 | | Report (issue) | | Survey of Canada Miscellaneous Report 39 Bancroft - Parry Sound area and Southern Ontario Ann P. Sabina...Sabina L 1*1 Natural Resources Canada Ressources naturelles Canada 1986 CanadZ L COVER Left: Betafite...Collection specimen No. 42584. National Museum of Canada photo No. 1168B. Note: actual specimen is dark...Collection specimen No. 36463. National Museum of Canada photo No. 1361. Note: actual specimen is grey with...with pink cast. Geological Survey of Canada Miscellaneous Report 39 ROCKS AND MINERALS FOR THE COLLECTOR |  | | Report (issue) | | GOVERN YOUR USE OF THIS DOCUMENT Your use of this Ontario Geological Survey document (the āContentā) is governed... copyright is held by the Queenās Printer for Ontario. It is recommended that reference to the Content... . ; Ontario Geological Survey, ...670-5691 Toll Free: 1-888-415-9845, ext. 5691 (inside Canada, United States) Local: (705) 670-5691 Toll Free:...(inside Canada, United States) Local: (416) 326-2678 Toll Free: 1-800-668-9938 (inside Canada, United |  | | Book | | of that dealing simply ,;vith descriptions of properties or with listings of occurrences has not been... . . . . . . . . . . . . . . . . . . . . . . Properties .... . .. ~- . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . . . . . . Canada . . . . . . . . . . . . . . . . . . . . . . . ...... ... .................. . .. . .... . Middle East ........ . . . ...... . . . .............. . .....chen1ical assays for uranium. 3 ~ TABLE 1.1. Properties of itraniun1 and thorium NaturalJy occurnng isotopes |  | Faithfull, John W., , , Dempster, Tim J., MacDonald, John M., Reilly, Monica (2018) Metasomatism and the crystallization of zircon megacrysts in Archaean peridotites from the Lewisian complex, NW Scotland. Contributions to Mineralogy and Petrology, 173 (12) doi:10.1007/s00410-018-1527-5 | Journal (article/letter/editorial) | | PAPER Metasomatism and the crystallization of zircon megacrysts in Archaean peridotites from the Lewisian...29 October 2018 Ā© The Author(s) 2018 Abstract Zircon megacrysts are locally abundant in 1ā40 cm-thick...assemblages. Two generations of zircon are present with up to 1 cm megacrystic zircon and a later smaller equant...equant zircon represents new neocryst growth and partial replacement of the megacryst zircon within the...the ultramafic host. Both zircon types have UāPb ages of ca. 2464 Ma, broadly contemporaneous with granulite-facies |  | | Book (edition) | | Distribution ISBN 0 565 09155 7 North America including Canada, South America, All rights reserved. No part of...(sillimanite) Finding gems 7 and Kyanite 56 Properties 12 Spodumene 57 Passage of light 16 Kornerupine...Kornerupine 58 Cutting and polishing 20 Scapolite 58 Real and .fake, 22 Diopside and Enstatite...Ivory and Bone 70 Peridot 51 Amber and Jet 71 Zircon 52 Pearls, Coral and Shell 72 Spinel 53 Further...main durability, which are determined by the properties characteristics of the gems, and their chemical |  | | Report (issue) | | THE MINERALS OF FRANKLIN AND STERLING HILL SUSSEX COUNTY, NEW JERSEY BY CHARLES PALACHE UNITED STATES...Geologic map of the Franklin mining district, showing principal mineral localities.:______ 2. A, Octahedral...open vein with calcite; B, Specimen of zincite showing corroded crystals in limestone; C, Crystals of...Dodecahedral crystal of franklinite; B, Franklinite ore, showing pronounced layering and cross veinlets_----_______*____..._ 15. A, Group of crystals of roepperite; B, Scapolite and garnet--_-____-_-_---__-_---___ 66 66 74 |  | | Book | | BalmerandMichaelS.Krzemnicki UāPb Dating of Zircon and Zirconolite Inclusions in Marble-Hosted...Deposits: A Brief Review of Their Mineralogical Properties Reprinted from: Minerals 2020, 10, 472, doi:10...MSc (Economic Geology) from Queenās University, Canada, 1976 and a PhD from the University of Tasmania...working on genetic aspects of mineral deposits in Canada, Australia, New Zealand, China and many parts of...gemstone has an early history in which its colorful properties [1] were much valued in ornamental and symbolic |  | | Book (edition) | | Washington, D.C. Ā§ Queenās University, Kingston, Ontario W. H. Freeman and Company SAN FRANCISCO AND...have emphasized the interrelations of physical properties, crystal structure, and chemical composition...Optical properties. Cleavage and fracture. Hardness. Magnetic properties. Electrical properties. Surface...Surface properties. Radioactivity. 