Peridot Gemstones,Sell with a Story: Rubellite Tourmaline

Total Page:16

File Type:pdf, Size:1020Kb

Peridot Gemstones,Sell with a Story: Rubellite Tourmaline Sell With a Story: Peridot Gemstones In ancient Egypt, Peridot gemstones were called “gems of the sun,” referring to the golden glow that emanates from within. This glow imparts a rich yellowish-green hue — particularly appropriate for August birthdays and summer wear when the sun shines and crops near harvest. Now reach beyond birthstones to fashion where green has grown increasingly popular. It’s no wonder why Peridot gemstones enjoy such wide appeal. Shop Peridot Gemstones on Stuller.com Stay in the Shades Most people associate Peridot gemstones with their lighter pistachio shades. These are beautiful and quite plentiful. Still, the finest Peridot has a darker more radiant green with a hint of gold. But until 1990, this shade had grown rare. It is in this lush hue that you see Peridot’s true splendor. Peak Solution So what happened in 1990? Imagine the inhospitable mountains of Pakistan near the Afghanistan border. Not exactly high on your vacation list? I thought so. Yet, there on a 13,120-foot pass, a huge gem-quality Peridot deposit was discovered. Fortunately for all of us, the quality of these Pakistan Peridot gemstones were the finest ever seen. With incomparable color and transparency, they took the market by storm. Better still, the deposit is large enough to sustain Peridot demand for a long time. About that Green Myanmar, China, Africa, Australia, and the USA all have Peridot deposits. Peridot gemstones from each region have a particular hue, depending on the amount of iron in the soil. Peridot from Myanmar has a vivid light green with fine inclusions, while American Peridot found in Arizona has a golden-brown hue. Peridot gemstones from Pakistan have very fine traces of iron, resulting in a rich, vibrant green color. You’ll find that shade in our Black Box Gemstones® collection. 86701 • 14K White Gold Peridot 71973 • 14K Yellow Gold Ear Climbers Peridot Diamond Stackable Ring Some Enchanted Evening The Egyptians called Peridot “Evening Emerald.” They would know. Egypt is home to the most ancient Emerald and Peridot gemstone mines. But why Evening Emerald? Well, it was green like emerald and they believed its inner fire made it more visible at night — and that was when it was mined. In Another Light Peridot is one of the few gemstones that looks the same in different lights: sunlight, candlelight, and artificial. Mistaken Identity Circa 2000 BCE, the Egyptians first mined Peridot on a barren rocky island in the Red Sea. Today, we call it St. John’s Island, but millennia ago it was called Topazios. Other gems were mined on this island, too, and they were all called Topaz after the island. Only much later did Peridot receive its distinctive name, which is thought to originate from the Arabic word faridat, meaning “unique” or “precious gem.” Others believe it came from the Old French word,peritot. Deep Down and Far Away Fine Peridot gemstones form over millions of years deep within the earth — 20 to 55 miles deep — in the Earth’s upper mantle. Diamond is the only precious stone that forms deeper than that. Peridot only comes to the surface through volcanic eruption or tectonic force. So naturally, we find it near volcanoes and in mountainous regions where tectonic plates have clashed and risen. There is another truly rare form of Peridot. It came to the earth in a meteorite traveling across vast reaches of the universe. Because these crystals are 4.5 billion years old, they have scientific value far beyond gems used in jewelry. Tears of Fire Volcanoes formed the Hawaiian Islands, and there are still two active volcanoes on Hawaii Island, the destination of most tourists. Ancient Hawaiian folklore associated the goddess Pele with fire, lightning, and, you guessed it — volcanoes. Ancient Hawaiians believed that Peridot was Pele’s hardened tears, a goddess’ generous gift to her beloved people. If You Can’t Take the Heat . Peridot has a very, very high melting point. How high? It can withstand the intense heat inside a volcano, not to mention the intense heart of the Earth’s mantle. Crush it. Drink it. To get close to nature, follow the regimen of the ancient Egyptian priests of Isis, the goddess of rebirth and rejuvenation. The priests crushed Peridot gemstones into a fine powder then brewed it to create a strong beverage. To enhance their unity with nature, they drank this prior to ceremonies. It doesn’t sound like a great idea to me. I just can’t imagine crushing the stones, let alone drinking them. Bearing Gifts The crusaders returned from their wars in Palestine with gifts of fine Peridot from