The Wittelsbach-Graff Owned by the Legendary Diamond House – Graff
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
The World of Pink Diamonds and Identifying Them
GEMOLOGY GEMOLOGY as to what dealers can do to spot them using standard, geologists from Ashton Joint Venture found certain indicator The World of Pink Diamonds inexpensive instruments. The commercial signifcance of minerals (such as ilmenite, chromite, chrome diopside, the various types will also be touched on. and pyrope garnet) in stream-gravel concentrates which indicated the presence of diamond-bearing host rocks. and Identifying Them Impact of Auction Sales Lamproites are special ultrapotassic magnesium-rich In the late 1980s, the public perception surrounding fancy- mantle-derived volcanic rocks with low CaO, Al2O3, Na2O colored diamonds began to change when the 0.95-carat and high K2O. Leucite, glass, K-richterite, K-feldspar and Cr- By Branko Deljanin, Dr Adolf Peretti, ‘Hancock Red’ from Brazil was sold for almost $1 million per spinel are unique to lamproites and are not associated with and Matthias Alessandri carat at a Christie’s auction. This stone was studied by one kimberlites. The diamonds in lamproites are considered to be of the authors (Dr. Adolf Peretti) at that time. Since then, xenocrysts and derived from parts of the lithospheric mantle Dr. Peretti has documented the extreme impact this one that lies above the regions of lamproite genesis. Kimberlites sale has had on subsequent prices and the corresponding are also magmatic rocks but have a different composition recognition of fancy diamonds as a desirable asset class. The and could contain non-Argyle origin pink diamonds. demand for rare colors increased and the media began to play a more active role in showcasing new and previously Impact of Mining Activities unknown such stones. -
New Generations of Boron-Doped Diamond Structures by Delta-Doping Technique for Power Electronics : CVD Growth and Characterization Alexandre Fiori
New generations of boron-doped diamond structures by delta-doping technique for power electronics : CVD growth and characterization Alexandre Fiori To cite this version: Alexandre Fiori. New generations of boron-doped diamond structures by delta-doping technique for power electronics : CVD growth and characterization. Electronics. Université de Grenoble, 2012. English. NNT : 2012GRENI018. tel-00967208v2 HAL Id: tel-00967208 https://tel.archives-ouvertes.fr/tel-00967208v2 Submitted on 28 Jun 2017 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. THÈSE Pour obtenir le grade de DOCTEUR DE L’UNIVERSITÉ DE GRENOBLE Spécialité : Matériaux, Mécanique, Génie civil, Electrochimie Arrêté ministériel : 7 août 2006 Présentée par Alexandre FIORI Thèse dirigée par Franck Omnès et codirigée par Julien Pernot préparée au sein de l’institut Néel au CNRS à Grenoble dans l'École Doctorale I-MEP2 : Ingénierie – Matériaux, mécanique, Environnement, Energétique, Procédés, Production Nouvelles générations de structures en diamant dopé au bore par technique de delta-dopage pour l’électronique de puissance : croissance par CVD et caractérisation Thèse soutenue publiquement le 24 octobre 2012, devant le jury composé de : M. Christophe VALLEE Professeur, Université de Grenoble, Président M. Ken HAENEN Professeur, Université de Hasselt, Rapporteur M. -
PGDNET Education
ALCHEMY ABOVE EARTH ABOUT PURE GROWN DIAMONDS Conceived in 2014, Pure Grown Diamonds (PGD) has been growing steadily in the USA’s big and small multi-brand jewelry retail stores. It distinguishes itself sharply in the very source of the jewels – they are grown above the earth. A state of the art facility uses cutting edge technology in an environment that mimics nature below the earth. PGD is built on an intensely sharp competitive advantage – ability to produce very high quality Type IIa diamonds that can go upto 5 carat stone in cut and polished form. Since these diamonds are sustainably grown above earth with fair production practices, they are ethical in the truest sense and leave a significantly smaller carbon footprint when compared to mined diamonds. OUR PRODUCT Pure Grown Diamonds are grown above the earth using cutting-edge technology that allows consistent production of high quality, stunning Type IIa diamonds with unmatched brilliance. Our diamonds range go up to 5 carats, making them the perfect representation of the unique relationship the couple shares. We offer a variety of loose diamonds and finished jewelry. What are Type IIa diamonds? Diamond is 99.95 percent carbon. The other 0.05 percent can include one or more trace elements, or impurities, which are atoms that aren’t part of the diamond’s essential chemistry. Diamond type is a method of scientifically classifying diamonds, both grown and mined, by the level and type of their chemical impurities. Extremely rare in nature, Type IIa diamonds account for less than 2% of the world’s mined diamonds. -
The House of Coburg and Queen Victoria: a Study of Duty and Affection