99 5 The Genesis of Minerals 12.) Chemical composition of the earthās...application to the determination of the optical properties of minerals from about 1870 on, placed a new |  | Moreto, Carolina Penteado Natividade, Monteiro, Lena V. S., Xavier, Roberto P., Amaral, Wagner S., dos Santos, Ticiano JosĆ© S., Juliani, Caetano, de Souza Filho, Carlos Roberto (2011) Mesoarchean (3.0 and 2.86Ā Ga) host rocks of the iron oxideāCuāAu Bacaba deposit, CarajĆ”s Mineral Province: UāPb geochronology and metallogenetic implications. Mineralium Deposita, 46 (7) 789-811 doi:10.1007/s00126-011-0352-9 | Journal (article/letter/editorial) | | which were intensely affected by sodic (albiteāscapolite), potassic, chloritic, and hydrolytic hydrothermal...inductively coupled plasmaāmass spectrometry data for zircon from a sodically altered sample of the Serra Dourada...PbāPb data. The Bacaba deposit is located 7 km to east of the Sossego copper mine, which was the first...coupled plasmaāmass spectrometry (LA-ICPMS) UāPb zircon geochronological analyses of the hydrothermally...Pium granulites are 3,002 Ā± 14 Ma (UāPb SHRIMP zircon; Pidgeon et al. 2000) and 3,050 Ā± 57 Ma (PbāPb |  | | Book | | Pectolite 3 Chondrodite Zircon Analcite 41 Anthophyllite - Gedrite 1 82 Scapolite Wollastonite Birefringence...field of view illustrated but, in general, only properties which can be seen in the photographs are discussed...one field of view, to illustrate the different properties which we wished to show. In a few cases the photographs...Prehnite Allanite 1102xl0- 7 cm Pectolite Scapolite - 0.040 THIRD - 0.045 Cummingtonite-Grunerite...colours are mostly second order; the highest colour showing in this view is the yellow in the field - these |  | | Journal (article/letter/editorial) | | overgrowths with two to ļ¬ve growth stages. The detrital zircon cores are rounded or euhedral to subhedral in shape...Ma have Th/Uāratios less than 0.1 implying that zircon growth corresponds to the thermal events. Zircons...granulite grade metamorphic event. Keywords: Sri Lanka, Zircon multiāstage overgrowths, UāPb geochronology, LAāICPāMS...Mozambique belt between East and West Gondwana, and thus, Sri Lanka was juxtaposed with East Africa (Tanzania...India in the west, and with East Antarctica (LĆ¼tzowāHolm Bay area) in the east (Kriegsman, 1993; Grunow |  | Sheard, E. R., Williams-Jones, A. E., Heiligmann, M., Pederson, C., Trueman, D. L. (2012) Controls on the Concentration of Zirconium, Niobium, and the Rare Earth Elements in the Thor Lake Rare Metal Deposit, Northwest Territories, Canada. Economic Geology, 107 (1) 81-104 doi:10.2113/econgeo.107.1.81 | Journal (article/letter/editorial) | | Lake Rare Metal Deposit, Northwest Territories, Canada EMMA R. SHEARD,1,ā ANTHONY E. WILLIAMS-JONES,1...University, 3450 University Street, Montreal, Quebec, Canada H3A 2A7 2 Avalon Rare Metals Inc., 130 Adelaide...Adelaide Street West, Suite 1901, Toronto, Ontario, Canada M5H 3P5 Abstract The Thor Lake rare metal (Zr...Lake zone), and in which Zr is hosted primarily by zircon, Nb primarily by ferrocolumbite and fergusonite-(Y)...fergusonite-(Y), and HREE by fergusonite-(Y) and zircon. The LREE are present mainly in monazite-(Ce), allanite-(Ce) |  | | Journal (issue) | | Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino Royal Ontario Museum Toronto...Toronto , Ontario Steven R. Morehead Green Valley, AZ Donald R. Peacor University of Michigan Ann Arbor, Ml...Ml Andrew C. Roberts Geol. Surv. of Canada Ottawa George W. Robinson Seaman Mineral Museum, MTU Houghton...INTRODUCTION The Riddarhyttan ore field is situated in the county of Vastmanland, south-central Sweden, about 70...a rich zone 187 Figure 1. Location map showing the county of Vastmanland and the Riddarhyttan ore field |  | | Book (edition) | | that resistant minerals, such, for example, as zircon, rutile and garnet, have survived many such cycles... ILLUSTRATIONS PAGE FIG. Twinned 1. Rutile, 2. Zircon Crystals 42 Crystal 42 ....... ........ 