Jean-Baptiste Tavernier
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@Ems & Gemoxogg
@ems& GemoXogg A bi-monthly Deriodical, without paid advertising, supported bv subecriptions from Gemologists and other gem enthwists, aims to increme the gem merchant's knowledge \ and ability in order that he may protect more thoroughlv his cwtomen' bst interets- VOLUME I MARCH-APRIL. 1934 NUMBER 2 Editorial Forum-.---..--.. ----,--------------.-.-34 Mothers' Day Gem to Be Selected,B. W. Bell.-.-.--.-.-".-.-,-.-..-..-.-36 Diamond Loupes, Robert M. Shipleg--- .---.-...----..---38 Courses in Precious Stones at Columbia University, Prof . Paul F. Kerr......--- 39 The Regent Diamond, Robert M. Shiplea-..... 4L The Scientists' View of the Cultivated Pearl. A. McC. Beckleg.,....... ..-........-.........43 Biographical Sketches-Dr. Ren6 Engel , Bobert Shipleu, Jr. 45 Rough Diamonds Presented to Institute---.--.----.-...---...-.-.-"-----,-...46 Sapphire, Milton D. Graoend,er-..------..--.---.... .....-.-47 Monthly Report of Diamond Market---,.-.--. --.-.--.---48 National Sales Campaign of the A.G.S.---. -........49 Straight Striae in Synthetics, Robert Shipley, Jr.......-......-..-.53 The Toughness of Gems-.- .-.-..----...---.55 Laymen Groups Hear Gemological Talks--. .---..--.-56 Selected Bibliography ...-............-......,57 Book Reviews, Robert M. Shipleg---- .............----.---.-57 The Amateur Laboratory, W. R. Leonard'-------------.....----.-----..--.-59 A Gemological Encyclopedia, Henrg E. Briggs, Ph'D'---------..-6l How to Buy Diamonds, Robert M. Shiplegl---- ..----.--63 Gemological Glossary.----.-- . -.-. , . ..... .- .-...--.-65 -
The Journal of Gemmology Editor: Dr R.R
he Journa TGemmolog Volume 25 No. 8 October 1997 The Gemmological Association and Gem Testing Laboratory of Great Britain Gemmological Association and Gem Testing Laboratory of Great Britain 27 Greville Street, London Eel N SSU Tel: 0171 404 1134 Fax: 0171 404 8843 e-mail: [email protected] Website: www.gagtl.ac.uklgagtl President: Professor R.A. Howie Vice-Presidents: LM. Bruton, Af'. ram, D.C. Kent, R.K. Mitchell Honorary Fellows: R.A. Howie, R.T. Liddicoat Inr, K. Nassau Honorary Life Members: D.). Callaghan, LA. lobbins, H. Tillander Council of Management: C.R. Cavey, T.]. Davidson, N.W. Decks, R.R. Harding, I. Thomson, V.P. Watson Members' Council: Aj. Allnutt, P. Dwyer-Hickey, R. fuller, l. Greatwood. B. jackson, J. Kessler, j. Monnickendam, L. Music, l.B. Nelson, P.G. Read, R. Shepherd, C.H. VVinter Branch Chairmen: Midlands - C.M. Green, North West - I. Knight, Scottish - B. jackson Examiners: A.j. Allnutt, M.Sc., Ph.D., leA, S.M. Anderson, B.Se. (Hons), I-CA, L. Bartlett, 13.Se, .'vI.phil., I-G/\' DCi\, E.M. Bruton, FGA, DC/\, c.~. Cavey, FGA, S. Coelho, B.Se, I-G,\' DGt\, Prof. A.T. Collins, B.Sc, Ph.D, A.G. Good, FGA, f1GA, Cj.E. Halt B.Sc. (Hons), FGr\, G.M. Howe, FG,'\, oo-, G.H. jones, B.Se, PhD., FCA, M. Newton, B.Se, D.PhiL, H.L. Plumb, B.Sc., ICA, DCA, R.D. Ross, B.5e, I-GA, DGA, P..A.. Sadler, 13.5c., IGA, DCA, E. Stern, I'GA, DC/\, Prof. I. -
The Speculative Activities of John Law
“I am not master of events.” John Law’s Bargains with Lord Londonderry, 1717–1729 Paper for University of California at Riverside seminar November 17, 2008 LARRY NEAL Professor Emeritus of Economics University of Illinois at Urbana-Champaign Research Associate, NBER Visiting Professor, London School of Economics Visiting Kenneth L. Sokoloff Professor of Economic History, UCLA ABSTRACT The risk-managing strategies of Lord Londonderry, second son of Thomas “Diamond” Pitt, during the financial boom and bust of the Mississippi and South Sea Bubbles demonstrate how risk takers can lay off their bets along several dimensions – time (forward markets), space (foreign exchange), and orthogonal (political favors). By contrast, John Law – his mentor, counterparty, and eventual defaulter – managed to fail on each account. Tracing the speculations of each man through a detailed examination of the ultimate contract between them made in August 1719 reveals how each man attempted to lay off the risks he assumed. Ultimately, Law lost over £500,000 by the end of August 1720 while Londonderry gained little. Nevertheless, the work out arranged between them and their respective agents demonstrates the rational calculations of each man in more than financial terms, and possibly restores some of their respective reputations. 