A beautiful emerald with the vibrant green color and glassy lustre characteristic of La Pita Mine, 3.6 cm tall, contrasted nicely on its matrix. Recently mined in early 2011, this is a most unusual specimen in that the emerald is perched on, rather embedded IN, a large rhombohedral calcite crystal. The emerald is uncracked and unrepaired, remarkable for one of this size - they usually show stress fractures at this size. It is not a thin crystal either - you can look into its depths and see it goes into the calcite. The calcite is sawed on the bottom and back, where it had to be cut out of surrounding hard rock- this does not show from the display face, in any case. What is particularly nice about this piece, is that it is very , very difficult to get anything like this display size in an emerald, without breaking the bank. While there is a compromise in that the crystal is embedded in the calcite, you get a lot of emerald and a lot of green flash in a larger piece than one might expect, for the money. Joe Budd photos
A stunning single , gemmy, sharp, pristine calcite rises majestically from this matrix of deepest purple amethyst. The contrast is striking. To get it I had to buy the 93-pounder amethyst cathedral it was trapped in and have it trimmed out at some large expense...well, I just had to have it! Both are common minerals, but the association and stark display qualities of this hand-sized piece make it stand out from the crowd. I thought it was, frankly, one of the best Brazilian calcites I have yet seen and long kept it.
An unusual Kelly Mine piece in that it has an association preserved , whereas most never had associated minerals to begin with or the other minerals were dissolved off in the old days by cleaning these in acid. The calcite is so elegant and curvy, i mistook it (as did the previous owner) for selenite...but a selenite collector I sent it to did the test and showed it to be calcite. The crystals are complete and elegantly perched, on the stark blue contrast.
One rarely sees matrix tanzanites! This one features an approximately 6 cm crystal with natural blue-toned color, preched in calcite! Adjacent is a broken, but colorful, tanzanite crystal to the left tha tbalances the piece nicely and adds visual color splash. The main crystal is a little rough at the termination but it IS complete, just contacted. The calcite contrast is unusual and enhances the color. Very 3-dimensional, interesting specimen. Comes with custom base.
ex. Rob Lavinsky
Pics say it all here...this is a GLOWING PINK, NEON-COLORED CLUSTER OF CALCITE! The cobaltian inclusions here are rich, and the calcite itself naturally bright and lustrous , multifaceted. The piece just sparkles. This is a large and showy example from the finds of the late 1980s that simply still are among the most colorful mineral specimens ever found in my book. Except for the periphery, the piece is damage free on the display face. In person, it is more 3-dimensional and obviously exceptional for its color but also its condition for the size. I collected calcite since I was a junior level collector, and worked my way up. Along the way, I bought every good one of these I could afford at the time when they were coming out in the 1980s and put them away, so this one was in my collection for some time. Comes with custom base.
A very rare example of the highly desirable Bisbee green calcites, richly included by malachite. Most are a nice pastel green but THIS ONE is evergreen-colored, the richest green hue I have seen in one of these specimens. It is translucent, sparkling and gorgeous in person - the photos make it look more dull than it is in real life.
A MAJOR, IMPORTANT specimen of Mexican silver species, with sharp polybasite crystals that are literally the size and aspect of Swiss hematites, so robust that I actually DID fall for the trick when shown the piece (at double this price to get me warmed up for a killer) AS a Swiss hematite. I made some fumbling comment about how I could not sell Swiss hematites in the US so well, but I thought the calcite so neat and unusual, like dhte contrast, and well...my source got me. Apparently the piece turned up at a small show, having come directly from a miner in Mexico up to the show and missing the normal channels such major pieces often get funnelled into. The calcite is a wonderful accent, and I cannot ever recall seeing another Mexican specimen of polybasite with such sheer , amazing contrast. Visually, this leaps out. The sparkling drusy calcite highlights the metallic, lustrous blades so nicely. Small barrel-like stephanites are in association as well (on the back), according to Dr. Terry Wallace who examined the specimen for me at the Denver show. He confirmed for me that the piece came from this small shaft adjoining two slightly different deposits, an aberration which is the reason why you have the calcite and the polybasite in the same place at the same time...normally not seen. This is an important Mexican specimen, and an important silver species specimen. If i can presume, I will say that 10 years ago it would have been quickly sold into the Miguel Romero collection at any price, and fit right in with his museum-level Mexican silver species suite which I have recently acuired fom the University of Arizona Science Center .