Topazios. They believed these beautiful green stones were emeralds and many were donated to European churches as such. The 200-ct gems in Cologne Cathedral in Germany provide a key example. Much later they were discovered to be fine Peridot. Shop Peridot and other green gemstones on Stuller.com How popular is peridot in your store? Tell us in the comments section. Sell With a Story: Rubellite Tourmaline With a name like rubellite, you can be pretty sure it’s a) red and b) probably connected to ruby. You’re absolutely right. Rubellite is a red tourmaline with a stunningly intense color similar to ruby. And they share a common Latin root: ruber or rubellus meaning either reddish brown or reddish violet. The most valuable stones are reddish violet in hue. Why Rubellite? I was going to write about jade for August. As luck would have it, Gary Venable, Senior Gemstone Product Manager, told me we are now carrying gorgeous rubellite from Nigeria in our Black Box Gemstones® collection. Well, I have a weakness for rich red stones set in yellow gold so I wanted to see it. It was love at first sight, with six shapes to choose. I decided to postpone jade for another month. I wanted to know more about this vibrant red tourmaline. Rubellite Tourmaline Crystal Photo Credit: GIA® Not surprisingly . From Greek and Roman times, rubellite was mistaken for ruby. During this long historic period, blue tourmaline and green tourmaline were similarly mistaken for sapphire and emerald. But in the 19th century, it was identified as different from ruby. And it had a crystal structure similar to other minerals called tourmaline. A very large ruby In 1786, King Gustav III of Sweden gave the Russian Empress Catherine the Great a 250-carat ruby that became part of the Russia’s Crown Jewels. In 1926, it was discovered to be a large rubellite. Seeing double Rubellite is a doubly refractive gemstone and it’s pronouncedly pleochroic — so much so, that it is the most dichroic of the known gemstones. This means that every crystal has two colors (primary and secondary), the intensity of which depends on the angle of observation. When cut and polished, this gemstone typically displays primary pure reds with secondary purples or pinks. Primary reds with secondary purples constitute the majority of rubellites and define this beautiful gemstone — the more pure the red, the more costly the gem. Red or pink? Throw some light on it — any light 71858 Rubellite has the extraordinary good fortune to shine just as intensely in artificial light as it does in daylight. Not only is this beautiful, it’s useful information. Many websites sell a reddish pink tourmaline as rubellite. In fact sometimes they call it “Pink Rubellite Tourmaline.” If you hold this under artificial light, you’ll note a clearly visible hint of brown that identifies it as pink tourmaline. Electrifying Rub or heat this gemstone and you will discover it has an electric charge. One end of the axis is positive and the other is negative letting it attract dust or bits of paper. In the 18th century when the Dutch East India Trading Company brought rubellite from Ceylon (Sri Lanka) to Europe, they used this pyroelectric effect to remove ash from their large Meerschaum pipes. Question of clarity Like emerald, rubellite typically grows with many inclusions and most rubellite has visible inclusions.* Fortunately for us all, Nigeria has produced beautiful eye clean rubellite. This is the source of the rubellite in our Black Box Gemstones. Why does Nigeria consistently produce fine quality? We’ll have to study geology, mineralogy, and possibly chemistry to get some idea. For myself, it’s enough just knowing it’s an excellent source. *It’s interesting to note that certain inclusions are of great interest to collectors who will pay top dollar for them. The bigger, the better Right now, eye clean rubellites up to six carats are fairly readily available. But eye clean stones of excellent color over 15 carats are rare and much sought after. More than a gorgeous stone Are you ready to have rubellite power change your life? Its abilities are quite sensational and I can certainly see customers wanting some of these gifts. 71868 Its opening act is hard to beat. According to lore, it can heal the heart physically if you have a heart ailment, emotionally if you are broken-hearted, and spiritually, by promoting loving awareness of life and an open heart. Guess what? It can do far more. Rubellite can also — Bring you prosperity and abundance. Enhance vitality with a positive nurturing energy. Treat disorders of the lungs, liver, and digestive system. Strengthen circulation. Impart calm and balance. Dispel negative energy. Introduce customers to this life-changing stone..