University of Nebraska at Omaha DigitalCommons@UNO Student Work 6-1-1971 The House of Coburg and Queen Victoria: A study of duty and affection Terrence Shellard University of Nebraska at Omaha Follow this and additional works at: https://digitalcommons.unomaha.edu/studentwork Recommended Citation Shellard, Terrence, "The House of Coburg and Queen Victoria: A study of duty and affection" (1971). Student Work. 413. https://digitalcommons.unomaha.edu/studentwork/413 This Thesis is brought to you for free and open access by DigitalCommons@UNO. It has been accepted for inclusion in Student Work by an authorized administrator of DigitalCommons@UNO. For more information, please contact [email protected]. THE HOUSE OF COBURG AND QUEEN VICTORIA A STORY OF DUTY AND AFFECTION A Thesis Presented to the Department of History and the Faculty of the Graduate College University of Nebraska at Omaha In Partial Fulfillment of the Requirements for the Degree Master of Arts by Terrance She Ha r d June Ip71 UMI Number: EP73051 All rights reserved INFORMATION TO ALL USERS The quality of this reproduction is dependent upon the quality of the copy submitted. In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted. Also, if material had to be removed, a note will indicate the deletion. Diss««4afor. R_bJ .stung UMI EP73051 Published by ProQuest LLC (2015). Copyright in the Dissertation held by the Author. Microform Edition © ProQuest LLC. All rights reserved. This work is protected against unauthorized copying under Title 17, United States Code ProQuest LLC. -
A Defect Study and Classification of Brown Diamonds with Deformation
minerals Article A Defect Study and Classification of Brown Diamonds with Deformation-Related Color Thomas Hainschwang 1,*, Franck Notari 2 and Gianna Pamies 1 1 GGTL Laboratories, Gnetsch 42, 9496 Balzers, Liechtenstein; [email protected] 2 GGTL Laboratories, 2 bis route des Jeunes, 1227 Geneva, Switzerland; [email protected] * Correspondence: [email protected]; Tel.: +423-262-24-64 Received: 3 September 2020; Accepted: 7 October 2020; Published: 12 October 2020 Abstract: For this study, the properties of a large sample of various types of brown diamonds with a deformation-related (referred to as “DR” in this work) color were studied to properly characterize and classify such diamonds, and to compare them to pink to purple to red diamonds. The acquisition of low temperature NIR spectra for a large range of brown diamonds and photoexcitation studies combined with various treatment experiments have opened new windows into certain defect characteristics of brown diamonds, such as the amber centers and naturally occurring H1b and H1c centers. It was determined that the amber centers (referred to as “AC” in this work) exhibit rather variable behaviors to annealing and photoexcitation; the annealing temperature of these defects were determined to 1 range from 1150 to >1850 ◦C and it was found that the 4063 cm− AC was the precursor defect of many other ACs. It is suggested that the amber centers in diamonds that contain at least some C centers are essentially identical to the ones seen in diamonds without C centers, but that they likely have a negative charge. -
The Holy Roman Empire [1873]
The Online Library of Liberty A Project Of Liberty Fund, Inc. Viscount James Bryce, The Holy Roman Empire [1873] The Online Library Of Liberty This E-Book (PDF format) is published by Liberty Fund, Inc., a private, non-profit, educational foundation established in 1960 to encourage study of the ideal of a society of free and responsible individuals. 2010 was the 50th anniversary year of the founding of Liberty Fund. It is part of the Online Library of Liberty web site http://oll.libertyfund.org, which was established in 2004 in order to further the educational goals of Liberty Fund, Inc. To find out more about the author or title, to use the site's powerful search engine, to see other titles in other formats (HTML, facsimile PDF), or to make use of the hundreds of essays, educational aids, and study guides, please visit the OLL web site. This title is also part of the Portable Library of Liberty DVD which contains over 1,000 books and quotes about liberty and power, and is available free of charge upon request. The cuneiform inscription that appears in the logo and serves as a design element in all Liberty Fund books and web sites is the earliest-known written appearance of the word “freedom” (amagi), or “liberty.” It is taken from a clay document written about 2300 B.C. in the Sumerian city-state of Lagash, in present day Iraq. To find out more about Liberty Fund, Inc., or the Online Library of Liberty Project, please contact the Director at [email protected]. -
The Glorifying History of Golconda Fort
