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" THE CORUNDUMINIUM |
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WHAT'S NEW |
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Here, we post new material or references to
it, so that by checking here frequently you may know what additions
we have made to the website. After a month or two, we
will delete them in most cases. Expect a lot of periodic
changes, improvements, and additions. We are absorbing the
contents of the Original Site, updating the articles, and adding
images whenever time allows.
Earth Treasures, set up to sell or swap redundant specimens to refine the collection and fund the "Corundum Project" has recently been updated. Offerings include not only corundums, but also other minerals and fossils for collecting or lapidary work. We are also back on Ebay, selling under the I.D. "corundumaniac". Images are thumbnailed - left click on one to see the full resolution picture. Last update: January 19, 2012 |
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| 25: MOROGORO, TANZANIA RUBIES | |||||||
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| 24: KILLER PAINITES FROM BURMA | |||||||
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Once upon a time, a friend from Kuala Lumpur asked me about minerals from Burma, so I told him about the recent painite discovery. It turned out that he had been to the Kyauk Pya Thart Monastery in the past. He returned and, because of his already established friendship with the monks, was able to purchase the previously ratholed specimens seen below. The collection of about 200 specimens was memoed to me for sale about three years ago, and although a few of the lesser ones have been liquidated the heart of the suite remains intact. After some friendly negotiations, it is now ours. |
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The painite formed in a skarn between ruby-bearing calcite and leucogranite on the edge of the Wet Loo Ruby Mine just outside the Mogok Stone Tract, so some of the specimens are hybrids (or “half-breeds"), and some show strong alteration (a few may be completely replaced by ruby corundum). The mineral is extremely rare (even a thumbnail was once hyped as the Holy Grail for mineral collectors, though a few crumbs and faceted stones do show up on Ebay). It appears the deposit has been effectively mined out, so the extraordianry quality of the four specimens below may never be challenged. |
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See the Burma page for more images of specimens in this collection, more information, and links to related articles. |
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| 23: JANUARY, 2012 SHIPMENT FROM JOHN SAUL | |||||||
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| 22: FUCHSIA SAPPHIRES FROM AZAD KASHMIR | |||||||
| 21: MORE SPECIMENS FROM JOHN SAUL | |||||||
| In addition to allowing us to acquire specimens from his personal collection, John is scouring Europe for others. On the left are two very old specimens from Madagascar. The incomplete hex prism (first two images) is from Vohitany (Ampanihy), and is ex coll Henry Bessaire. The large laterite coated poker chip is from an unknown locality in Madagascar (ex coll. Alexandre Delerme). The blue oval in the next photo is a 3.55 carat sapphire from Chimwadzulu Hill, Malawi. The last image shows a trio of ruby crystals from "north of Lilongwe, Malawi". | |||||||
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| 20: QUEENSLAND, AUSTRALIA SAPPHIRE | |||||||
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| 19: CALIFORNIA SAPPHIRE CLUSTER | |||||||
| Sadly, my truck was burglarized in Tucson in February, 2010, and among other things an iconic "Mount San Jacinto" California sapphire cluster was stolen. Police reports and World-wide searches have not found it, so I am assuming the thieves did not want to deal with it and trashed it. | |||||||
| These crystals occurred in sections in the host rock and had to be laboriously extracted, cleaned, and epoxied together by the two brothers (Ken and Dana Gochenour) who found them. They are not only unique American corundums, but fine examples of "art imitating nature". This coming summer, I will be updating the terribly obsolete information presently found on the SOUTHWESTERN U.S. page of the website. (4/30/11) | |||||||
| 18: TUCSON, 2011 SPECIMENS | |||||||
| The two left specimens are from Winza, Tanzania (note gem blue kyanite on the first). Next is a Sri Lankan corundum that resembles a jawbone segment (gift of Rob Lavinsky). Two Mogok, Burma crystals appear next. Last is a ruby in gemmy, deep green fuchsite from Karnataka (Mysore) Province, India (gift of Nikhil Zhaveri). | |||||||
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| 17: ACQUISITIONS FROM JOHN SAUL (January 20, 20i0) | |||||||
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I received an email from John Saul, who
had seen our Mineralogical Record article and wanted to know if we
would be interested in some of his old specimens. After the
excited “Do bears go in the woods?” reply, we got down to business;
and now there are several more great specimens from his collection
in ours. Because of this provenance, the suite will be kept
together.
The John Saul Mine in Kenya is well known to collectors, jewelers, and gemologists as a highly regarded source of rubies, including large quantities of sizeable stones suitable for the manufacture of fine cabochons. It is also the one place on Earth I am aware of where secondary deposits included rubies in silicified clay containing fossils (opalized land snails). |
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| The Longido, Tanzania locality is famous for its red and green “ruby in zoisite”, also called “anyolite” in the gemstone trade. There is a lot of legend surrounding the discovery of this site, which is well expressed in two Internet articles. One, written by John and published on his sons’ website, is entitled “The first gemstone discovered in East Africa” (URL is http://www.swalagemtraders.com/news/2008/02/06/7-the-first-gemstone-discovered-in-east-africa). Another is “Longido Ruby”, by Ed Swoboda. It can be found on Bill Larson’s website at URL http://www.palagems.com/swoboda_longido.htm. | |||||||
| 15 TEXAS CORUNDUM | |||||||
| Once I contact the person who found it and check the provenance, I may be able to say exactly where it came from. | |||||||
| 14A: LARGE KASHMIR SAPPHIRES | |||||||
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| 14B: UNUSUAL INDIAN SPECIMENS | |||||||
| 13 KILLER YOGO SAPPHIRE | |||||||
| I am greatly indebted to my friend and mining partner Amos Knapstad, who donated this incredible Yogo Gulch, Montana sapphire to our collection in August, 2010. | |||||||