Recommended publications
  • Palomar Gem & Mineral Club Newsletter
    Palomar Gem & Mineral Club Newsletter August 2016 Volume 57 Issue 07 PGMC Annual Picnic We had our annual summer picnic last month at Jesmond Dene Park. As always Moni did a fine job of coordinating the event which included great food brought by everyone as well as a good time of comparing the fine rocks and gems we have found. We had a great slab swap between our members and everyone seemed to have a good time. As summer ends and we get ready to ramp up again, we hope everyone had a safe and productive summer. August is usually a down month for PGMC so that any specialty classes can take place at the shop and folks can go on vacation. We look forward to seeing everyone at the September meeting. Check out the rest of the newsletter for more information about September’s meeting as well as upcoming class schedules. We begin classes this week! 1 Textured Metal Class Come and join in the fun, learning to texture metal and make one-of-kind earrings (3 to 4 pairs) or a bracelet). They are great gifts. You may also learn how to make your own ear wires. Instructors: Diane Hall & Annie Heffner Location: Club Shop Dates: November 20, 2016 Time: 10am-4pm Fee: $35 plus supply cost (club membership required - $25 fee for single membership). You will need about 1 ounce of silver or copper sheet, which we will purchase for every one who is signed up by November 11th. Sign ups after that will need to provide their own material.
    [Show full text]
  • The Red Emerald
    The Red Emerald Black Album Words by Seth William Rozendaal Photos by David Rozendaal This work is for the enjoyment of gemstone aficionados around the world and throughout time, and dedicated to the divine muse who inspires everything. This book celebrates the Red Emerald’s public debut at the 2017 Tucson Gem and Mineral Show. Graphics taken from the Mineralogical Record Volume 47 Number 1: Colombian Emeralds where noted. The two photos of the Heart matrix specimen on the top of the page in Section VI were taken by Wayne Schrimp. Seth Rozendaal is responsible for the landscape photo in Section II, the beveled heart in Section VI and Office Suite Graphics. The Suite Treasure necklace photo in Section XIII was taken at the Brent Isenberger Studio. Cover and all other interior photos in this album were taken by David Rozendaal. Without his tireless dedication, this publication would not have been possible. For additional information, please contact: Seth William Rozendaal (515) 868-7207 [email protected] Index I - Red Beryl IS Red Emerald II - Formation III - Matrix Specimens IV - Wafers V - Prisms VI - Twins VII - Clusters VIII - Bixbyite Combinations IX - Topaz Combinations X - Hourglass Patterning XI - The Scarlet Spectrum XII - Facet-Grade Red Emerald XIII - The Red Emerald Suite Treasure I ~ Red Beryl IS Red Emerald The human infatuation with Emeralds runs so deep, and our desire for them traces so far back… It's one of the only gemstones found in rank-signifying Neolithic headdresses. Yeah, you heard me: Caveman Crowns. Aja Raden - Author, Historian and Scientist Diamonds may be forever, but only Emeralds are eternal; our appreciation of Emeralds stretches from the beginning of human civilization to the very end.
    [Show full text]
  • The Wittelsbach-Graff and Hope Diamonds: Not Cut from the Same Rough
    THE WITTELSBACH-GRAFF AND HOPE DIAMONDS: NOT CUT FROM THE SAME ROUGH Eloïse Gaillou, Wuyi Wang, Jeffrey E. Post, John M. King, James E. Butler, Alan T. Collins, and Thomas M. Moses Two historic blue diamonds, the Hope and the Wittelsbach-Graff, appeared together for the first time at the Smithsonian Institution in 2010. Both diamonds were apparently purchased in India in the 17th century and later belonged to European royalty. In addition to the parallels in their histo- ries, their comparable color and bright, long-lasting orange-red phosphorescence have led to speculation that these two diamonds might have come from the same piece of rough. Although the diamonds are similar spectroscopically, their dislocation patterns observed with the DiamondView differ in scale and texture, and they do not show the same internal strain features. The results indicate that the two diamonds did not originate from the same crystal, though they likely experienced similar geologic histories. he earliest records of the famous Hope and Adornment (Toison d’Or de la Parure de Couleur) in Wittelsbach-Graff diamonds (figure 1) show 1749, but was stolen in 1792 during the French T them in the possession of prominent Revolution. Twenty years later, a 45.52 ct blue dia- European royal families in the mid-17th century. mond appeared for sale in London and eventually They were undoubtedly mined in India, the world’s became part of the collection of Henry Philip Hope. only commercial source of diamonds at that time. Recent computer modeling studies have established The original ancestor of the Hope diamond was that the Hope diamond was cut from the French an approximately 115 ct stone (the Tavernier Blue) Blue, presumably to disguise its identity after the that Jean-Baptiste Tavernier sold to Louis XIV of theft (Attaway, 2005; Farges et al., 2009; Sucher et France in 1668.