High Technology Letters ISSN NO : 1006-6748 The Glorifying History of Golconda Fort Dr.K.Karpagam, Assistant Professor, Department of History, D.G.Government Arts College for Women, Mayiladuthurai, Nagapattinam District – 609001 Abstract India is a vast country with a lot of diversity in her physical and social environment. We see people around us speaking different languages, having different religions and practising different rituals. We can also see these diversities in their food habits and dress patterns. Besides, look at the myriad forms of dance and music in our country. But within all these diversities there is an underlying unity which acts as a cementing force. The intermingling of people has been steadily taking place in India over centuries. A number of people of different racial stock, ethnic backgrounds and religious beliefs have settled down here. Let us not forget that the composite and dynamic character of Indian culture is a result of the rich contributions of all these diverse cultural groups over a long period of time. The distinctive features of Indian culture and its uniqueness are the precious possession of all Indians. Significance : The art and architecture of a nation is the cultural identity of the country towards the other countries and that's why the country which has a beach art and architecture is always prestigious to the other countries. The architecture of India is rooted in its history, culture and religion. Among a number of architectural styles and traditions, the contrasting Hindu temple architecture and Indo- Islamic architecture are the best known historical styles. Both of these, but especially the former, have a number of regional styles within them. -
Novel Development of High-Pressure Synthetic Diamonds “Ultra-Hard Nano-Polycrystalline Diamonds”
SPECIAL Novel Development of High-Pressure Synthetic Diamonds “Ultra-hard Nano-polycrystalline Diamonds” Hitoshi SUMIYA We have succeeded in synthesizing a single-phase (binderless) ultra-hard nano-polycrystalline diamond (NPD) by direct conversion sintering from graphite under ultra-high pressure and high temperature. The hardness of NPD is considerably high, far surpassing that of single-crystal diamonds even at high temperature. In addition, NPD shows outstanding strength, possessing no cleavage features and no anisotropy of mechanical properties. The NPD consists of very fine grains of several tens nanometers without containing any secondary phases and binder materials which greatly affect the mechanical properties and thermal stability. These characteristics of NPD suggest potential applications of this novel material to innovative cutting tools and wear resistance tools. This report reviews our systematic studies concerning NPD in terms of its synthesis mechanism, characteristics and applications. Keywords: diamond, hardness, nano-polycrystal, high pressure synthesis, direct conversion 1. Introduction free from such sintering aids and binders, are considered to be ideal hard materials, with hardness, strength, and thermal We have developed a novel diamond that far surpasses stability that are all well balanced. It is known that such sin- conventional diamonds in hardness, strength, and thermal gle-phase polycrystalline diamonds can be obtained with the stability. That is newly developed translucent polycrystalline solid-phase sintering of diamond powders at ultra-high pres- diamond consists only of ultra-fine diamond grains of sev- sures/temperatures or with chemical vapor deposition eral tens of nanometers which are directly bonded to each (CVD). However, polycrystalline diamonds characterized by other with extreme solidness. -
Bavaria the Bavarians Emerged in a Region North of the Alps, Originally Inhabited by the Celts, Which Had Been Part of the Roman Provinces of Rhaetia and Noricum
Bavaria The Bavarians emerged in a region north of the Alps, originally inhabited by the Celts, which had been part of the Roman provinces of Rhaetia and Noricum. The Bavarians spoke Old High German but, unlike other Germanic groups, did not migrate from elsewhere. Rather, they seem to have coalesced out of other groups left behind by Roman withdrawal late in the 5th century AD. These peoples may have included Marcomanni, Thuringians, Goths, Rugians, Heruli, and some remaining Romans. The name "Bavarian" ("Baiuvari") means "Men of Baia" which may indicate Bohemia, the homeland of the Marcomanni. They first appear in written sources circa 520. Saint Boniface completed the people's conversion to Christianity in the early 8th century. Bavaria was, for the most part, unaffected by the Protestant Reformation, and even today, most of it is strongly Roman Catholic. From about 550 to 788, the house of Agilolfing ruled the duchy of Bavaria, ending with Tassilo III who was deposed by Charlemagne. Three early dukes are named in Frankish sources: Garibald I may have been appointed to the office by the Merovingian kings and married the Lombard princess Walderada when the church forbade her to King Chlothar I in 555. Their daughter, Theodelinde, became Queen of the Lombards in northern Italy and Garibald was forced to flee to her when he fell out with his Frankish over- lords. Garibald's successor, Tassilo I, tried unsuccessfully to hold the eastern frontier against the expansion of Slavs and Avars around 600. Tassilo's son Garibald II seems to have achieved a balance of power between 610 and 616. -
Money Centre No 20 in Memory of Sławomir S
