find intergrown groups like this, even in old collections.

To order this specimen click here




(click on the pictures to enlarge)

Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite (


No. CUPS81021 - $ 250.00

Copper pseudomorph after Aragonite ("floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 3.0 x 2.0 x 1.7 cm (thumbnail)


A striking pair of hard to find, prismatic, pseudo-hexagonal "barrel"-shaped pseudomorphs of Copper after Aragonite are intergrown to create what is one of the more aesthetic pieces in this size range that I have encountered. No damage, complete on all sides, and can be pleasingly displayed from several angles. The centers of the two main prisms have a few intergrown tabular Copper pseudomorphs for a bit more complexity to the appearance. Great quality and better in person than the photos might indicate.

To order this specimen click here




(click on the pictures to enlarge)

Copper pseudomorph after Aragonite with Brochantite, Chrysocolla and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81022a.JPG] Copper pseudomorph after Aragonite with Brochantite, Chrysocolla and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81022b.JPG] Copper pseudomorph after Aragonite with Brochantite, Chrysocolla and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81022c.JPG] Copper pseudomorph after Aragonite with Brochantite, Chrysocolla and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81022d.JPG] Copper pseudomorph after Aragonite with Brochantite, Chrysocolla and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81022e.JPG] Copper pseudomorph after Aragonite with Brochantite, Chrysocolla and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81022f.JPG] Copper pseudomorph after Aragonite with Brochantite, Chrysocolla and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81022g.JPG] Copper pseudomorph after Aragonite with Brochantite, Chrysocolla and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81022h.JPG] Copper pseudomorph after Aragonite with Brochantite, Chrysocolla and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81022i.JPG]


No. CUPS81022 - $ 175.00

Copper pseudomorph after Aragonite with Brochantite, Chrysocolla and Cuprite

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 2.7 x 2.2 x 1.4 cm (thumbnail)


A single pseudo-hexagonal crystal of Copper after Aragonite featuring micro "needles" of vibrant green Brochantite along with amorphous groups of blue Chrysocolla and tiny blood-red Cuprite octahedra! For an association specimen, this is certainly better than the vast majority of Copper pseudomorphs from Corocoro. I have photographed the micro species under the microscope to better illustrate their quality.

To order this specimen click here




(click on the pictures to enlarge)

Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81023a.JPG] Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81023b.JPG] Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81023c.JPG] Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81023d.JPG] Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81023e.JPG] Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81023f.JPG]


No. CUPS81023 - $ 300.00

Copper pseudomorph after Aragonite

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 3.3 x 3.2 x 3.1 cm (miniature)


A good sized specimen featuring one thick, blocky, pseudo-hexagonal crystal of Copper after Aragonite with a secondary intergrown crystal flaring out of the top of the specimen. The faces are incredibly sharp for the size of the material. It is difficult to find larger intergrown crystal group such as this, as the majority of specimens are loose singles, or simply not nearly as large as this one. A worthwhile, well-formed specimen from this classic locality.

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(click on the pictures to enlarge)

Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite (


No. CUPS81024 - $ 275.00

Copper pseudomorph after Aragonite ("floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 2.7 x 2.4 x 2.3 cm (thumbnail)


A beautiful "flower"-like spray of pseudo-hexagonal crystals of Copper pseudomorphs after Aragonite. The piece is not quite a "disco ball", and not quite a prismatic group, but it simply stands out as one of the most eye-catching specimens from Corocoro that I have seen in this size range. The somewhat cavernous "hoppered" effect of the specimen gives it such three-dimensional depth and the fact that it is complete on all sides allows to be displayed from virtually every angle. A real showy large thumbnail sized specimen with outstanding form and visual appeal.

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(click on the pictures to enlarge)

Copper pseudomorph after Aragonite with Connellite, Chrysocolla, Malachite and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81025a.JPG] Copper pseudomorph after Aragonite with Connellite, Chrysocolla, Malachite and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81025b.JPG] Copper pseudomorph after Aragonite with Connellite, Chrysocolla, Malachite and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81025c.JPG] Copper pseudomorph after Aragonite with Connellite, Chrysocolla, Malachite and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81025d.JPG] Copper pseudomorph after Aragonite with Connellite, Chrysocolla, Malachite and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81025e.JPG] Copper pseudomorph after Aragonite with Connellite, Chrysocolla, Malachite and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81025f.JPG] Copper pseudomorph after Aragonite with Connellite, Chrysocolla, Malachite and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81025g.JPG] Copper pseudomorph after Aragonite with Connellite, Chrysocolla, Malachite and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81025h.JPG] Copper pseudomorph after Aragonite with Connellite, Chrysocolla, Malachite and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81025i.JPG] Copper pseudomorph after Aragonite with Connellite, Chrysocolla, Malachite and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81025j.JPG] Copper pseudomorph after Aragonite with Connellite, Chrysocolla, Malachite and Cuprite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81025k.JPG]


No. CUPS81025 - $ 225.00

Copper pseudomorph after Aragonite with Connellite, Chrysocolla, Malachite and Cuprite

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 3.7 x 2.7 x 2.2 cm (miniature)


A single pseudo-hexagonal crystal of Copper after Aragonite featuring micro vibrant blue Connellite along with amorphous groups of blue Chrysocolla, light mint-green Malachite and tiny blood-red Cuprite octahedra! For an association specimen, this is certainly better than the vast majority of Copper pseudomorphs from Corocoro. I have photographed the micro species under the microscope to better illustrate their quality.