    [Show full text]
  • Intergrown Emerald Specimen from Chivor Tity Was Confirmed by Raman Spectroscopy
    Editor Nathan Renfro Contributing Editors Elise A. Skalwold and John I. Koivula Intergrown Emerald Specimen from Chivor tity was confirmed by Raman spectroscopy. The inclusion exhibited a well-formed hexagonal prismatic shape with Colombia’s Chivor emerald mines are located in the east- pyramid-like termination (figure 2). Although intergrowth ern zone of the Eastern Cordillera range of the Andes emerald crystals have been described and documented in Mountains. Chivor translates to “green and rich land” in the literature several times (G. Grundmann and G. Giu- Chibcha, the language of the indigenous people who were liani, “Emeralds of the world,” in G. Giuliani et al., Eds., already mining emerald more than 500 years ago, before Emeralds of the World, extraLapis English, No. 2, 2002, pp. the arrival of the Spanish conquistadors (D. Fortaleché et al., “The Colombian emerald industry: Winds of change,” Fall 2017 G&G, pp. 332–358). Chivor emeralds exhibit a bright green color with a tint of blue; they have relatively Figure 1. An emerald crystal inclusion measuring high clarity and fewer inclusions than emeralds found in ~2.67 × 2.71 × 5.43 mm is found inside this large Colombia’s western belt. emerald specimen (18.35 × 10.69 × 9.79 mm) from Colombia’s Chivor mine. Photo by John Jairo Zamora. The authors recently examined a rough emerald crystal specimen (figure 1), measuring 18.35 × 10.69 × 9.79 mm, reportedly from Chivor. This crystal weighed 3.22 g (16.10 ct) and had a prismatic hexagonal crystal shape. Standard gemological examination confirmed the gemstone to be emerald, and ultraviolet/visible/near-infrared (UV-Vis-NIR) spectroscopy showed a classic Colombian emerald absorp- tion spectrum.
    [Show full text]
  • Garnet, Industrial 2016
    2016 Minerals Yearbook GARNET, INDUSTRIAL [ADVANCE RELEASE] U.S. Department of the Interior September 2018 U.S. Geological Survey Garnet, Industrial By Robert M. Callaghan and Kenneth C. Curry Domestic survey data and table were prepared by Chanda C. Williams, statistical assistant. In 2016, U.S. production of crude garnet concentrate for combination with one or two other minerals, have reserves that industrial use was estimated to be 56,400 metric tons (t) valued can be mined at a low cost, and have the ability to react rapidly at about $12.8 million, a slight increase in tonnage and virtually to changes in market demand. The value of industrial garnet is unchanged in value from 55,200 t valued at $12.7 million in 2015. influenced by the size and grade of reserves, the type and quality U.S. production of refined garnet in 2016 was estimated to be of garnet mined, the proximity of deposits to infrastructure and 49,400 t valued at $24.4 million, a slight increase in tonnage and consumers, and the milling costs. The majority of industrial- a slight decrease in value from 48,700 t valued at $24.8 million grade garnet mined in the United States consists of almandine in 2015. U.S. exports of industrial garnet were 13,400 t, a 9% (iron-aluminum silicate) and pyrope (magnesium-aluminum decrease compared with those in 2015. Imports of garnet were silicate), although some andradite (calcium-iron silicate) also is estimated to be 150,000 t in 2016, a 38% decrease compared with mined domestically.
    [Show full text]
  • Compilation of Reported Sapphire Occurrences in Montana
    Report of Investigation 23 Compilation of Reported Sapphire Occurrences in Montana Richard B. Berg 2015 Cover photo by Richard Berg. Sapphires (very pale green and colorless) concentrated by panning. The small red grains are garnets, commonly found with sapphires in western Montana, and the black sand is mainly magnetite. Compilation of Reported Sapphire Occurrences, RI 23 Compilation of Reported Sapphire Occurrences in Montana Richard B. Berg Montana Bureau of Mines and Geology MBMG Report of Investigation 23 2015 i Compilation of Reported Sapphire Occurrences, RI 23 TABLE OF CONTENTS Introduction ............................................................................................................................1 Descriptions of Occurrences ..................................................................................................7 Selected Bibliography of Articles on Montana Sapphires ................................................... 75 General Montana ............................................................................................................75 Yogo ................................................................................................................................ 75 Southwestern Montana Alluvial Deposits........................................................................ 76 Specifi cally Rock Creek sapphire district ........................................................................ 76 Specifi cally Dry Cottonwood Creek deposit and the Butte area ....................................