43...Sandstone (Arlington, 19. Quartzite 20. . Columbia County, Wisconsin, U.S.A.) Quartzite (Maughold, Isle of.... 244 . 250 Shap, Westmorland) 252 39. Scapolite-rock (Port Shepstone, Natal) . . .257 . 40...(fluorspar) . \ grains, - . -. . . . the showing . Cleavage fragments of hornblende 55. Water-worn |  | | Journal (article/letter/editorial) | | Amsterdam -- Printed in The Netherlands POSSIBLE ZIRCON U--Pb EVIDENCE FOR PAN-AFRICAN GRANULITEF A C I...Verdurmen, E.A.Th. and Verschure, R.H., 1982. Possible zircon U--Pb evidence for Pan-African granulite-facies...southern Tanzania. Precambrian Res., 17: 31--40. Four zircon fractions of garnet-bearing two-pyroxene granulite...amount of older (2--3 Ga) radiogenic lead. The zircon data may be interpreted as indicating an event...extent of the Pan-African thermotectonic event in East Africa (hatched). t h e Mozambique belt of eastern |  | | Book (edition) | | chapters, the essentials concerning the imĀ¬ portant properties of gemstones are described in a lucid manner...them. The book also includes useful tables of properties, a glossary, and various flow charts. This handbook...they appear in so many collections that their properties and descriptions were added to Chapter XV and...gemologist. Most minerals have relatively constant properties. Most gemĀ¬ stones are minerals, so accurate property...part of this book is devoted to the important properties of gems and to their identification by various |  | | Book (edition) | | JEWELERS POCKET REFERENCE BOOK Robert M. Shipley PROPERTIES OF GEM VARIETIES OF MINERALS Edward Wigglesworth...chapters, the essentials concerning the imĀ¬ portant properties of gemstones are described in a lucid manner...them. The book also includes useful tables of properties, a glossary, and various flow charts. This handbook...they appear in so many collections that their properties and descriptions were added to Chapter XV and...familiarity with many of their properties and the tests for determining those properties is essential. Gems, being |  | Furlanetto, Francesca, Thorkelson, Derek J., Daniel Gibson, H., Marshall, Daniel D., Rainbird, Robert H., Davis, William J., Crowley, James L., Vervoort, Jeffrey D. (2013) Late Paleoproterozoic terrane accretion in northwestern Canada and the case for circum-Columbian orogenesis. Precambrian Research, 224. 512-528 doi:10.1016/j.precamres.2012.10.010 | Journal (article/letter/editorial) | | Paleoproterozoic terrane accretion in northwestern Canada and the case for circum-Columbian orogenesis Francesca...V5A 1S6, Canada Geological Survey of Canada, 601 Booth Street, Ottawa, ON, K1A 0E8, Canada c Department...Ma. The six youngest UāPb ages of the detrital zircon from quartz sandstones of the Wernecke Supergroup...States, and of the Labradorian Orogeny of eastern Canada which was in turn connected with the Gothian Orogeny...ancestral North American continent at 1.60 Ga, showing minimum extent of Racklan Orogen in context of |  | Singh, Yengkhom Kesorjit, De Waele, Bert, Karmakar, Subrata, Sarkar, Sunayana, Biswal, Tapas Kumar (2010) Tectonic setting of the Balaram-Kui-Surpagla-Kengora granulites of the South Delhi Terrane of the Aravalli Mobile Belt, NW India and its implication on correlation with the East African Orogen in the Gondwana assembly. Precambrian Research, 183 (4) 669-688 doi:10.1016/j.precamres.2010.08.005 | Journal (article/letter/editorial) | | India and its implication on