2 “I am sorry you lost money by my advice, but I did the same thing myself and I am not master of events.” John Law, letter to M. Hippolyte Mary at Genoa, 24 May 1721. Bibliothèque Méjanes, Aix-en-Provence, Ms. 355. Introduction The connection between the Mississippi and South Sea bubbles during the years 1719 and 1720 may seem obvious. -
Jza Magazine Issue 2021
Officially endorsed by the Jewellery Council of South Africa (JCSA) Regency Rocks 2021 AUTUMN Magical win charms with Tsogo Sun Silver Linings Storybook Now serving fabulousness! Photo by Karina Tess on Unsplash All that glitters . and more Subscribe for FREE! Email your full name and contact number to [email protected] 2 Of course, in a world which is frequently resetting itself – A note from the regardless of season – and in which we ourselves search for different ways to re-emerge, EDITOR- colour is a welcome tonic for the body, mind and soul. So the canvas of the storybook IN-CHIEF you're about to feast your eyes upon has been painted with passion, life, love and even laughter. Our paintbrush Saturday, 20 March is the is called “jewellery” and it’s all in colour! autumnal equinox in South Africa. And Team JZA is rather delighted Across the blue seas, we welcome Smitha Sadanandan as that this issue not only echoes our Editor-at-Large, who reminded me: “It doesn’t matter if the spectrum of the season’s it’s autumn – who doesn’t like ice-cream!?” gorgeous hues of gold, orange, And on that note, enjoy our serving of fabulousness! yellow, burgundy and brown, but pays equal attention to the rest of nature’s wonderful palette. Although, with the autumn breezes in the air, we might sway over a little to the odd Editor-in-Chief favourite or two (or three)… Jason Aarons Smitha Sadanandan Adri Viviers Gill Hyslop JZA's Editor-at-Large is Chicago- Adri is Editor of JZA’s sister Gill has been in the publishing based Smitha – a freelance magazine, SA Jewellery News industry for more than 30 years, journalist specialising in the (SAJN), the official publication of having worked on numerous B2B luxury industry. -
Diamonds and Precious Stones: Their History, Value, and Distinguishing
IVERSITY OF CALIFORNIA, SAN DIEGO 1 III I III I II II III I II! I II 3 1822019442839 RR.G.S. .. :. , 335% DIAMONDS AND PRECIOUS STONES: THEIR HISTORY, VALUE, AND DISTINGUISHING CHARACTERISTICS. WITH SIMPLE TESTS FOR THEIR IDENTIFICATION BY HARRY EMANUEL, F.R.G.S. SECOND EDITION, WITH A NEW TABLE OF THE PRESENT VALUE OF DIAMONDS. LONDON: JOHN CAMDEN HOTTEN, PICCADILLY. 1867. right of Translation is reset ved. PREFACE TO NEW EDITION HE rapid exhaustion of the first edition, and the numerous demands for more copies, having proved to the Author that, contrary to his expectation, a plain and unvarnished statement of facts connected with precious stones has proved interesting not only to the trader in gems, and to the amateur in mineralogy, but to the general public he has been emboldened to publish another edition, in which he has made several important corrections and additions which have been necessitated by the course of events. has The prediction of the rise in the value of diamonds been verified, as will be seen by a comparison of the present table of values with that of the preceding edi- crisis and tion in spite of an unprecedented subsequent iv Preface to New Edition. commercial depression, and notwithstanding the number of