ex. Irv Brown
Incredibly gemmy ruby crystal, perched on matrix! This redefines what you might expect in a gem ruby specimen, particularly on matrix. Seldom are they GEMMY as opposed to "gemmy"...
ex. Irv Brown
Ex Bill Larson collection. Attached on one side by marble matrix, this is a dramatic, doubly-terminated, translucent, deepest pigeonís blood red, ruby crystal. It has natural wet lustre...its har dto photo both the lustre and color so you have two different shots to emphasize each, if you can combine them more or less in your head. The crystal is 1.3 cm in length. It is well balanced on the matrix. The ruby crystal with its color and highlights represents the very finest quality that Mogok has ever produced, and this was stashed in Bill Larson's collection because of that. BETTER IN PERSON and when backlit, its amazing....probably better off displayed horizontally with the doubly-terminated crystal atop, but either way is good...
ex. Irv Brown
Without question, this vivid red, gemmy, octahedron of spinel on white calcite, is a world class competition thumbnail. Most Mogok spinels are simply loose singles, off matrix. This one, carefully excavated from a miniature at Bill Larson's lab by Irv, is unrepaired and remains on matrix due to the careful prep work. You almost never see this quality of crystal , aside from the additional aesthetics of it being on matrix! The well formed , complete crystal measures .8 cm across. It is truly a thing of beauty.
ex. Dr. Edward David
Crystals to 2 cm of top color saturation and top lustre dominate this large plate of dioptase on calcite matrix! This is a top-shelf dioptase of a calibre that most of us will never see in person, and they get more rare nad more pricey every year. Tsumeb is gone for good, and these stand as one of the great finds of the century fron this mine. There are many NICE specimens, but few that move up to the next level and are truly world-class. This one, I would say, is world class. There are larger specimens out there, and even more pricey specimens out there for sale that I know of (of various styles), but few better. Nearly pristine despite its size, this piece has just a few tiny , trivial dings on its whole length! Comes with custom engraved lucite base, for easy display.
ex. Chicago Field Museum
ex. Dr. Edward David
ex. Maynard Bixby
This remarkable oldtimer came from the Maynard Bixby collection, turn of 1900s, to Chicago Field Musuem. (see the purchase note on the museum's accession card!). They essentially liquidated their musuem collection to Dave Crawford in the late 1980s, and he sold it to Ed, so we have the whole trail from 1905 til now, of ownership. it was probably found when Utah wasnt even a state. its the largest i have seen, best i have seen, and only good one i have seen for sale beyond a small specimen. Truth be told, I am thinking of trimming in half to keep one half as profit and i bet the other half would still probably go for the same 5000. These just are NOT around to be had, it is big, and it is pretty after all..
Only on rare occasions are there more than one or two terminated calcites on matrix from Elmwood. This specimen has four terminated calcite crystals on white sugary barite. The largest glassy, cognac-colored calcite measures 10.0 cm in length. Only very minor edge wear occurs on the two vertical crystals on the right side. The flat lying twin does have damage where it contacts the barite, however, when properly aligned, this does not show anyhow. Overall, a super specimen!
This calcite on calcite exhibits twinning, great luster, and multiple terminations that clearly show wonderful cognac color. Best of all is the sculptural form, as if the top crystal is about to leap off from the upright pedestal it grew from! The top crystal measures 8.0 cm across. Beautiful!
This is a huge, twinned, glassy, SUPER-GEMMY, cognac colored calcite on barite and very minor sphalerite.
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