 | | Journal (issue) | | Brazil: The Tourmalines of the Governador Valadares District Keith Proctor t , NOTES . i . AND NEW' TECHNIQUES...names. Ludovico il Moro, Duke of Milan, had a diamond pendant with three pearls, valued at 12,000 ducats...period. The tiny pearls, coming primarily from India or China, were drilled and threaded on white horsehair...same piece. This was the case with an elaborate diamond and pearl necklace constructed for Empress Eugknie...W L I N E S OF THE G O V E R N m O R VALADARES DISTRICT By Keith Proctor The previous article in this |  | | Journal (issue) | | L L Golconda! L L The Mineralogical Record SEPTEMBER–OCTOBER 2019 • VOLUME 50 • NUMBER 5 • $25 ...net SEPTEMBER–OCTOBER 2019 Articles The Golconda District, Minas Gerais, Brazil .............................. 643 by C. J. Stefano Sainte-Marie-aux-Mines Show 2019 ........................................COVER: AUTUNITE on TOURMALINE, 11.9 cm, from the Golconda I mine, Minas Gerais, Brazil Brice Gobin (Mineral...Menschen—Minen—Mineralien, Mineralogie in 10 Jahrtausenden (“Men—Mines—Minerals; Mineralogy over 10 Millennia,” 1978). |  | | Book | | Artificial Coloring of Stones IX. X. XI. 73 Diamond 75 Ruby and Sapphire 96 Emerald 105 XII....rays beautify, they devour it. The beauty of the diamond is the same, only it will tremble under the ardent...necessary, The stones accounted precious are the diamond, ruby, pearl, sapphire, emerald, Oriental cat's-eye...10, the number representing the hardness of the diamond, alogist greater that being the hardest substance...approximate. slightly. Some forms All stones vary of diamond, carbonado, for instance, some of the same form |  | | Journal (issue) | | role. It’s wonderful to show people a brilliant diamond, but it means more when you can follow up with...downturn in late 2008, we sold the Wittelsbach Blue Diamond for $24 million, a world record price back then...keep learning every day. Identifying Global Pink Diamond Sources Oiled Gems Lab Update GIA gratefully acknowledges...downturn in late 2008, we sold the Wittelsbach Blue Diamond for $24 million, a world record price back then...keep learning every day. Identifying Global Pink Diamond Sources Oiled Gems Lab Update A gratefully acknowledges |  | | Book | | attempts instance, at whether The 12 the diamond it course, the hardest of all Spirit standing...Touchstones of Character. but size; small For that Diamond, in lost £400,000; Borneo, the the contains...facets. God, which He only difference brilliant diamond, is receives one The and up, black. it back...Sometimes hear of we own lustre, which is for diamond has no a shine. —a It is very a be called...pearl’s Here have grace, until and are to the diamond; of both though David Brewster has no nonsense | | | Book | | attempts at instance, whether The 12 the diamond it course, with the standing, used, was ...Character. 18 size; but small never with that Diamond, in lost was the the £400,000; Borneo, there...sends upon the only difference brilliant a diamond, receives the one selfishly keeps again from...praise.” Sometimes which own lustre, for diamond a shine. —a for It is is has called true...cannot “infallible lies close light, one few diamond; the brilliance, into the a diamonds and |  | | Book | | gem minerals museums, the trade union of the diamond ters, in cut- and the designing and making of...Minbeals and Gems in Museum Collections XXXI. OuE Diamond Cuttbes and theie .... 253 Jbweley in the Aets...Kaffir employees Diamond Mines: Open gambling in the 28 compound, Kim- berley Mines 30 On the floors...washing machines at Kimberley. Diamond pulsator at De Beers Diamond Mines, Kimberley, South Africa Railway...32 ... 34 Kimberley Mines 36 to Kimberley, South Africa day's diamond wash at the The tunnel |  | | Book | | Trinkets Engraved Gems, Real and Imitation The Diamond Necklace The French Influence . bo The Victorian...THREE GEMSTONES XIV PRECIOUS STONES ib. The Diamond 2. Tales of Famous Diamonds The Great Mogul The...214 216 Contents CHAPTER PAGE Diamonds from India . Diamonds from Brazil . Diamonds from South Africa... 178 “Fairy stone” 179 Forms of cabochon Diamond crystal cut . 183 184 Emerald-cut 186 Rose-cut... List of Illustrations On page Step or trap cut Diamond . 189 sizes and values 192 Doublet counterfeit |  | | Book | | THE LURE OF COLORED STONES 80 4 BUILDING A DIAMOND EMPIRE 3 CONTROLLING A Essays Rjches The ...presence of minute traces of other substances. Diamond is chemicaldiflFerence for ly identical to graphite;...only a different crystalline structure gives diamond the hardness, clarity and flash for which it...brilliance as well as its color. 