 | | Journal (article/letter/editorial) | | TOPAZ A âą MINERALOGICAL âą REVIEW Downloaded by [New York University] at 21:04 11 May 2015 Coveted...specimens from the National Museum of Natural History TOPAZ IS THE STATE GEM of Texas and Utah; however, it...the "big three" (emerald, sapphire, and ruby), topaz is nevertheless regarded as an important and prized...attributes is that, unlike many other gem minerals, topaz may occur in crystals large enough to cut giant...giant gemstones. Gems such as the Champagne Topaz (36,853 carats), the American Golden (22,875 carats), and |  | | Journal (issue) | | Bochum, W. Germany Eric Offermann Arlesheim, Switzerland Harold and Erica Van Pelt Los Angeles, CA Julius...Richards Famous mineral localities: the Ouro Preto topaz mines ............................................new species of minerals, F-OH substitutions in topaz, amphiboles and tourmaline. X-rays were required...INTRODUCTION Brazil is world famous for its several occurrences of outstandingly large hydroxylherderite crystals...quality and are highly prized by collectors. These occurrences, all in Minas Gerais, are described below along |  | | Journal (issue) | | TOPAZ, I J.INERALOGICAL RECORD JANUARY-FEBRUARY 1995 âą VOLUME 26 NUMBER 1 âą $10 Wayne & Dona Leicht...Heidelberg, W. Germany Eric Offermann Arlesheim, Switzerland Jeffrey A. Scovil Phoenix, AZ Harold and Erica......................... 5 by M. A. Menzies Pink topaz from the Thomas Range, Juab County, U ta h .......Lichte & P. H. Briggs FM-TGMS-MSA Symposium on topaz...................................................Columns Notes from the editor by W. E. Wilson TOPAZ, COVER: TOPAZ crystals to 4 cm, on matrix, from Ghundao |  | Van Alstine, R. E., Worl, R.G., Heyl, A.V., Trace, R.D., Parker, R.L., Griffitts, W.R., Sainsbury, C.L., Cathcart, J.B. (1976) Geology and resources of fluorine in the United States. Professional Paper 933. US Geological Survey doi:10.3133/pp933 | Report (issue) | | deposits and occurrences.......................... Fluorine in topaz deposits and occurrences.............and districts and important types of fluorine occurrences................................ Alaska, by C...and districts and important types of fluorine occurrences-Continued Colorado-New Mexico-western Texas-southeastern....... 10. Locations of major topaz deposits, topaz occurrences, and topaz-bearing rhyolites in the United...26. Map showing major structural features in the region surrounding the Illinois-Kentucky fluorspar district |  | | Journal (issue) | | Schubiger, Lore Kiefert, and Sabine HĂ€berli 114 Topaz, Aquamarine, and Other Beryls from Klein Spitzkoppe...Fritsch Nantes, France Robert E. Kane Lucerne, Switzerland Kenneth Scarratt Bangkok, Thailand C. W. Fryer...Petershausen, Germany Henry A. HĂ€nni Basel, Switzerland A. A. Levinson Calgary, Alberta, Canada James...REPRINT PERMISSIONS Christopher P. Smith Lucerne, Switzerland Subscriptions to addresses in the U.S.A. are...Mn, Be; Jegdalek, Afghanistanâ Si, Fe, Be; Umba Valley, TanzaniaâFe, Si, Ti, Cr, V, Mn; Morogoro, TanzaniaâTi |  | | Book | | are those of the gold mines in the Witwatersrand region, near Johannesburg in South Mrica, which descend...discovery of the placer deposits in the Sacramento Valley in California led to the famous gold rush in 1849...1849, as did the discoveries in the Klondike region, Yukon River, Alaska. Only 2 years later, in 1851...films copper transmits green light. The major occurrences of native copper are copper-rich ores, especially...especially those of bornite, which formed in the region between the oxidation and reduction zones, e. g., |  | | Report (issue) | | No. 14: Topaz Perfect Cleavage ISBN 978-0-9790998-9-2 Publisher Lithographie, LLC Denver, Colorado...United States of America Photo Credits Cover: Topaz, 3.5 cm tall Capao Mine, Ouro Preto, Minas Gerais...Sigerman collection Robert Weldon photo Above: Topaz, 5.5 cm tall El Chalten, Santa Cruz, Argentina Scott...brooch/pendant is set with topaz from three different localities. Two Brazilian "Imperial" topaz gems make up the...the wings, totaling 19.59 carats, are light blue topaz. The wing tips are set with melee diamonds. The |  | | Book (edition) | | penny, some feldspar, a quartz crystal, and some topaz handy, you should be able to identify most minerals...chert, chalcedony, and jasper; streak plate Garnet Topaz Corundum Diamond Be a Safe and Considerate Collector...diorite. The New England states, the Rocky Mountain region, Arizona, California, and Washington are all good...quartz. Other minerals include quartz, tourmaline, topaz, mica, apatite, lepidolite, and monazite. There...sought for large crystals of quartz, smoky quartz, topaz, and other prizes. Famous pegmatite belts and outcrops |  | | Journal (issue) | | crystals