ISSN 2658-2066 Money Centre No 20 in memory of Sławomir S. Skrzypek 2019 Q4 2019 – The Year of the Vasas A 10-ducat (portugal) gold coin – Sigismund Vasa – the “Numismatist’s Study” room at the NBP Money Centre Plan of the NBP LEVEL 3 14 12 Stock Exchange Money Centre and Financial Markets 13 Modern Payment 13 Systems 14 Monetary and Economic 12 Unions Creator of Money 15 and Money Production 16 Money in Art 5 3 15 Toilets 4 6 LEVEL 2 C 16 Encounters 1 with Money 9 Stairway to room 7 and 8 Antiquity-Middle Ages 1 10 2 -Modernity 11 3 Monetary Systems 2 4 Bank Street 2 5 Central Bank Numismatist's 3 8 6 Study 7 9 World Wars I and II Polish People's 10 Republic 11 Fall of Communism B 1 LEVEL 1 Laboratory 7 of Authenticity 8 Vault B Toilets ENTRANCE A 0 LEVEL 0 Reception desk Visit our website: www.nbp.pl/centrumpieniadza Magazine of the Sławomir S. Skrzypek NBP Money Centre Dear readers, The main theme of this edition of “Bankoteka” is coins to the kings from this dynasty, issued in contemporary minted during the reign of the Vasa dynasty as well times by Narodowy Bank Polski (the Exhibits section). as NBP collector coins dedicated to the kings from this dynasty. In the same section we also discuss the new acquisi- tions that will be added to the collection of exhibits The year 2019 marks the passage of 400 years since at the NBP Money Centre. The half-grivna (from the the expansion of the Royal Castle in Warsaw, under- turn of the 13th and 14th century), a pendant repre- taken on the orders of King Sigismund Vasa. -
Germany and the Coming of the French Wars of Religion: Confession, Identity, and Transnational Relations
Germany and the Coming of the French Wars of Religion: Confession, Identity, and Transnational Relations Jonas A. M. van Tol Doctor of Philosophy University of York History February 2016 Abstract From its inception, the French Wars of Religion was a European phenomenon. The internationality of the conflict is most clearly illustrated by the Protestant princes who engaged militarily in France between 1567 and 1569. Due to the historiographical convention of approaching the French Wars of Religion as a national event, studied almost entirely separate from the history of the German Reformation, its transnational dimension has largely been ignored or misinterpreted. Using ten German Protestant princes as a case study, this thesis investigates the variety of factors that shaped German understandings of the French Wars of Religion and by extension German involvement in France. The princes’ rich and international network of correspondence together with the many German-language pamphlets about the Wars in France provide an insight into the ways in which the conflict was explained, debated, and interpreted. Applying a transnational interpretive framework, this thesis unravels the complex interplay between the personal, local, national, and international influences that together formed an individual’s understanding of the Wars of Religion. These interpretations were rooted in the longstanding personal and cultural connections between France and the Rhineland and strongly influenced by French diplomacy and propaganda. Moreover, they were conditioned by one’s precise position in a number of key religious debates, most notably the question of Lutheran-Reformed relations. These understandings changed as a result of a number pivotal European events that took place in 1566 and 1567 and the conspiracy theories they inspired. -
Type Classification of Diamonds
THE “TYPE” CLASSIFICATION SYSTEM OF DIAMONDS AND ITS IMPORTANCE IN GEMOLOGY Christopher M. Breeding and James E. Shigley Diamond “type” is a concept that is frequently mentioned in the gemological literature, but its rel- evance to the practicing gemologist is rarely discussed. Diamonds are broadly divided into two types (I and II) based on the presence or absence of nitrogen impurities, and further subdivided according to the arrangement of nitrogen atoms (isolated or aggregated) and the occurrence of boron impurities. Diamond type is directly related to color and the lattice defects that are modi- fied by treatments to change color. Knowledge of type allows gemologists to better evaluate if a diamond might be treated or synthetic, and whether it should be sent to a laboratory for testing. Scientists determine type using expensive FTIR instruments, but many simple gemological tools (e.g., a microscope, spectroscope, UV lamp) can give strong indications of diamond type. emologists have dedicated much time and critical to evaluating the relationships between dia- attention to separating natural from syn- mond growth, color (e.g., figure 1), and response to G thetic diamonds, and natural-color from laboratory treatments. With the increasing availabili- treated-color diamonds. Initially, these determina- ty of treated and synthetic diamonds in the market- tions were based on systematic observations made place, gemologists will benefit from a more complete using standard gemological tools such as a micro- understanding of diamond type and of the value this scope, desk-model (or handheld) spectroscope, and information holds for diamond identification. ultraviolet (UV) lamps. While these tools remain Considerable scientific work has been done on valuable to the trained gemologist, recent advances this topic, although citing every reference is beyond in synthetic diamond growth, as well as irradiation the scope of this article (see, e.g., Robertson et al., and high-pressure, high-temperature (HPHT) treat- 1934, 1936; and Kaiser and Bond, 1959).