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| Pty. Ltd. 26 Harries Road, Coorparoo, Qld. 4151 Australia © Copyright Len Cram 1994 © Photography and text...Opals, , tiful Lightning Ridge, Beautiful Queensland Opals, and Beautiful Opals of the Desert “ISBN...Black Opal. Contents Introduction 5 Opal History 7 Australian Opals 13 Australian Opal Geology...What is Opal? On the Trail 15 17 19 Let’s Go Hunting For Opal! 23 New South Wales Opal Fields Lightning...South Australian Opal Fields Coober Pedy Mintabie Andamooka 41 53 57 59 Queensland Opal Fields 61 |
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| 2014 Figure 2. Split pair of boulder opal from Quilpie, Queensland. Specimen is 4.5 × 3.5 cm. Museum Victoria...MINERALS Figure 3. Opal pseudomorph after gastropod from Coober Pedy, South Australia. Specimen is 1.5...photo. Figure 4. Example of superb precious black opal from Lightning Ridge, New South Wales. D. Barnes...South Wales Mineral Resources, photo. Australian Opal Resources Outback Spectral Fire Downloaded by [UQ...Gem Resources Australia Pty. Ltd. PO Box 300 Ourimbah, New South Wales 2258 Australia specover@bigpond |
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| Affiliated Association: GeIDD101ogical Association of Australia THE JOURNAL OF GEMMOLOGY A N D P R O C E E D...note on dichroic gems. " Daylight is best, b u t an opal covered light will answer, allowance being m a d...illus. R.W. GRIBB (H. G. S.). Opal deposits and the Hayricks opal mine. T h e Australian Gemmologist...from the Queensland Mining Journal of February, 1948). An introduction is given to the opal mining industry...industry in Queensland. T h e opal deposits are some 250 miles in width and some 550 miles long in Western |
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| ' • t IN COLO~ · AUSTRALIAN OPALS IN COLOUR Opal can be fairly stated to be Australia's national...reader through all the Australian opal fields, describes the types of opal 111ining, the lives of the miners...Andamooka, and on the Queensland opal fields. It also covers the scientific nature of opal and describes how...superb colour plates it display Australian opals and opal jewellery in al I their beauty: gives glin1pses...lapidary working of these precious getns. Every proud opal owner will want this book and all who read the book |
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| AfliIiated Association: Gelnlnological Association of Australia THE JOURNAL OF GEMMOLOGY A N D P R O C E E D...insurgent hands so that the author could not visit the mine personally. T h e mines are at T a w m a w in the...0-060. Stibiotantalite is also found in the Himalaya mine, San Diego, California. R.W. ZAVERI (G. K . ) ...Chiastolites from the Olary Province of South Australia. Australian Gemmologist, No. 6, p p . 5-9, J u...chiastolite variety of andalusite was first found in Australia in 1901. Specimens come from Bimbowrie, Alconie |
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| 480 La Trobe Street Melbourne, Victoria 3000, Australia Nelson Canada 1120 Birchmount Road Scarborough...Formed from Surface Water: 19 The Opals of Australia PART II Gemstones of Igneous-Hydrothermal Origin...129 The Diamond Deposits of Argvle, Western Australia Index 141 FOREWORD Each gem deposit-whether...agency of surlace waters, focusing on the opal deposits of Australia. Part II of this book is devoted to those... Egypt and the new find at Argyle in Western Australia are used as examples. It is worth noting that |
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| 480 La Trobe Street Melbourne, Victoria 3000, Australia Nelson Canada 1120 Birchmount Road Scarborough...Formed from Surface Water: 19 The Opals of Australia PART II Gemstones of Igneous-Hydrothermal Origin...129 The Diamond Deposits of Argvle, Western Australia Index 141 FOREWORD Each gem deposit-whether...agency of surlace waters, focusing on the opal deposits of Australia. Part II of this book is devoted to those... Egypt and the new find at Argyle in Western Australia are used as examples. It is worth noting that |
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| CLASSIC MINERAL LOCALITIES OF THE WORLD Asia and Australia = _ |) VieBAtO TATA JARS LIPOW Si. ao sé ... CLASSIC MINERAL LOCALITIES OF THE WORLD Asia and Australia Philip Scalisi David Cook VAN NOSTRAND REINHOLD...Nostrand Reinhold Australia Pty. Ltd. 17 Queen Street Mitcham, Victoria 3132, Australia Van Nostrand Reinhold...Classic mineral localities of the world, Asia and Australia. Bibliography: p. Includes index. 1. Mines and...resources—Asia. 2. Mines and mineral resources—Australia. 3. Mines and mineral resources—Soviet Union |
