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Mineral Specimens with Aragonite
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11.8 x 9.5 x 8.8 cm. A beautiful cabinet aragonite specimen from Santa Eulalia and the Mullane Collection. This is just an unbelievable array of pearlescent, stalactitic spikes and spiky knobs. It has a very coral-like appearance.
9.0 x 6.7 x 4.0 cm. Powder-blue aragonite botryoids form a beautiful and striking specimen from recent finds at the Wenshan Mine of China. Copper inclusions cause the excellent blue color, which really intensifies, when the piece is backlit.
An absolutely gorgeous specimen, with 3-dimensional starbursts of crystals all over it, and separation between these starbursts that isolates them and really shows each one at its best (rather than a mass of intergrown crystals). Virtually no damage on this fine, delicate specimen! A real showpiece, from a relatively unfamiliar mine in Nevada. 10.8 x 8.4 x 6.4 cm
6.0 x 5.1 x 4.3 cm. This is an intergrown cluster of lustrous and translucent, ocher-colored, twinned crystals of aragonite. The crystals reach 4.0 cm in length and a few of them are also doubly terminated. Jack purchased this from longtime friend and dealer in California, A.L. McGuinness, in the 1980s. Ex. Jack Halpern Collection.
3.7 x 3.5 x 2.6 cm and 3.8 x 3.4 x 2.7 cm. Here is a fine thumbnail set consisting of a crystal of Aragonite and a pseudomorph of Copper after Aragonite from the locality of Corocoro. These floater specimens are well known from Bolivia for their great form and color, and this set is fine illustration of the "before and after" effect which is rare to find for most pseudomorphs, especially from the same locality. 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.
4.5 x 3.2 x 2.8 cm. A stunning miniature featuring two fine crystals together, isolated on matrix. Note the sharp form of these crystals, quite a bit less modified than one normally sees and more "textbook" in style. The larger crystal, pristine and 2.3 cm in height, is deep yellow, gemmy and lustrous. The second crystal, equal in size, but just slightly lighter in color, is nearly as perfect. Ex. Martin Lewadny Collection.
2.4 x 2.1 x 2.0 cm and 2.5 x 2.2 x 2.1 cm. Here is a fine thumbnail set consisting of a crystal of Aragonite and a pseudomorph of Copper after Aragonite from the 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. 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.
An uncommon and aesthetic Tsumeb specimen of lustrous green cuprian aragonite spires with beautifully placed matrix. This is an esoteric and rare carbonate from Tsumeb, and here we have a fine and displayable example! 5.4 x 4.0 x 2.3 cm
A gorgeous profusion of sharp crystals growing in 3-dimensional, radial bursts from top to bottom! A really spectacular and showy mineral specimen. When I say sharp I mean it - they can cut your fingers! There is a second generation of tiny, even sharper, crystals atop the main generation. 14 x 9 x 7 cm
9.2 x 7.1 x 3.0 cm. A unique, old-time calcite specimen from the Joplin Field of Missouri. This weirdly shaped, conical piece is called a "harlequin" or masked calcite. A glassy, translucent, amber calcite scalenohedron has an overgrowth crust of bone-white aragonite. The aragonite masks the calcite, just as a Harlequin, a comic character in pantomine, wears a mask. A very unusual specimen from a very uncommon mine - the Blue Goose, in this historic district. Ex. Norris, Steve Chamberlain and George Feist Collections.
8.3 x 6.5 x 6.3 cm. A showy, excellent and rich combination specimen from the Tsumeb Mine and the Rob Smith Collection. Lustrous, pseudo-hexagonal, "towers" of tarnowitzite or plumboan aragonite are richly covered with contrasting green, primary malachite crystals. The tarnowitzite crystals reach 2.0 cm.
12.1 x 4.4 x 2.9 cm. A diverging spray of glassy, lustrous crystals is aesthetically nestled in a vug of millimeter size quartz crystals. Quite rare as a species, from India.
8.5 x 6.0 x 4.5 cm. Stunning, diverging sprays of glassy, colorless aragonite needles form a dramatic specimen from South Africa. This distinctive specimen is complete-all-around and has a beautiful, floral look. There are even two, side-by-side "stalks" under the large spray. There are very few broken needles on this very fine piece. From a new find. The locality is not exactly known yet.
A really elegant small cab specimen from the recent one-time find in Nevada. We liked these so well that we bought the whole lot - not only as a really significant and beautiful new occurrence for aragonite and an exciting new US find, but simply gorgeous mineral specimens. This one is a great size for many collections, and is unique in how the crystal clusters are isolated and perched at the top of the matrix. We had 3 dozen in all, I admit, but only about half are this good. 7 x 5.5 x 4.3 cm
12.4 x 9.5 x 5.5 cm. A fine cabinet example of the aragonites from this one-time find a couple of years ago - not only beautiful, but an important new find of aragonite from anywhere, much less America. They have a unique look, with tiny crystals growing like teeth on an earlier generation of sharp, larger crystals. This is not only a large specimen, but the crystals really stick up off the matrix in bold relief, in a series of interconnected bursts of crystals framed by the contrasting iron-rich matrix.
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Rob Lavinsky, rob@irocks.com
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share specimen![Aragonite from Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-231819a.jpg]](db_pics/mdpics/MD-231819a.jpg)
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![Aragonite from Jalgaon District, Maharashtra, India [db_pics/mdpics/MD-240646b.jpg]](db_pics/mdpics/MD-240646b.jpg)
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