    [Show full text]
  • Diamonds & Emeralds & Rubies, Oh My: Gem Lore in Baum's Wonderful
    Diamonds and Emeralds and Rubies, Oh My: Gem Lore in Baum's The Wonderful World of Oz From the ruby-studded land of the Quadlings to ubiquitous references to glittering emeralds and diamonds, gemstones play a crucial role in Baum’s iconic Wonderful World of Oz. For over a century, critics have focused primarily on biographical and allegorical explanations for the choices of specific gems and metals without thoroughly exploring other possibilities. Instead, a bimetallic discourse on gold and silver introduced in the 1960s has been accepted as fact by academics and readers alike, as have gem choices linked to everything from Baum’s birthstone and Irish roots to Chicago’s Crystal Palace. I propose to take a new, archetypal approach, arguing, by contrast, that the selection of emerald (rather than, for example, topaz) as the featured gemstone links Oz to centuries of mythology. An examination of alchemy and its cultural influences, as well as Baum’s undisputed belief in Theosophy, furnish additional connections. Thus in nearly all ancient and sacred thought, esoteric gem lore has traditionally played integral roles in life and religious beliefs. A connection between emeralds and vision, for example, is associated with the Emperor Nero, Apostle John, Pliny the Elder, and even Napoleon. Moreover, this connection between the emerald and the human eye, which plays such a prominent role as the Emerald City where everyone must wear locked-on green goggles, has its roots in the Hindu Vedas, Sanskrit mantras, the Koran, and Judeo-Christian beliefs. This substantial precedent is echoed in the history of ruby lore and the connection of the red stone to female rulers who possess ruby thrones and a ruby-encircled cap (Glinda) to a ruby palace (Gaylette).
    [Show full text]
  • A Survey of the Gemstone Resources of China
    A SURVEY OF THE GEMSTONE RESOURCES OF CHINA By Peter C. Keller and Wang Fuquan The People's Republic of China has recently hina has historically been a land of great mystery, placed a high priority on identifying and C with natural resources and cultural treasures that, developing its gemstone resources. Initial until recently, were almost entirely hidden from the out- exploration by teams of geologists side world. From the point of view of the geologist and throughout China has identified many gemologist, one could only look at known geological maps deposits with significant potential, of this huge country and speculate on the potential impact including amher, cinnabar, garnets, blue sapphires, and diamonds. Small amounts of China would have on the world's gem markets if its gem ruby have' qlso been found. Major deposits resources were ever developed to their full potential. of nephriteyade as well as large numbers of During the past few years, the government of the Peo- gem-bearing pegmatite dilces have been ple's Republic of China (P.R.C.)has opened its doors to the identified.Significant deposits of peridot outside world in a quest for information and a desire for are crirrently being exploited from Hebei scientific and cultural cooperation. It was in this spirit of Province. Lastly, turqrloise rivaling the cooperation that a week-long series of lectures on gem- finest Persian material has been found in stones and their origins was presented by the senior author large quantities in Hubei and Shaanxi and a colleague to over 100 geologists from all over China Provinces.
    [Show full text]
  • 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.
    [Show full text]
  • The Crown Jewel of Divinity : Examining How a Coronation Crown Transforms the Virgin Into the Queen
    Sotheby's Institute of Art Digital Commons @ SIA MA Theses Student Scholarship and Creative Work 2020 The Crown Jewel of Divinity : Examining how a coronation crown transforms the virgin into the queen Sara Sims Wilbanks Sotheby's Institute of Art Follow this and additional works at: https://digitalcommons.sia.edu/stu_theses Part of the Ancient, Medieval, Renaissance and Baroque Art and Architecture Commons Recommended Citation Wilbanks, Sara Sims, "The Crown Jewel of Divinity : Examining how a coronation crown transforms the virgin into the queen" (2020). MA Theses. 63. https://digitalcommons.sia.edu/stu_theses/63 This Thesis - Open Access is brought to you for free and open access by the Student Scholarship and Creative Work at Digital Commons @ SIA. It has been accepted for inclusion in MA Theses by an authorized administrator of Digital Commons @ SIA. For more information, please contact [email protected]. The Crown Jewel of Divinity: Examining How A Coronation Crown Transforms The Virgin into The Queen By Sara Sims Wilbanks A thesis submitted in conformity with the requirements for the Master’s Degree in Fine and Decorative Art & Design Sotheby’s Institute of Art 2020 12,572 words The Crown Jewel of Divinity: Examining How A Coronation Crown Transforms The Virgin into The Queen By: Sara Sims Wilbanks Inspired by Italian, religious images from the 15th and 16th centuries of the Coronation of the Virgin, this thesis will attempt to dissect the numerous depictions of crowns amongst the perspectives of formal analysis, iconography, and theology in order to deduce how this piece of jewelry impacts the religious status of the Virgin Mary.