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Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite (


No. CUPS81026 - $ 275.00

Copper pseudomorph after Aragonite ("floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 3.5 x 2.2 x 1.8 cm (miniature)


A wonderfully aesthetic specimen for the material. This piece is a significant rarity from Corocoro as intergrown groups like this are difficult to obtain. Several thick, tabular, pseudo-hexagonal crystals of Copper replacing Aragonite are intergrown to create a very three-dimensional display specimen. The specimen is complete on all sides, with sharp faces and a rich "coppery" patina. Better in person than the photos might indicate. Keep in mind that virtually all of the specimens from this locality are loose single crystals, and rarely does one find intergrown groups like this, even in old collections.

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Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81027a.JPG] Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81027b.JPG] Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81027c.JPG] Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81027d.JPG] Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81027e.JPG] Copper pseudomorph after Aragonite from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81027f.JPG]


No. CUPS81027 - $ 150.00

Copper pseudomorph after Aragonite

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 3.4 x 3.2 x 2.8 cm (miniature)


A tightly packed "cluster" of stout, pseudo-hexagonal crystals of Copper replacing Aragonite sit together with a partial pseudomorph that was broken and exposed some remaining translucent, white Aragonite in the center.

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Copper pseudomorph after Aragonite (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81028a.JPG] Copper pseudomorph after Aragonite (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81028b.JPG] Copper pseudomorph after Aragonite (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81028c.JPG] Copper pseudomorph after Aragonite (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81028d.JPG] Copper pseudomorph after Aragonite (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81028e.JPG] Copper pseudomorph after Aragonite (on matrix!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81028f.JPG]


No. CUPS81028 - $ 250.00

Copper pseudomorph after Aragonite (on matrix!)

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 2.9 x 2.0 x 1.1 cm (thumbnail)
Crystal Group: 1.3 cm across


A highly sought after and incredibly hard to find MATRIX specimen from Corocoro that. Out of the countless thousands of Copper pseudomorphs that have come from this locality, I can safely say that I have seen no more than about 15 of them on matrix. This beautiful specimen features a group of bright, metallic, well-formed, pseudo-hexagonal crystals of Copper replacing Aragonite perched atop a "sheet" of Native Copper matrix. Impossibly difficult to find like this, and the great aesthetic quality make it an important piece for the locality.



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Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite ( Copper pseudomorph after Aragonite (


No. CUPS81029 - $ 125.00

Copper pseudomorph after Aragonite ("floater")

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 4.1 x 2.3 x 1.7 cm (thumbnail)


A rather sculptural, and somewhat distorted group of incredibly sharp, intergrown pseudo-hexagonal crystals of Copper pseudomorphs after Aragonite. The piece has a unique appearance, with a subtle three-dimensional quality. It is unlike anything else in the update, along with virtually any other piece I have seen from this locality. Different from the majority of the other Copper pseudomorphs from Corocoro to be sure.



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(click on the pictures to enlarge)

Copper pseudomorph after Aragonite (huge crystal!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81030a.JPG] Copper pseudomorph after Aragonite (huge crystal!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81030b.JPG] Copper pseudomorph after Aragonite (huge crystal!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81030c.JPG] Copper pseudomorph after Aragonite (huge crystal!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81030d.JPG] Copper pseudomorph after Aragonite (huge crystal!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81030e.JPG] Copper pseudomorph after Aragonite (huge crystal!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81030f.JPG] Copper pseudomorph after Aragonite (huge crystal!) from Corocoro, Pacajes Province, La Paz Department, Bolivia [./cups810/cups81030g.JPG]


No. CUPS81030 - SOLD

Copper pseudomorph after Aragonite (huge crystal!)

Locality: Corocoro, Pacajes Province, La Paz Department, Bolivia

Specimen Size: 4.8 x 3.9 x 3.9 cm (miniature)


An amazingly large crystal for the material and the locality. The entire piece is a full-sized miniature, which is nearly TWICE the size of the majority of the pieces that I consider to be good sized! Perhaps the most impressive aspect of the piece is that the crystal is amazingly sharp, well-formed, and undistorted for the size. Typically, if the crystals are even close to being as big as this one, the symmetry becomes rather imprecise, and have an unpleasing appearance. This monster of a crystal is complete on all sides, and for a nice touch, it actually has a small branching "leaf" of Native Copper flaring off of one side. Finally, just for a bit of added color, there are small patches of associated light mint-green Malachite on the piece, and the reverse side of the crystal shows an area of un-pseudomorphed golden Aragonite in the center! For the size, quality, and immense rarity of the piece, it is very reasonably priced for what it is.



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