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| it collected when the Tsumeb Mine (as well as other mines of the region) were still in production in...engineering work took him to the Tsumeb Mine in Namibia. This mine is renowned for producing what are arguably...desert-like "Sperrgebiet" area of the southern coast of Namibia, with its fabulous wealth of gem diamonds. One...Ian’s interest stems from the family trips to Namibia, including the mines of Tsumeb. He worked with... 57001 Azurite Level 8, Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia If the attachment point on the |
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| COVELLITE crystal cluster, 3 cm across, From the Leonard mine, Butte, Montana. Frederick H. Pough collection;...the Butte mining camp, especially in the Kelley mine, was just full of vug holes . . . the holes, some...located in Butte, at the site of the old Orphan Girl mine. . . . So wrote a trainee miner, Jerry Dolph, concerning...an underground stope at Butte, Montana’s Kelley mine in the early 1970’s (Dolph, 1994). The wonderful...crystallized species, unusual associations, or individual mine localities. Similarly, the popular journals are |
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| of the sea floor. Height 6 3/4 in $50,000 - 60,000 22 | BONHAMS 2028 CARVED ROCK CRYSTAL CHALICE WITH...11 x 16in $1,500 - 2,000 2045 AZURITE Tsumeb, Namibia A large azurite rose, with only one or two points... 2047 2047 CRYSTALLIZED AZURITE Milpillas Copper Mine, Milpillas, Sonora, Mexico A small cabinet specimen...OFFICIAL STATE GEMSTONE OF CALIFORNIA Benitoite Gem Mine, San Benito County, California Around the turn of...kept up with demand. Its only source was a small mine in San Benito County in northern California which |
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| cover 22/05/2006 23:45 Page 1 C Composite M Y CM MY CY CMY K p2 21/05/2006 13:21 Page 1 C Composite............................................. 38 Namibia .................................................Ashok Damarupurshad, South Africa; Mally Likukela, Namibia; Gamini Zoysa and Ismail Kamil, Colombo, Sri Lanka;...of Mines; Mally Likukela, Directorate of Mines, Namibia; Murat Akgun, Zultanite Gems LLC, USA; the MarketDirect...the production is mixed with calcite. The spinel mine at Kuh-i-Lal is being operated by a skeleton crew |
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| Friday November 21, 12pm to 5pm Saturday November 22, 12pm to 5pm Sunday November 23, 12pm to 5pm Monday...2013 GROUP OF DEMANTOID GARNETS A parcel of seventy-one circular brilliantcut demantoid garnets displaying...GROUP OF EIGHT CARVED TURQUOISES Sleeping Beauty Mine, Arizona Suitable for mounting as either earrings...GEMSTONES AND MINERALS | 21 2036 2038 2037 2039 22 | BONHAMS 2036 PAIR OF FACETED CABOCHON SAPPHIRES...WORKS OF ART, GEMSTONES AND MINERALS | 25 2048 DEMANTOID GARNET Bright green in color, with excellent luster |
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| Ancient Egypt Hope Diamond 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 40 42 44 46 48 50 52 58 60...padparadscha Tourmaline – blue Cat’s eye Garnet – demantoid Opal – black Ruby – star Sapphire – blue Alexandrite...the Superpit is Australia’s largest open pit gold mine and is one of the largest open pit mines in the...Brilliant round Brilliant oval Brilliant round demantoid garnet Brilliant oval iolite Cabochon Sodalite...of Charlemagne | c.960 CE | Eight hinged plates of 22-karat gold with 144 en cabochon gems CROWN OF CHARLEMAGNE |
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| cm (4 inches), from the Morro da Mina manganese mine, Conselheiro Lafaiete, Minas Gerais, Brazil. Probably...2008 issue for his article on the Mockingbird gold mine). Like the rest of us on the staff, he will be striving...feldspar crystals. INTRODUCTION The South American region known as Patagonia, a barren tableland between...called “the Pampas”—a very rugged and windswept region which nevertheless is home to various flora and...in 1985 in order to maintain possession of the region and its tourism income. In the summer months the |
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| band in the blue part of the visible spectrum (at 22 000 cm"1). Pleochroism before and after heat treatment...et al. was said to have originated in the Wessel mine near Hotazel by Karuman, N. Cape Province, S. Africa...with Refractive Indices Higher than 1.81 YAG Demantoid Garnet Zircon (High) Sphene GGG Cubic Zirconia...quality, but aquamarines are found in the Baragoi region; there are some green and blue beryls (but not...Tourmaline mine (yellow-green, rose-red, yellow and colourless tourmaline), the Otjimbingwe mine (red and |