upon quartz, from the SĂ€o Jose da Safira region. Sample is 130 mm long. Occasionally contrasting...freely transmitted except for a faint absorption region near 560 nm. There is a fairly strong and narrow...tourmalines show a broad absorption in the green region centred about 525 nm accompanied by a narrow band...tourmaline deposits in Minas GĂ©rais. In some occurrences the mica plates appear as if they were plastered...SuaçuĂź to the southwest (Figure 18). The whole region belongs to the 'Oriental pegmatitic province' of |  | | Journal (issue) | | Museum Toronto, Ontario Steven R. Morehead Green Valley, AZ Donald R. Peacor University of Michigan Ann...Heidelberg, W. Germany Eric Offermann Arlesheim, Switzerland Jeffrey A. Scovil Phoenix, AZ Harold and Erica... . . . . . . . . 275 by A. R. Kampf Zeolite occurrences in the Central Metasedimentary Belt of the Grenville...Record, volume 37, JulyâAugust, 2006 Zeolite Occurrences in the Central Metasedimentary Belt of the Grenville...modified from Price and Douglas (1972) and Peck and Valley (2000). staff in 1983. Over the next decade, approximately |  | | Journal (issue) | | Medenbach Bochum, Germany Eric Offermann Arlesheim, Switzerland photomicrography Julius Weber Mamaroneck, New...one gemstone. Superb and abundant sherry-brown topaz crystals and brilliant red beryl are the best known...Englemann probably made the first discovery of topaz in the area during an expedition in 1859 (Englemann...western Utah that produces these minerals. Similar occurrences have been known for many years in the Dugway...semi-arid climate and high elevation (1398-meter valley floors and 2128-meter mountain tops) gives the |  | | Book | | MB/ are a series of maps to give the mineral occurrences both a spatial and geological context, and some...reflection ofnot only the varied geology of the region but also a once-thriving minerals industry and..."British" species. A further 11 British first occurrences have since been recorded from specimens held...species to his increasing list of British first occurrences. What went unnoticed at the time was that the... so that the context of many of the mineral occurrences can be better understood. The accompanying figures |  | | Journal (article/letter/editorial) | | Volume 87, pages 445â453, 2002 Hydroxyl-rich topaz in high-pressure and ultrahigh-pressure kyanite...D.C. 20015-1305, U.S.A. ABSTRACT Hydroxyl-rich topaz was recognized in thick kyanite quartzites from...quartz, kyanite, and topaz, with minor phengite, pyrite, and rutile. Some topaz grains from the UHP belt...replaced by woodhouseite [CaAl3(PO4)(SO4)(OH)6]. Most topaz crystals contain 9.5 to 13.5 wt% F [0.92â1.30 atoms...occurring, hydroxyl-rich topaz has not been previously reported. Some topaz grains from the HP belt show |  | | Book | | Smale. Photograph taken by Jeff Scovil. Imperial topaz (130 x 35 mm), Antonio Pereira, Ouro Preto, Minas...375 The idiomorphic topaz 377 The superb beauty of the topaz 385 T he imperial topaz of Ouro Preto 393...393 The Mine of Capao do Lana 397 The imperial topaz of Antonio Pereira 398 The magical all ure of the cuclase...coverages: opal, xilopal, barite, silex, calcite, dolomite, phosphorite, gypsum, anhydrite, halite, silvite...Neoproterozoic and associated granites: beryl, tourmaline, topaz, garnet, ap:1tite and other phosphates, quartz, |  | | Book | | 2016936575 © Springer International Publishing Switzerland 2016 This work is subject to copyright. All rights...company is Springer International Publishing AG Switzerland Preface This book is the ïŹrst assembly of...the setting and origin of major deposits in the region, together with information on tonnages and grades...(7) banded iron formation (BIF), (8) Mississippi Valley-type (MVT) zinc-lead, (9) sediment-hosted stratiform...comparisons and contrasts with MVT deposits in the region. The last part is focused on sediment-hosted iron |  | | Journal (issue) | | Museum Toronto, Ontario Steven R. Morehead Green Valley, AZ Donald R. Peacor University of Michigan Ann...Heidelberg, W. Germany Eric Offermann Arlesheim, Switzerland Jeffrey A. Scovil Phoenix, AZ Harold and Erica...rau.ac.za Klein Spitzkoppe has been producing topaz crystals for over 100 years. Since the discovery...colorless, transparent, so-called âsilver topaz.