purchasers of gems must have been lessened by the ruin of the thousands of persons who, when making, according to their idea, a solii investment, were in fact only purchasing an unlimited liability. Notwithstanding this commercial crisis and depression, the value of diamonds bas steadily augmented. The Author has incurred considerable animosity in ' some quarters from having disclosed the secrets of the trade,' but he considered at the time, and still thinks, that to an honest dealer, knowledge on the part of the public is a evil benefit instead of an ; and against those who bring a stigma on an honourable profession by unfair means, he is only too delighted to put the public on their guard. -
A Crystallographic Analysis of the Tavernier Blue Diamond
ACRYSTALLOGRAPHIC ANALYSIS OF THE TAVERNIER BLUE DIAMOND Scott D. Sucher While the Tavernier Blue has been established as the “grandparent” of the Hope diamond, the only firsthand historical documentation for it is a 17th century line drawing of questionable accu- racy. It has been suggested that the diamond was crudely cut, conforming to the shape of the original crystal. If this is correct, then it should be possible to correlate the facets on the Tavernier Blue to the faces of a diamond crystal, and thus gain information on the crystallography of the original rough. This study used this information, the original drawings, and a computer model of the French Blue diamond generated from the laser scan of a recently discovered lead cast, to gen- erate a computer model of the Tavernier Blue. This new model completely encloses the comput- er model of the French Blue, conforms to Tavernier’s physical description, and establishes the ori- entation of the finished diamond within the original diamond crystal. ecent evidence suggests that the Hope dia- The recent discovery of a lead cast of the French mond was cut in the late 18th or early 19th Blue at the Muséum National d’Histoire Naturelle Rcentury from the French Blue diamond, (MNHN) in Paris has provided more accurate infor- which itself was cut in the 1670s from the mation concerning the physical attributes of that dia- Tavernier Blue (see, e.g., Attaway, 2005; Farges et mond. Farges et al. (2008, 2009) created an updated al., 2008, 2009). Yet the only documentation of the computer model from a laser scan of the lead cast. -
Heat Treatment of Geuda Stones - Spectral Investigation
Volume 21 No. 7. July 1989 ^e Journal of SUDAN Gemmology GEMMOLOGICAL ASSOCIATION OF GREAT BRITAIN OFFICERS AND COUNCIL President: *Sir Frank Claringbull, Ph.D., EInst.E, FGS Vice-President: R. K. Mitchell, FGA Chairman: *D. J. Callaghan, FGA Vice-Chairman: *N. W. Deeks, FGA Honorary Treasurer: *N. B. Israel, FGA Members elected to Council: *A. J. Allnutt, M.Sc, J. W. Harris, B.Sc, D. Morgan, FIBF, FGA Ph.D., FGA M.Sc, Ph.D. *J. B. Nelson, Ph.D., *E. M. Bruton, FGA J. A. W Hodgkinson, FGA FRMS, F.Inst.E, FGA *C. R. Cavey, FGA D. Inkersole, FGA W Nowak, C.Eng., E J. E. Daly, B.Sc, B. Jackson, FGA ER.Ae.S., FGA FGA *E. A. Jobbins, B.Sc, C.Eng., M. J. O'Donoghue, *A. E. Farn, FGA FIMM, FGA MA, FGS, FGA A. J. French, FGA *G. H. Jones, B.Sc, Ph.D., *P. G. Read, C.Eng., G. Green, FGA FGA MIEE, MIERE, FGA *R. R. Harding, B.Sc, D. G. Kent, FGA *K. Scarratt, FGA D.Phil, FGA D. M. Larcher, FGA *C. H. Winter, FGA ^Members of the Executive Committee Branch Chairmen: Midlands Branch: J. Leek, FGA North-West Branch: R. Perrett, FGA South Yorkshire & District Branch: G. A. Massie, FGA Examiners: A. J. Allnutt, M.Sc., Ph.D., FGA D. G. Kent, FGA E. M. Bruton, FGA P. Sadler, B.Sc, FGS, FGA A. E. Farn, FGA K. Scarratt, FGA R. R. Harding, B.Sc, D.Phil., FGA E. Stern, FGA E. A. Jobbins, B.Sc, C. Eng., FIMM, FGA M. -
Volume 35 / No. 1 / 2016