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| coronet of agate and topaz, Bert Scheps, F.G.A.A. for opal and carnelian jewellery, Harry Pearce for the clock...Miss G. Cook, The Australian Gemmologist and Queensland Mining Journal. Other kind folk helped us with...Printing Co Ltd, Tokyo. National Library of Australia Cataloguing in Publication data Perry, Nance Australian...colourbook series). ISBN 0 589 07012 6. I. Gems - Australia - Identification. I. Perry, Ron.joint author....Gemstones in Alphabetical Order Origin of Coiour - Opal 11 14 - 101 50 Tests for Identification 106 |
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| Contents 4 Map: Notable Opal Localities 50 BY BRUCE PAUL GABER 6 The Opal Enigma: Science, History...and Pins Afire: Play of Color in Opal BY MAX WEIBEL Sparkling Opal in Ancient Bones: Precious Relics...vibrant with opal pattern and color. In this extreme close-up of a Lightning Ridge black opal, the field...approximately 3 mm wide. Opal courtesy Jenni Brammall BY ALEX RITCHIE 52 An Opal Glossary of Terms BY...BY SI AND ANN FRAZIER BY PETER HUBER 64 Opal from Mexico: Unsurpassed Fire BY JURGEN SCHUTZ 18 Perfect |
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| Association: Ge:an:anological Association of Australia THE JOURNAL OF GEMMOLOGY A N D P R O C E E D...Reports another diamond found at the Murfreesboro mine. A sapphire with a colour change from green to light...occurrence of amethyst in Northern Rhodesia in a mine known as the Curlew Amethyst Deposit. Amethyst was...). The opal market. No. 11, p p . 13-14, M a r c h 1962. Australian Gemmologist, Australia produces...produces nearly all the opal used in the world and the value produced now exceeds £A 1,000,000 per a n n u |
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| Letters FEATURE ARTICLES 4 16 p. 11 Queensland Boulder Opal Richard W . Wise Update on Diffusion-Treated...Suggestions for Authors ABOUT THE COVER: Australia is the world leader in opal production. Some of the most attractive...state of Queensland. The article by Richard Wise in this issue provides on overview of Queensland boulder...boulder opal, with specific information from an active operation, the Cragg mine. The oplrls illustrated here-shown...here-shown on a classic opal-bearing Queensland boulder-all have some of the ironstone matrix as a backing |
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| DESIGNS A trip around the gem fields of Eastern Australia Conservation gemstones: Beyond fair trade? Dior...Mining A trip around the gem fields of Eastern Australia Ethical Mining and Fair Trade Conservation gemstones:...The fact that only an extremely small part of a mine run can be polished and used in jewelry further...countries, it covers these sectors vertically, from mine to marketplace, and horizontally within each of...on behalf of Wild’s Jewelry of Hong Kong, Belmont Mine and the Instituto Brasileito De Gemas & Metais. |
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| Affiliated Associations: GeDlDlologieal Association of Australia .Canadian Genunologieal Association Rhodesian... 105. 122 Journ. of Gemmology BLACK TREATED OPAL: AN ANCIENT RECIPE S O M E four years ago a peculiar...difficult, since the material had the characters of pure opal, and the dark background colour which so enhanced...n e such account stated that suitable Andamooka opal was first heated, then impregnated with sugar solution...informants spoke of heaps of poor quality rough opal being covered with old sump oil, which was then |
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| were often recovered from South Africa’s Premier mine. The term jager has been used to describe colorless...fluorescence; the name originates from the Jagersfontein mine in South Africa, where such diamonds were once common...Conference, Abstracts, Sydney, Geological Society of Australia, pp. 409–411. Nakashima S., Matsunami H., Yoshida...later in the United States (Linde, Regency), Australia (Biron), and Russia (Pough, 1965; Flanigen et...Birkner, Biron Corp., Balcatta, Australia; Dr. G. Brown, Brisbane, Australia; W. Galia, Bergisch Gladbach |
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| : " If the stone you have sent me does not break mine, it will at least make me bear my suffering patiently...of an occurrence of white jadeite at Clear Spring Mine, in the jadeite area of San Benito County, California...h e second part of a short review of Australian opal fields, the problems of mining and future prospects...prospects for the industry. After sixty years of opal production no advance in mining technique has been made...implements. T h e scarcity of rough opal has caused m a n y to leave the opal fields for more lucrative work |
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| LTD. DURBAN : 33/35 Beach Grove AUSTRALIA: BUTTERWORTH & CO. (AUSTRALIA) SYDNEY : 6/8 O’Connell Street...of the Silica Group including Amethyst, Agate and Opal 11 Turquoise and Lapis-Lazuli ize The-Jades...: : : : : . 166 XVI XVII Opal: Cabochon-cut Stones and a Faceted Fire Opal . So Cabochons of Ornamental...2 PREFACE For two decades, an earlier work of mine—Practical Gemmology—has proved a useful elementary...interference of transmitted light rays gives to the opal its unique appearance. Reflections from regularly |