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| Colorless topaz Citrine (quartz) Blue zircon Demantoid (garnet) Red’tourmaline Glass imitation Colorless...Analcite Andradite Bixbyite Boleite Chromite Cuprite Demantoid Diamond Fabulite Fluorite Gahnite Gahnospinel...allocated to Mohs’ hardness scale. (See table, pages 22 and 23.) Gemstones of the scratch hardness (Mohs’...Diameter in mm Weight in carat eo ;ss 30 ae o © 22 3.0 © oe Optical Properties Of all the various...Oligoclase Opal Orthoclase Danburite Datolite Demantoid Diamond Diaspore Dickinsonite Indicolite Painite |
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| Ancient Egypt Hope Diamond 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 40 42 44 46 48 50 52 58 60...Sapphire—padparadscha Tourmaline—blue Cat’s-eye Garnet—demantoid Opal—black Ruby—star Sapphire—blue Alexandrite...the Superpit is Australia’s largest open pit gold mine and is one of the largest open pit mines in the...Brilliant round Brilliant oval Brilliant round demantoid garnet Brilliant oval iolite Cabochon Sodalite...of Charlemagne | c.960 CE | Eight hinged plates of 22-karat gold with 144 en cabochon gems CROWN OF CHARLEMAGNE |
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| the brisket to the antler tips, 23½ inches wide and 22 inches from the wall to the edge of the nose. Estimate:...well prepared with a lifelike look, 37 inches high, 22 inches wide and 27 inches from the wall to the tip...favorite, quite plentiful throughout South Africa, Namibia, and Zimbabwe. These are beautiful mounts with...excellent quality taxidermy and horns that measure 22 x 19½ and 19¾ x 18⅝ inches long. They are mounted...extremely difficult. The horns on this trophy Bull are 22⅜ x 22¼ inches long and the bases are 6¾ inches around |
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| Rhodesia, and S.W. Africa: Sri Lanka, Zimbabwe, and Namibia, respectively. However, although Madagascar is...and pressure conditions in a most clearly seen region may in rise greatly over a period of time....natural or synthetic but also to indicate the very mine from which it came! Inclusions are the most powerful...all but isotropic is 21 3 THERMAL PROPERTIES 22 by an insulated probe housing. Care must be taken...Enstatite(En 98 Fs 2 ): California Bronzile (En 7 8Fs 22 ): Quebec 4.0 a 3.53 a 3.531 4.915 366 a 3.196 |
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| yards below the sharp bend just south of Flour Mill Farm, a hard rib of " whin-ash ", dipping east at ten...bridge, erected for the convenience of neighbouring farm tenants, crosses the rail track, that the volcanic...the clearly interstratified ash zones which that region disclosed, were probably intercalated somewhere...asserting, when we discern amidst the ashes a layer of parrot coal, evidently the remains of old drift vegetation...here and there assumes a more emerald green or demantoid tint. This is not due to serpentinization, as |
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| Lot 1178 Back Cover: Lot 1082 PREVIEW Saturday May 22, 12pm – 5pm Sunday May 23, 12pm – 5pm Monday May...aegyptiacus Cenomanian, Middle Cretaceous Kem Kem Region of Southeastern Morocco A claw from the hand of...hadrosaurs were able to outrun T. rex. Measuring 22 x 9 x 8 in. Height including stand: 24 ¾ in $1,500...dinosaur. The oviraptorid theropod genus displayed a parrot-like head with toothless beak, long, powerful legs...species to have ever existed on Earth. Measuring 22 x 8 x 1 ½ in 1021 $1,500 - 2,000 NATURAL HISTORY |
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| where found in large deposits, such as in the copper mine at Rio Tinto in south-western Spain, it is still...the cutting of Marcasite was carried out in the region of Geneva and that the stones were exported to...to the catholic areas of St. Claude in the Jura region of eastern France. Among the refugees were goldsmiths...a watchmaking area. The Jura was a poor farming region and there was a ready supply of outworkers who...1748. A history of fossils. Thomas Osborne, London 22.Chalkin, C.W., 1978. Seventeenth century Kent. John |
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| of the Stone in Myth and in Rock 9 3 From Mine to “Mine”: The Emerald Business 21 4 Emeralds in World...could identify the country and sometimes the actual mine a particular stone came from. However, vaporizing...of some ocean. The glorious emeralds of the Muzo mine of Colombia are embedded in calcite veins found...been described for precious gems. r From Mine to “Mine”: The Emerald Business The rarity of emeralds...course, we don’t know if it was really an emerald, 22 r From Satan’s Crown to the Holy Grail although |
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| SPRING 2013 ISSUE 22 CHINA JEWELRY CONQUEST DESIGNERS‘ STRIKING INNOVATIONS Gem and Mineral Treasures...Years of History SPRING 2013 ISSUE 22 SPRING 2013 ISSUE 22 CHINA JEWELRY CONQUEST DESIGNERS‘ STRIKING...effect. CONTENTS 7 Foreword 8 20 10 12 14 18 20 22 24 24 32 38 50 52 38 58 60 62 64 66 Industry...Production in Coming Five Years Gemfields’ Kagem Mine. K agem Mining, the largest emerald producer in...media briefing. Gemfields has revived the emerald mine, since acquiring a share in 2008, by investing heavily |