GemmologyThe Journal of Volume 35 / No. 1 / 2016 The Gemmological Association of Great Britain Save the date Gem-A Conference Saturday 5 and Sunday 6 November 2016 Visit www.gem-a.com for the latest information Join us. The Gemmological Association of Great Britain, 21 Ely Place, London, EC1N 6TD, UK. T: +44 (0)20 7404 3334 F: +44 (0)20 7404 8843. Registered charity no. 1109555. A company limited by guarantee and registered in England No. 1945780. Registered Office: 3rd Floor, 1-4 Argyll Street, London W1F 7LD. Conference_03-2016_March-April_Save The Date_A4.indd 1 12/04/2016 10:44:17 Contents GemmologyThe Journal of Volume 35 / No. 1 / 2016 COLUMNS p. 22 1 What’s New DiamondDect for diamond identification|Triple D photo kit|Upgraded Diamond- View|Variofoc LED lighting system|AGTA Tucson seminars| Responsible sourcing of coloured stones report|World Gold Council report|GSJ 2015 Annual Meeting abstracts|ICGL Newsletter|Large CVD synthetic diamond seen p. 64 by HRD Antwerp|MAGI diamond type report|SSEF Facette|Updated Journal cumulative index|Wyoming jade report|GemeSquare app and GemePrice 5.0|Historical reading lists|Hyperion inclusion search engine|Gems from the French Crown Jewels exhibit ARTICLES 6 Gem Notes Apatite from Iran|Purple apa- Feature Articles tite from Namibia|Cordierite from Madagascar|Emerald 28 Characterization of Oriented Inclusions in Cat’s-eye, and pyrite mixture from Co- Star and Other Chrysoberyls lombia|Garnet from Mahenge, By Karl Schmetzer, Heinz-Jürgen Bernhardt and H. Albert Gilg Tanzania|Grandidierite from -
Paris Is the Capital and Largest City of France. It Is Situated on the River Seine, in Northern France, at the Heart of the Ile-De-France Region
Paris Paris is the capital and largest city of France. It is situated on the river Seine, in northern France, at the heart of the Ile-de-France region. With about 42 million tourists annually in the city and its suburbs, Paris is the most visited city in the world. The city and its region contain 3,800 historical monuments and four UNESCO World Heritage Sites. Paris is the head of barge and ship navigation on the Seine and is the fourth most important port in France (after Marseille, Le Havre, and Dunkerque). The Loire, Rhine, Rhone, Meuse and Scheldt rivers can be reached by canals connecting with the Seine. Paris is also a major rail, highway, and air transportation hub. Three international airports, Orly, Roissy and Le Bourget, serve the city. The city's subway system, the métro, was opened in 1900. Paris has many nicknames, but its most famous is "La Ville-Lumière" ("The City of Light"), a name it owes first to its fame as a centre of education and ideas during the Age of Enlightenment and later to its early adoption of street lighting. France is a nation of food lovers and the food culture contains some interesting facts. Food is to be enjoyed and savored, for example, lunch time in France is usually two hours long just for this reason. Except for large cities, almost everything closes from noon until two P.M when French restaurants are open for lunch. There are many restaurants operating in France with over 9,000 restaurants in Paris alone - from neighborhood Bistros, to lively Brasseries, to intimate Cafés and famous Michelin-Starred Restaurants. -
^Ejournal of Gemmology
Volume 20 No. 4 October 1986 GAGTL EDU Set 3 ^eJournal of Gemmology GEMMOLOGICAL ASSOCIATION OF GREAT BRITAIN OFFICERS AND COUNCIL President: Sir Frank Claringbull Ph. D., F. Inst. P ., F. G. S. Vice-Presidents: J. R. H. Chisholm, M.A., F.G.A. R. K. Mitchell, F.G.A. Chairman: D. J. Callaghan, F.G.A. Vice-Chairman: N. W. Deeks, F.G.A. Honorary Treasurer: N. B. Israel, F.G .A. FellO'Ws elected to Council: C. R. Cavey B. Jackson M. J. O'Donoghue, L. F. Cole C. B. Jones M. A., F.G.S. R. W. Croydon D. M. Larcher P. G. Read, C.Eng., P. J. E. Daly, B.Sc. D. Morgan M. I.K E., M.LE.R.E. A. J. French G. Neary A. W. R. Round S. E. Hiscox J. B. Nelson, Ph.D., F.R.M.S., E. Stern J. A. W. Hodgkinson F. Inst.P., F.G.S. C. H. Winter D. Inkersole W. Nowak, C.Eng., F.R.Ae.S. Branch Chairmen: Midlands Branch: P. West, F.G.A. North-West Branch: S. Hill, F.G.A. South Yurkshire & District Branch: J. L Reynolds, F.G.A. Examiners: E. A. Jobbins, B.Sc., F.I.M.M., F.G.A. A. J. Allnutt, M.Sc., Ph.D., F.G.A. R. R. Harding, B. Sc., D .PhiL, F.G .A. G. H. Jones, B.Sc., Ph.D., F.G.A. D. G, Kent, F.G.A. E. M. Bruton, F.G.A. P. Sadler,B.Sc., F.G.S., F.G.A. -