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| 22 23 24 25 26 27 28 29 30 31 Spodumene Quartz Opal Turquoise Lapis Lazuli Jade – Geology and Mineralogy...to note that these include contributors from Australia, Canada, Germany, Thailand, Vietnam, the UK and...Gemstones’ becoming ‘Colour and Colour Enhancement’, and ‘Opal’ xiii Preface to the Fifth Edition being extracted...Pierre Gilson including, most importantly, synthetic opal, both white and black, and a corresponding ingenuity...stone’, a special type of glass closely resembling opal in appearance. Quartz, which for many years has |
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| Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's...property of, the old Madawaska uranium mine (called the Faraday mine before 1964). The mineral assemblage...Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized minerals in the...Oblast. Alpine-type clefts in the famous Dodo quartz mine commonly contain ilmenite, occurring as lustrous...ilmenite crystals as described here for the Dodo mine. In general, ilmenite crystals from the Subpolar |
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| production of tl1ese oils is not available, but Australia ' s an11ual export bet,veen 1938 a11d 1944 averagecl...Sumatra Japan, now Brazil Paraguay 1 00 • 1 10 Australia Patchouli Pepperx,iiot (Arvensis) Petitgrain...from Official Correspondents and specialists in Australia, Canada, Finland, Great Britain, India, Netherlands...Council for Scientific and Industrial Research, Australia, for the year ended June 30, 1947. Pp. 139. (Canberra...Administration Board, Department of Public Lands, Queensland, for the year 1946-47. Pp. 39. Includes Reports |
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| Early Mines The Mines of the Developed Bronze Age Mine Systems of the Iron Age Civilisations Hydraulic...strong country rock of granite, 375 level at Dolcoath Mine, Cornwall (photo: Burrow and Thomas, 1893) 22 ...Corta Lago opencast mine at Rio Tinto, Huelva, Spain, Small Bronze Age trench mine at Chinflon, Huelva... 2.6 Complex fireset working at the Kestel tin mine dating from the third millennium Bc Large steeply-plunging...man’, immediately after discovery in the copper mine of Chuquicamata, Chile, in 1900 (from Bird, 1979) |
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| blue and green, like the changing colors of a fire opal, flashed and instantly disappeared. ''Do either...dissolved, and the lake changed from a milky-blue opal to a transparent aquamarine. So clear was the water...had on a hunting jacket and corduroy breeches like mine. From the big side pocket he drew two eggs about...heard me out. Will you help me with this ar111 of mine, first?'' I cut the shirt away and unwrapped the...bronto's tail lift. ... Oh, lovely, yep, a couple of hayricks-full at least emerging from his nether end. That |
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| family Dampier Archipelago (W.A.) BT Archipelagoes—Australia Dampier cockatoo USE Cacatua tenuirostris Dampier...Arkansas NT Emmett Sanders Lock and Dam (Ark.) • Australia NT Harding Dam (W.A.) Harris Dam (W.A.) Little...Ranges (Vic.) UF Dandenongs (Vic.) BT Mountains—Australia Dandenongs (Vic.) USE Dandenong Ranges (Vic.)...(Australian people) BT Australian aborigines Ethnology—Australia Dangadi language USE Thangatti language Dangagla...for use as a geographic subdivision BT Streets—Australia Daphnia (May Subd Geog) [QL444.B83] BT Daphniidae |
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| and Firearms — Law and — Law and Fireproofing of Mine safety— Law and BT Eye— Protection Protective clothing...[Former heading] Safety-lamp —Equipment and supplies Mine safety— Equipment and supplies lighting Safety...Safety BT Museums USE Dye — Roadside BT Lamps Mine Saffron, False BT Carthamus Safford Valley (Ariz...Anastasia Island (Fla.) Islands Islands (Qld.) —Australia Saint Bernard, Fort (Pensacola, Fla.) USE Fort...Saint Clair (Tas.) Lake St. Clair (Tas.) BT Lakes Australia Saint Oair, Lake, Watershed (Mich, and — — Saint |
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| Thought Transference-, Kinship and j Marriage in Australia-, &c. [ O. Ba. Chios Joseph Marie Noel Valois...Marlborough legacy, Sir William Pynsent, a Somerset¬ shire baronet to whom he was personally quite unknown...country till the foundation of Netley in Hamp¬ shire. The lines include the Chatham, the Royal Marine...1386 he was elected one of the two knights of the shire for Kent, and with this dignity, though it was one...assizes and quarter sessions, and has a handsome shire hall; the county gaol is near the town. Its corn |
Hayricks Mine, Eromanga, Quilpie Shire, Queensland, Australia