correlation with the East African Orogen in the Gondwana assembly Yengkhom...Delhi Terrane Granulites Zircon UāPb SHRIMP dating Neoproterozoic terrane East African Orogen Gondwana...Resolution Ion MicroProbe (SHRIMP) UāPb dating of zircon from pelitic granulites and synkinematically emplaced...Circum Indian Orogens that include the East African Orogen (East Africa and Madagascar), the Southern Granulite... metamorphism and uplift history, supported by zircon geochronology, the Balaram-Kui-Surpagla-Kengora |  | | Conference Proceedings (Volume) | | intrusive complex, McFaulds Lake greenstone belt, Ontario .................................................Lac-des-Iles palladium ore deposits, Western Ontario, Canada ........ 978 Charley J. Duran, Sarah-Jane...PGE-enrichment in the River Valley Intrusion, Ontario, Canada: implications for ācontact-typeā PGE-Cu-Ni...Findlay The Platinova Reef, Skaergaard Intrusion, East Greenland: an example of the formation of low volume...sulphide lenses at the Delta deposit, Cape Smith Belt, Canada: implication for the distribution of PGE Pierre-Jean |  | | Report (issue) | | commercial borates. Lawsonite, first found in Marin county in 1895, has proved to be of great petrographic...nickel telluride, melonite, found in Calaveras County in 1867. New minerals and new mineral this is ...structure which is expressed in its form and other properties. definite chemical composition and, if Practically...pegmatites, are rocks that usually resemble banded, showing the gradual filling of a crack. granite in composition...products. The gem-bearing pegmatites of San Diego County have aroused special masses, interest. Many |  | | Journal (issue) | | (Fax 071 404 8843) J. Gemm., 1993,23,7 387 Zircon: a study of material donated by Mr W.C. Buckingham...directed towards determining any variation in properties from the different localities. However, other...directed towards determining possible variation in properties of the zircons. There were 12 packets of zircons...4, 5 and 12, all fell within the range for high zircon (1.925 1.984). Specific gravity was determined...None None Mustard None None LWUV Table II: Properties of zircons from various localities in Indo-china |  | | Book | | Drainage Patterns: An Example from the Edge of the East Antarctic Ice Sheet . . . . . . . . . . . . . ....Sikhote-Alin and Koryak-Kamchatka Regions (Russian Far East) and Western Paciļ¬c . . . . . . . . . . Pavel V...Special Reference to Hinterland Tectonics: Data from Zircon Fission-Track and Heavy Mineral Analysis . . ....from the Sherwood Sandstone Group (Triassic) of the East Irish Sea Basin and Surrounding Areas. . . 1073...BAUMGARTNER Mineral Services Canada, 205-930 Harbourside Drive, North Vancouver, B.C., Canada T. BEZECZKY Institute |  | | Conference Proceedings (Volume) | | modelling of the ore body structural complexities: KDC East Gold Mine, South Africa . . .....................formation of gold-sulphide deposits, West Kalba, east Kazakhstan ......................................Xiaorequanzi copper, zinc (selenium) deposit in East Tianshan, Xinjiang, China MinLiu, Cheng Wenming...model of the world-class Bakyrchik gold deposit, East Kazakhstan Indira Mataibayeva, Olga Frolova, Anastassiya...characteristics of the giant Bakyrchik gold deposit, East Kazakhstan ................. 221 ........... |  | | Book (edition) | | example, a simple tetragonal crystal of the mineral zircon, which is a silicate of the element zirconium,...points of symmetry than Fig.12. A Crystal of Zircon showing the Symmetry of āTetragonal Crystals. any...symmetry. But in crystals, such as the example of zircon shown in Figure 12, we find only one axis of tetragonal...Rhombohedral or Trigonal Division, although often showing as part of their development a six-sided prism...Crystal. A Crystal of Beryl showing Hexagonal Symmetry. A Crystal of Calcite showing Trigonal Symmetry. A Grouping |
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