Deccan Education Society's Fergusson College, Pune
Deccan Education Society’s Fergusson College, Pune Department of Geology CONTENT FEATURE STORY 15 Lonar lake of Heritage Explore one of the few meteor craters in India 51 The Telltale Fossil Wood of Sattanur Story of the plants from Cretaceous. 55 D for Diamonds Journey into the world of most beautiful and attractive gem 60 Causative Factors of Malin Landslide Insight into the disaster of the year 2 CONGLOMERATE OTHER Piezoelectricity 11 Mentors Dr. R.G.Pardeshi Geology Science Principal Fergusson College, Pune of Earth 18 Dr.R.N. Mache Crystal Caves Head, Department of Geology at Naica 21 Fergusson College, Pune Geological Timescale 23 Dr. Tanuuja Marathe Dr. P.K.Sarkar Geology around Sangamner and Aane ghat area 26 Prof. S.D.Raut Dr. S.N.Mude Introducing and Classifying Prof. Devdutt Upasani Dinosuars 29 Prof. Madhuri Ukey Prof. Aneesh Soman Batu caves Malaysia 35 Mr. Chinmay Thite Mr. Amey Dashputre Rare Polymorphs of Miss Aditi Bharadwaj Olivine and Quartz 38 Editorial Committee Fluorescence of minerals 44 Prof. Devdutt Upasani Mr. Chinmay Thite The Gabbro Intrusions 47 Mr. Amey Dashputre T.Y.B.Sc. Geology Students 2014-15 The most expensive coconut of my life 49 Cover Page and Back Cover : Columns of basalts Rolling Stones 64 from Isle of Staffa,(Fingal’s Cave) Scotland, United Kingdom Where giants walked 66 Photography : Chinmay Thite Magazine cover and Design : Chinmayi Dumbre Rocky Times 70 Flash Stones 73 Published by : Department of Geology Fergusson College, Pune REGULARS Contact : [email protected] Preface 4 For academic and educational purposes only Foreword 5 Our Department 7 3 CONGLOMERATE PREFACE Student and Staff Department of Geology Fergusson College Geology is an earth science comprising E-Geo Magazine aims at taking the subject to the study of solid Earth, the rocks of which it the masses, especially the school students, so is composed, and the processes by which they that the subject can be nurtured in their minds change. -
Famous Diamonds Oliver Cummings Farrington 1929.Pdf
THE UNIVERSITY OF ILLINOIS LIBRARY ILLINOIS LIBRARY M URBANA CHAMPAIGN BOOKSTACKS / FAMOUS DIAMONDS BY OLIVER C. FARRINGTON Curator of Geology Geology Leaflet 10 FIELD MUSEUM OF NATURAL HISTORY CHICAGO 1929 Natural History SmrYcy LIST OF GEOLOGICAL LEAFLETS ISSUED TO DATE No. 1. Model of an Arizona Gold Mine ..-....$ .10 No. 2. Models of Blast Furnaces for Smelting Iron . .10 No. 3. Amber—Its Physical Properties and Geological Occurrence 10 No. 4. Meteorites 10 No. 5. Soils 10 No. 6. The Moon .10 No. 7. Early Geological History of Chicago 25 No. 8. Agate 50 No. 9. How old are Fossils? .25 No. 10. Famous Diamonds 25 STEPHEN C. SIMMS, Director FIELD MUSEUM OF NATURAL HISTORY CHICAGO. U.S.A. 2 Field Museum op Natural History The form, size and color of a number of these dia- monds are recorded in models which are displayed in Higinbotham Hall of the Museum. This leaflet is devoted to a brief history and description of these. It may be re- marked in advance that much that is legendary is con- tained in the accounts of the older diamonds, and it can hardly be deemed possible always to separate the tradi- tional from the true. In such cases the would-be his- torian can do little more than to record some of the different legends. CULLINAN Of all known gem diamonds, this is by far the largest. Not only did this diamond in the rough greatly exceed in size and weight any other of gem quality known, but a much larger cut stone was obtained from it than had ever been produced before.