â Most topaz specimens consist of loose crystals, but...spelling is the one used on the geological maps of the region. Spitz is German for âpeakâ and koppe refers to |  | | Book (volume) | | Hallelujah Junction, Nevada; blue, cushion cut topaz (25.30 ct), Ramona, California; brownish yellow...various places, especially in regard to diamond occurrences which promise to make the North American continent...certain other areas, as around the Great Lakes region. Numerous small discoveries of gem materials took...C. & Barbara T. Smith, Four Clover Mine, Castro Valley, CA; Lita R. Smith-Gharet, Steel Eagle, Tigard...Alvin A. Youngquist, Bergsten Jade Co., Castro Valley, CA; June Culp Zeitner, Rapid City, SD. [also wish |  | | Journal (issue) | | .....................785 by W. E. Wilson Black topaz from the Thomas Range, Juab County, Utah ......... High in the mountain ranges of the Shigar Valley region of Pakistan, hundreds of mine tunnels pierce...Afghani and Pakistani minerals. He traveled to that region for minerals in the early 1970s (around the time...Freilich aquamarine, 13 cm, from Dassu, Shigar Valley, Pakistan. Now in a private collection; James Elliott...Sainte-Marie-auxMines Show in the amazing Alsace region of France. Marco is a bit of a genius: he is one |  | | Journal (issue) | | Museum Toronto, Ontario Steven R. Morehead Green Valley, AZ Donald R. Peacor University of Michigan Ann...Heidelberg, W. Germany Eric Offermann Arlesheim, Switzerland Jeffrey A. Scovil Phoenix, AZ Harold and Erica...secondary uranium minerals (especially from the Shaba region of the Democratic Republic of Congo). The scope...specimens on display here, from a huge imperial topaz weighing more than 2,000 carats to a 6.8-cm phosphophyllite...well maintained trail system in the Vindicator Valley, just north of Victor. The trail provides access |  | | Journal (issue) | | Museum Toronto, Ontario Steven R. Morehead Green Valley, AZ Donald R. Peacor University of Michigan Ann...Heidelberg, W. Germany Eric Offermann Arlesheim, Switzerland Jeffrey A. Scovil Phoenix, AZ Harold and Erica...FLUORITE on muscovite, 14 cm, from Nagar, Hunza Valley, Northern Areas, Pakistan. Wally Mann collection;...10/#5 Thomas & Wah Wah Ranges (Utah) (famous for Topaz, Red Beryl. etc) $12 v.11/#1 Toxic Minerals Barite...Issue! The only complete review of these famous occurrences $12 v.23/#5 Matlock (Eng.), Prenteg (Wales) | | | Book (volume) | | Hallelujah Junction, Nevada; blue, cushion cut topaz (25 .30 et), Ra1nona, Caufornia; brownish yellow...various places, especially in regard to diamond occurrences which pro1nise to make the North American continent...certain other areas, as around the Great Lakes region. Numerous s1nall discoveries of gem materials took...C. & Barbara T. Smith, Four Clover Mine, Castro Valley, CA; Lita R. Smitl1-Gharet, Steel Eagle, Tigard...Alvin A. Youngquist, Bergsten Jade Co., Castro Valley, CA; June Culp Zeitner, Rapid City, SD. I also |  | | Journal (issue) | | described.Aquamarine Aquamarine topaz occur in areas generdescribed. andand topaz occur in areas generally of...important important producer producer of aquamarine, topaz, tourmaline tourmaline and and sapphire. A A few...mentioned here because the aquamarine and topaz occurrences, described be- Fig. 2. Pits dug in eluvial...district, the aquamarine crystals, white to pale blue topaz and smoky quartz crystals occur in narrow stringers...eluvial, colluvial and alluvial aquamarine and topaz crystals on or near the surface, but the production |  | | Book | | A. Jobbins Butterworth-Heinemann Gem Books Topaz m(JTTERWORTH EINEMANN Butterworth-Heinemann Ltd...Library Cataloguing in Publication Data Hoover, D. B. Topaz. - (Butterworth-Heinemann Gem Books Series) I. Title...Profile xii 1 Topaz - Historical perspectives 1 Introduction 1 Etymology of topaz 1 Topaz in ancient times...times 3 Topaz in Roman times 8 The Dark Ages 12 The Middle Age~ - topaz changes colour The beginning of...of empiricism 15 13 2 Large and important topaz gems and crystals 20 Introduction 20 Giant uncut crystals |  | | Book | | and prepared road base Hastings Block Limestone Dolomite Nambucca Block Structural clay Dimension stone...aggregate Heavy mineral sands J. Hann Sapphire Topaz Diamond Quartz and silica gems Gravel Construction...Mineralised fractures and lineaments in the Taylors Arm region 93 Figwe 24. Munga Creek antimony district: geology...Mineralised fractures and lineaments in the Munga Creek region 95 Figure 26. Munga Creek antimony mine (deposit...comprehensive mineral deposit data base for the region, a modem recompilation of the geological data, |  | | Journal (issue) | | names too, those now long since lost.) Although the region may have had a short history of working, the endeavors...amethyst. Despite the demand for specimens, the region is remote and the landscape challenging. Over time...It exhibits all the most desired traits from the region, all in one specimenâa culmination of perfection...situated on the northern seacoast of the Asturias region of Spain. Figure 2. The Caravia-Berbes District...existence of fluorite in 18 the Berbes-Caravia region was made by Guillermo Schultz (1836), who observed |
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