Search Fine Minerals for Sale Online - The Arkenstone




 
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Copper ps. Aragonite from Corocoro, La Paz Department, Bolivia [http://img.irocks.com/pics/d8a.jpg]
Corocoro, La Paz Department, Bolivia
Thumbnail, 1.7 x 1.6 x 1.6 cm
This is really an amazing pseudo. To find Copper in such sharp hexagonal habit, even knowing that it is a pseudo, still blows the mind.
Aragonite from Podrescany, Lucsenac, Slovakia [http://img.irocks.com/2014-updates/OB14B/OB14B34a-herb-obodda-collection-fine-mineral-specimen.JPG]
Podrescany, Lucsenac, Slovakia
Cabinet, 11 x 8.5 x 6.5 cm
Very aesthetic spray of slender Aragonite crystals, on matrix. The Aragonites range up to 5 cm long, they are distibuted beautifully. This is from the famous find here (was it early 1980s?) , and I have sene only a few for sale in the US in recent years. Granted, some have their tips missing, no surprise given the fragility, but overall the piece is in excellent condition, and both the visual light and the fluorescence is attractive. Fine overall aesthetics on an old classic.
Aragonite from Spania Dolina (Herrengrund), Starohorske Mountains, Slovakia  [http://img.irocks.com/2014-updates/OB14C/ob14c21a-herb-obodda-fine-mineral-specimens.JPG]
Spania Dolina (Herrengrund), Starohorske Mountains, Slovakia
Large Cabinet, 14.5 x 10 x 9.5 cm
Outstanding pseudo-hexagonal compound twins of Aragonite, with the largest crystal being an amazing 7.7 cm in length. These translucent to gemmy, white to clear crystals form sharp prisms with incredibly bright luster . They are generally sharp, with an occasionally stepped face. Remarkably clean from damage - these are exceptional crystals of Aragonite from one of the most classic old locales in Europe. Herb Obodda had a special suite of Herrengrund minerals assembled over decades of collecting, of which this was a part. Much better in person, as shooting monochromatic lustrous crystals is difficult! It was once owned by the great colelctor Clarence Bement, (1843-1923) (http://www.minrec.org/labels.asp?colid=139), who paid $14 for this in the late 1800s, according to accession records (provided) from the American Museum of Natural History. This piece would have been in his collection when it was purchased by financier JP Morgan in 1910 and donated to the museum. Ex. Bement, AMNH. Great history, and a great piece.
Aragonite (old, very rare size) from Bilin, Czech Republic [http://img.irocks.com/new2010/rlkg249a.jpg]
Bilin, Czech Republic
Thumbnail, 19.3 x 13.2 mm ; 13.31 carats
This is a super rare collector's stone. When is the last time that you can remember seeing a faceted stone of Aragonite? With the exception of the Czech specimens, Aragonite is rarely found in facet grade material. This is the old, classic European locale for the species and crystals from this location come up in old collections only infrequently. This was cut from one such old piece. This stone is a wonderful, very very slightly included gem with a "Pear" cut. These gems are very difficult to find these days, and stones this size are NOT common
Tarnowitzite (Plumbian Aragonite) from Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia [http://img.irocks.com/2014-updates/T14B/T14B12a-tsumeb-fine-mineral-specimens.JPG]
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
Cabinet, 11 x 10 x 5 cm
Exceptionally large and rich specimen of the uncommon Lead variety of Aragonite. The many crystals here grade from cream colored to that of milk chocolate. The lustrous Tarnowizites average about 1 cm in size, but can reach up to 1.5 cm. The growth is dense, but the crystals keep their individual identity nicely. The cream-colored caps add much to the aesthetics. A very good, and unusual, example from this great mine.
Sulfur on Aragonite from Racalmuto Mine, Agrigento Province, Sicily, Italy [http://img.irocks.com/new2010/t10406a.jpg]
Racalmuto Mine, Agrigento Province, Sicily, Italy
Small Cabinet, 8.8 x 7.0 x 4.3 cm
This specimen presents isolated, intense yellow crystals of sufur on stark white matrix of spiky little aragonite crystals. The crystals are to 3 cm in size, and pristine despite the age, and the softness of fragile sulfur crystals. This is a display-quality example of this CLASSIC material, now seldom seen in this quality for sale. A lot of more recently mined sulfur specimens was available briefly in the 1970s, and also some notorious fakes created around the same time. This piece, however, dates back firmly to a major multigenerational collection of Milan that was assembled in the second half of the 19th centruy. It has been confirmed as a valid historic specimen by Dr. Federico Pezzotta of the MUSEO DI STORIA NATURALE in Milan, which has an extensive comparative collection. Comes with custom lucite display base