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Mineral Specimens with Aurichalcite
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6.5 x 6.2 x 3.8 cm. The Mina Ojuela has produced a new find of this beautiful and striking combination material. Glassy, transparent calcite rhombs to 1.4 cm across are richly and aesthetically strewn across the starkly contrasting, sturdy, gossan matrix. The matrix is nearly covered with beautiful, robin’s-egg blue aurichalcite needles. Some of the calcite rhombs are included with aurichalcite and some are not, which really adds to the attractiveness of this fine piece.
3.2 x 2.5 x 2.3 cm. "Rice grain" smithsonite crystals on aurichalcite are amongst the most desirable combination specimens from the famed Kelly Mine. Gemmy, tiny, rice-grain smithsonite crystals are richly scattered on the thin, gorgeous, powder-blue, botryoidal aurichalcite crust coating the gossan matrix. A very fine toenail from this renowned locale and seldom available in this quality. Ex. Mullane Collection.
MD-26261 - Rosasite, Aurichalcite, Limonite - - Archived
Omega Mine (Omega Tunnel; Omega Extension), Monument Mountain, Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA
small cabinet, 5.7 x 5.2 x 3.3 cm
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Super-bright little balls of rosasite and aurichalcite, or robins-egg blue, on a contrasting limonite matrix. 5.7 x 5.2 x 3.3 cm
6.2 x 5.8 x 4.3 cm. Aurichalcite is relatively uncommon from the famous mines at Bisbee. This remarkable combination specimen is richly covered with radial sprays of powder-blue to pastel-green aurichalcite needles. The aurichalcite is associated with clusters of glassy, colorless hemimorphite crystals, some of which are included with aurichalcite. This is a very uncommon association specimen from this classic locale and is almost certainly old-time material, dating to prior to World War I. Ex. Dennis Mullane Bisbee Collection.
4.8 x 4.3 x 3.7 cm. The Mina Ojuela has produced a new find of this beautiful and striking combination material. Two glassy, transparent calcite rhombs to 2.0 cm across are aesthetically set in a sculpural vug in starkly contrasting, sturdy, gossan matrix. The vug is lined with beautiful, robin’s-egg blue aurichalcite needles. The calcite rhombs are included with aurichalcite and have grown around aurichalcite needles, which really adds to the attractiveness of this fine piece. A stunning new find.
8.7 x 5.6 x 3.2 cm. Like an aqua-blue ocean lapping up on an ocherous island beach, lustrous and translucent rhombs of calcite, to 1.7 cm across, have been colored a rich blue by fibrous inclusions of aurichalcite. It is surely one of the most impressive pieces overall for color intensity, crystal definition, and overall aesthetics in this size range. When closely examining the calcite, it is possible to see the fibrous aurichalcite crystals preserved inside, thus showing that this is intergrowth, as much or more so than simple inclusions. Some crystals of calcite may be more aurichalcite than calcite now. The color is , truly, mesmerizing. The color and lustre both are better in person because we had the camera compromise to try to get each in some degree.
6.4 x 5.2 x 2.7 cm. A plate of intergrown, lustrous and translucent calcite rhombs, to 2.0 cm across, is emplaced on an ocherous matrix. The crystals are heavily included by fibrous aurichalcite which has turned them a rich blue color. This is one of the richest overall plates of solid colored crystals from the find. When closely examining the calcite, it is possible to see the fibrous aurichalcite crystals preserved inside, thus showing that this is intergrowth, as much or more so than simple inclusions. Some crystals of calcite may be more aurichalcite than calcite now. The color is, truly, mesmerizing. The color and lustre both are better in person because we had the camera compromise to try to get each in some degree.
6.0 x 5.2 x 3.7 cm. Emplaced on a limonite matrix are spherules of pastel blue aurichalcite, to .7 cm across. Aesthetically perched on the aurichalcite, are bladed, fan -like crystals of glassy and gemmy, colorless, calcite, to nearly 3 cm across. Absolutely striking. This was an unusual habit in the pocket.
5.7 x 5.1 x 4.0 cm. Equant, lustrous and translucent rhombs of calcite, to 1.7 cm across, have been differentially included by fibrous aurichalcite, resulting in a two-tone blue appearance. These crystals are perched on fibrous, pastel blue aurichalcite, which, in turn, is emplaced on ocherous limonite matrix. An excellent example of calcite from this find, more than most pieces which are simply for color or the lure of the association.
7.3 x 5.4 x 4.0 cm. This matrix specimen contains the largest rhombs of equant, lustrous and translucent calcite, we have obtained. They reach 3.2 cm on edge and 4 cm across. The large crystal actually exhibits stepped growth. Differential inclusions of fibrous, aurichalcite have given the crystals a two-tone, blue coloration. Simply outstanding geometry and the shocking blue color inside otherwise colorless calcite make this a good specimen. Few calcite rhombohedra of such size were recovered, and this stands out very nicely in the lot as an excellent example of calcite from this find, more than most pieces which are simply for color or the lure of the association.
7.0 x 4.2 x 4.2 cm. A very rich, intensely colored cluster of equant, lustrous and translucent calcite rhombs, to 1.8 cm, is emplaced on ocherous limonite. The crystals, are, in turn, colored a rich blue by fibrous inclusions of aurichalcite. This is one of the richest overall plates of solid colored crystals from the find. When closely examining the calcite, it is possible to see the fibrous aurichalcite crystals preserved inside, thus showing that this is intergrowth, as much or more so than simple inclusions. Some crystals of calcite may be more aurichalcite than calcite now. The color is, truly, mesmerizing. The color and lustre both are better in person because we had the camera compromise to try to get each in some degree.
2.1 x 1.9 x 0.7 cm. Perched aesthetically on smaller rhombs is a 1.8 cm across, tabular rhomb of lustrous and translucent calcite that has been included by a lovely blue, fibrous aurichalcite. A superb thumbnail.
2.7 x 2.0 x 1.9 cm. Bright blue, fibrous aurichalcite has been included in rhombs of lustrous and translucent calcite, to 1.1 cm across. An elegant, aesthetic cluster, complete-all-around, this is a superb thumbnail specimen.
3.7 x 2.9 x 1.1 cm. This is, very simply, a huge, well formed rhomb of lustrous and translucent calcite that has been richly included by fibrous, richly colored blue aurichalcite.
5.5 x 3.5 x 1.5 cm. Intergrown rhombs of lustrous and translucent calcite, to 1.0 cm across, have been colored a rich blue by fibrous inclusions of aurichalcite. A nice, sizable plate of high quality.
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Rob Lavinsky, rob@irocks.com
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