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| issue’s contributors Lexi Erickson’s Pendant Parrot wing, orange sapphire, reticulation è “THE LADY...Lafayette, Louisiana, jewelry supplier is getting 22 LAPIDARY JOURNAL JEWELRY ARTIST more calls for...pattern. It’s one of my alltime favorites. Anneal the 22-gauge metal and roll it through the rolling mill...large enough for the major body of the piece and head 22-gauge sheet for the “cup and ring marks” Bezel wire...Everybody has a different bezel soldering technique. Mine is to place the perfectly aligned edges of the bezel |
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| 01_Cover_InColor23_summer_with spin_v2.indd 1 07/08/2013 12:22 PM Left: The late ‘Emerald Czar’ Victor Carranza...19, saw 583,448 carats of emeralds from the Kagem mine in Zambia offered, with all lots being sold for...abroad of capital. Gemfields operates the Kagem mine in the north of Zambia, in which it has a 75-percent...fellow shareholders in the world-class Kagem emerald mine. It remains our hope that a framework solution which...the Zambian Revenue Authority, in 2012 the Kagem mine contributed about 80 percent of the gemstone sector’s |
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| complete. Even in conservative Egypt, Hellenism a vast region. Further west the Celtic floral and prevailed:...motifs intended to amuse or delight the eye —a parrot, an elephant, or a butterfly. Round the waist of...Duchess of ing among white flowers and holding a parrot as Burgundy. Jewels of this style, in their pure...of them new to science. The enchanting green demantoid garnet was unknown until the 1860s, when speci®...1837-1914 more exotic varieties — alexandrite, demantoid garnet, and cat’s eye. The leek-green peridot |
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| Gem-A Conference 21–22 November 2015 The Gem-A Conference will be held on 21–22 November 2015, at the...colour-change axinite-(Mg) from Merelani, Tanzania; demantoid from Iran; benitoite from California; and daylight-luminescent...gathered in May 2014 from the surface of an old copper mine. Approximately 40 kg of rough material were recovered...been polished so far, in sizes from 17 × 25 mm to 22 × 38 mm. The material ranges from green (Figure 1)...from the Sweet Home mine in Colorado, USA, and also from the Kalahari Desert region in South Africa and |
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| interior supply . The uniform temperature of a region 40 to 60 feet below the sur face is about the same...water at 170 ° was en countered in the Comstock mine at a depth of 3,000 feet . Artesian wells are numerous...a thick ness of from 3,000 to 4,000 feet , the region covered included parts or all of the following...size and brilliancy were shown the writer at the mine . One very brilliant stone weighed slightly over...fall . > In No. 4 vein of the Newcastle , Wash . , mine masses of petrified fir wood and bark have been |
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| Photographing mlcrominerals by Betty WIiiiams Ralls 22 A MODIFIED BRILLIANT WITH SQUARE TABLE An easy-to-do...SAW Offlc:411'9 Gemstone replica of a Wyoming farm scene by Earl Spendlove Kenneth v . Zahn, President... 3000. 1, NAME Pound Lot Rough Rough Sapphlr9 Mine Run All sizes, colors and types. A real old time...Nephrila CebochonL Beautoful carvlngs. $ 12 pair 22. Mothw-ol-P-1 T... - - L 38mm soze. Top clnllecl...hexagonal, green. This specimen Is from the Sherman Mine, near Mullen, Idaho. In the center is smithsonite |
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| LIBERTI COPPER MINE, MARYLAND. By Vernon / . ~filler .................... 665 THE ALICE ZINC MINE OF SOUTHERN...camp of Copper City, better known as the Tubal Cain Mine. This camp was built around 1918 and had about a...body of manganese ore but none was found and the mine was shut Buckhorn Pass, Washinlfon 6 50 ROCKS...read about my hobby. William F. Veling, M. D . Aug. 22, 1946 Detroit, M ich. 652 ROCKS AND MINERALS ...Switzerland, the grass to emerald green gemmy demantoid from the Urals, an apple-green variety from Tilly |
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| Established Families of Six Miners Killed in Mogok Mine Collapse to Receive Compensation Gemstones Survey...postponed an auction of emeralds from its Kagem mine in Zambia by several months to February 2017 as...cushion-cut Fancy Argyle Violet from the Argyle mine The Rainbow necklace. n oria Vict chid Or le Purp...to be discovered pear and round- at the Argyle mine. The original rough cut shape white stone weighed...in Mogok Mine Collapse to Receive Compensation The families of six miners killed in a mine collapse in |