1 DIAMOND A rough diamond (left) glints in its dull setting of... Chapter cc THE FLOWERS OF THE KINGDOM T he diamond is the most precious of all stones, and it |  | | Book | | at definite times in definite places. As a diamond salesman was heard “The recently: boss said...very few stones of importance, e., i. zircon, diamond, sphene, and demantoid garnet.) Those readers...Lesrefraction and a small number of precious stones (diamond, garnet, and spinel) bend light as was illustrated...reflected onto the card. If the material is case of diamond, singly refractive (as in the garnet, spinel...Character of Refraction Gems Refraction Single: Diamond Garnet Spinel Opal Glass (all types) in the |  | | | | the lead rights over a large part of the Peak District. LEAD AND Lead is a heavy, dull grey metal...on the wails as paint. Increased output from the mines was made possible by new techniques developed in...of the British leadmining industry. Only a few mines managed to continue into the twentieth century....it with mineral. Pipes appear \ S A modern diamond drilling rig, set to bore inclined holes to intersect...beds of rock. Both are very common in the Peak District limestone of Derbyshire, but a very large flat |  | | Book | | the lead rights over a large part of the Peak District: LEAD AND Lead is a heavy, dull grey metal...on the wails as paint. Increased output from the mines was made possible by new _ techniques developed...of the British leadmining industry. Only a few mines managed to continue into the twentieth century...replaced it with mineral. Pipes appear A modern diamond drilling rig, set to bore inclined holes to intersect...beds of rock. Both are very common in the Peak District limestone of Derbyshire, but a very large flat |  | | Journal (issue) | | (0736) 788305 Calcite (Cornwall) UK Journal of Mines and Minerals Issue t, No 6 SPRING1989 EDITORIAL...Board. Articles should be sent to: Max D. Freier 'Golconda' Littleworth Lane, Rossington, Doncaster, South...Hodge For Your Bookshelf 28 The Ste. Marie-Aux-Mines Show 31 ADVERTISING M.P. Cooper For details...objective to publish three issues of the UK Jourrral of Mines and Minerals annually has yet to be achieved. The...reconstructions are used to show the history of the Peak District from its geological beginnings; its use by early |  | | Book | | notable British metal mines Whereas t o d a y B r i t a i n h a s a negligable production o f m e t...and exporter of metals. The tin and c o p p e r mines o f Cornwall a r e w e l l known, w h i l e areas...the lure of silver (as a by-product of the lead mines) that d r e w t h e Romans t o these isles. I t...tons of these metals have been extracted from the mines of Britain. By t h e o p e n i n g years o f t h...the severe flooding problems of the deep Cornish mines p r o d u c e d a n e v e n m o r e r e f i n e |  | | Book (chapter) | | Dana 7th II, 1064 (1951). galacia = corundum or diamond ?, de Fourestier 127 (1999). Galactic gold = black...= bituminous coal, Thrush 475 (1968). Galician diamond = transparent quartz, Papp 60 (2004). gálickő =...quartz, Robertson 18 (1954). gelacia = corundum or diamond ?, de Fourestier 129 (1999). gel-anatase = colloidal...hydrocarbon, Atencio 91 (2000). gelosia = corundum or diamond ?, de Fourestier 129 (1999). gelosite = unknown...gem jade = jadeite, Thrush 571 (1968). Gemma = diamond, Haditsch & Maus 66 (1974). gemma divi stephani |  | | Book (edition) | | his bizarre brush with the so,called "Arizona diamond fields," no recollections of cattle ranching on...merchantmen to break the monopoly of the great East India Company. The Yankee Fan Kuei carried their trade...King had become the principal parmer in the East India firm of King & Talbot, with a countinghouse on Front...its stock upon the market. But production at the mines had slumped, and Olmsted wel, corned expert counsel...father-"Old Bullion"-and sus, tained the Mariposa mines on its outcrops of the Mother Lode. Problems of |  | | Journal (volume) | | valleys will be only too glad to allow the hydraulic mines to be reopened if the owners will pay for keeping...proposed well equipped and well managed California mines. bills for presentation to the State Legislature...10-stamp and a small hoist- value of mines in the district in knowledge now possessed a the of...Calaveras and x 15 three 5j Amador, are other mines upon which similar work is being done, and the amount...this built with a capacity years re- cost of mines and to the old mill, and chlor inatioD made |
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Golconda Mines, Golconda, Hyderabad District, Telangana, India