    [Show full text]
  • Misuse Ofthe Words "Ruby," "Sapphire," "Emerald," "Topaz," "Stone," "Birthstone," "Gem," "Gemstone," Etc
    AG~ Accrrditrd Grmologists Association 33 15 Juitnila St.. San Diego. C/\ 92105 May 31,2016 Secretary Donald S. Clark Federal Trade Commission Office of the Secretary 600 Pennsylvania Avenue, NW, Suite CC-5610 (Annex-O) Washington, DC 20580 RE: Jewelry Guides, 16 CFR, Part 23, Project No. G7110001 Dear Secretary Clark: This following recommendations are being submitted by the Accredited Gemologists Association (AGA) in response to the request for additional public comments regarding the proposed revisions to the Guides for Jewelry, Precious Metals and Pewter. First, we applaud the commission's work on preparing this much-needed revision to address the many changes in the gem and jewelry field since the last updates were made. We also appreciate your giving us another opportunity to review your draft for the revisions and provide additional comments to this draft before they are finalized. Specifically, these comments will focus on Note 23.25: Misuse ofthe words "ruby, " "sapphire/' "emerald," "topaz," "stone," "birthstone," "gem," "gemstone," etc.; and Note 23.12: "Definition and misuse ofthe word "cultured diamond." Note 23:25: Misuse ofthe words "ruby," "sapphire," "emerald," "topaz," "stone," "birthstone," "gem," "gemstone," etc: As the FTC has already acknowledged in its proposed revisions, the practice of mixing lead­ glass with non-gem grade corundum to create products that look like transparent and semi­ transparent "rubies," "blue sapphires" and "fancy color sapphires" and selling them as treated gems, at highly inflated prices,
    [Show full text]
  • Spring 1995 Gems & Gemology
    TABLE CONTENTS FEATURE ARTICLES 2 Rubies from Mong Hsu Adolf Pelsetti, I(ar7 Schmetzer, Heinz-Jiirgen Bernhardt, and Fred Mouawad " 28 The Yogo Sapphire Deposit Keith A. ~~chaluk NOTES AND NEW TECHNIQUES 42 Meerschaum from Eskisehir Province, Turkey I<adir Sariiz and Islcender Isilc REGULAR FEATURES 52 Gem Trade Lab Notes Gem News Most Valuable Article Award Gems ed Gemology Challenge Book Reviews Gemological Abstracts Guidelines for Authors ABOUT THE COVER: One of the most important ruby localities of the 1990s cov- ers a broad orea near the town of Mong Hsu, in northeastern Myann~ar(B~lrrna). The distinctive gemological features of these rubies are detailed in this issue's lead article. The suite of fine jewelry illustraled here contains 36 Mong Hsu rubies with a total weigh1 of 65.90 ct; the two rubies in the ring total 5.23 ct. jewelry courtesy of Mouawad jewellers. Photo by Opass Sultsumboon-Opass Suksuniboon Studio, Bangltolz, Thailand. Typesetting for Gerrls eS Gemology is by Graphix Express, Santa Monica, CA. Color separations are by Effective Graphics, Compton, CA. Printing is by Cadmus lournal Services, Easton, MD. 0 1995 Gemological Institute of America All rights reserved ISSN 0016-626X - Editor-in-Chief Editor Editors, Gem Trade Lab Notes Richard T. Lidtlicoat Alicc S. I<cller Robcrt C. I<ammerling 1660 Stewart St. C. W. Fryer Associate Editors Smta Mon~ca,CA 90404 William E. Boyajian Editors, Gem News (800)421-7250 ~251 Robcrt C. Kamn~erling Rohcrt C. I<ammerling e-mail: altellcrBclass.org D. Vincent Manson John I. Koivula John Sinltanltas Sr~bscriptions Enirnanuel Fritsch Jln Ll~n Editors, Book llevielvs Technical Editor (800) 421-7250 x201 Susan B.
    [Show full text]