 | | 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 “Content”) is governed... copyright is held by the Queen’s 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 .... . .. ~- . . . . . . . . . . . . . . . ....................................... . Calcite-Fluorite-Apatite Vein-Dikes ............................. . . . . . . . . . . . . . . . . . . . . . . . Canada . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . Radioactive Fluorite Deposits . . . . . . . . . . . . . . . . . . |  | | Journal (issue) | | Colorado. Although some minerals, such as fluorite, hematite, and zircon, commonly occur in macroscopic sizes...in this article was largely based on physical properties such as color and symmetry. In some cases, however...batholith, in an area north of Florissant in Teller County, taken prior to the arsoncaused 2002 Hayman fire...Teller County and the Lake George area of Park County), the St. Peters Dome area in El Paso County (encompassing...Creek area in Jefferson County, and the Sentinel Rock area in El Paso County (see map below). The Pikes |  | | Journal (issue) | | Mozambique| Chondrodite from Tanzania| Purple garnets from East Africa|Green prase opal from Tanzania|Trapiche ruby...slices from Myanmar|Wurtzite from Tanzania|Star zircon| Amber processing in Lithuania|Shungite|Gem-set...and Katrien De Corte 692 Age Determination of Zircon Inclusions in Faceted Sapphires By Klemens Link...Groat, University of British Columbia, Vancouver, Canada; Thomas Hainschwang, GGTL Laboratories, Balzers...Gemmologisches Institut Hamburg, Germany; Tay Thye Sun, Far East Gemological Laboratory, Singapore; Pornsawat Wathanakul |  | | Journal (article/letter/editorial) | | magmatic precursor minerals such as columbite and zircon by F-rich deuteric solutions that were retained...distributions show strong enrichment in HREE. Gel-zircon is the principal residence of the HREE, disseminated...The Brockman rare-metals deposit, located in the East Kimberley region of Western Australia (Fig. 1),...kilometres (Fig. 1). Dips are near vertical or steeply east on the western flank of the syncline and steep to...35 metres, gradually thickening down-dip to the east where the source volcanic vent is believed to be |  | | Book (edition) | | Washington, D.C. § Queen’s 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 earth’s...application to the determination of the optical properties of minerals from about 1870 on, placed a new |  | | Book | | Building, Trumpmgton Street, Cambridge CBZ IRP 32 East 57th Street. New York, NY 10022, USA 10 Stamford...Appearance Physical Properties Occurrence and Associated Minerals Optical Properties Chemical Data Crystallography...at a meeting of the Mineralogical Association of Canada, and, at about the same time, Mr. Melanson and...collection was acquired by the National Museum of Canada. Many other collectors are listed in the ac- ...in Kingston, Ontario, in 1967. Many n1incralogists and petrologists from outside Canada attended this |  | | 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 |  | 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,† 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) |  | | 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 ‘contact-type’ 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) | | 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_----_______*____...ILLUSTRATIONS Page PLATE 16. A, Group of crystals of zircon from a cavity; B, Allanite crystal in pegmatite; |  | Domnick, Urs, Cook, Nigel J., Bluck, Russel, Brown, Callan, Ciobanu, Cristiana L. (2018) Petrography and geochemistry of granitoids from the Samphire Pluton, South Australia: Implications for uranium mineralisation in overlying sediments. Lithos, 300. 1-19 doi:10.1016/j.lithos.2017.11.031 | Journal (article/letter/editorial) | | include quartz + hematite, hematite + coffinite, fluorite + quartz, and clay minerals. Minor chlorite and...west from the ~1.85 Ga Donington Suite in the south east, and on a broader scale, separating NU the western... and the pluton focused on in this study in the east, informally called the Samphire or Mullaquana pluton...the larger part of the basement to the south and east of the CE pluton as indicated by geophysics. This...pluton. These have been dated by D SHRIMP U-Pb zircon methods, yielding ages of 1583±4 Ma for the green |  | Hoshino, Mihoko, Watanabe, Yasushi, Murakami, Hiroyasu, Kon, Yoshiaki, Tsunematsu, Maiko (2013) Formation Process of Zircon Associated with REE-Fluorocarbonate and Niobium Minerals in the Nechalacho REE Deposit, Thor Lake, Canada. Resource Geology, 63 (1) 1-26 doi:10.1111/j.1751-3928.2012.00207.x | Journal (article/letter/editorial) | | 1: 1–26 Original Article Formation Process of Zircon Associated with REE-Fluorocarbonate and Niobium...Minerals in the Nechalacho REE Deposit, Thor Lake, Canada Mihoko Hoshino, Yasushi Watanabe, Hiroyasu Murakami...Nechalacho REE in the Proterozoic Thor Lake syenite, Canada, were studied in order to clarify the enrichment...albitized and potassic altered miaskitic syenite. Zircon is the most common REE mineral in the REE ore units...and is divided into five types as follows: Type-1 zircon occurs as discrete grains in phlogopite, and has |  | Liu, Yan, Hou, Zengqian, Zhang, Rongqing, Wang, Ping, Gao, Jianfeng, Raschke, Markus B. (2019) Zircon Alteration as a Proxy for Rare Earth Element Mineralization Processes in Carbonatite-Nordmarkite Complexes of the Mianning-Dechang Rare Earth Element Belt, China. Economic Geology, 114 (4) 719-744 doi:10.5382/econgeo.4660 | Journal (article/letter/editorial) | | Economic Geology, v. 114, no. 4, pp. 719–744 Zircon Alteration as a Proxy for Rare Earth Element Mineralization...Colorado, Boulder, Colorado 80309, USA Abstract Zircon is a common accessory mineral in igneous rocks...the formation of the REE deposits. Three types of zircon from fresh and altered nordmarkite were identified...ore-forming fluids and show a transition to hydrothermal zircon. Type I, type II, and type III zircons have DaT...damage. However, the Raman frequency of type III zircon can reach 991 cm–1 with a line width of 28 cm–1 |  | | Journal (article/letter/editorial) | | University, 3450 University Street, Montreal, QC, Canada, H3A 0E8 Abstract The Cenozoic Ambohimirahavavy...strength element (HFSE)-rich phases consist mainly of zircon, bastnäsite-(Ce), and Ca-REE-, and Ca-HFSE-rich...the main HFSE-rich phases are bastnäsite-(Ce), zircon, pyrochlore, Nb-rich titanite, and an unidentified...andradite, phlogopite, quartz, fluorite, and fluorapatite. The secondary zircon is characterized by a low...complexes, precipitated as zircon and pyrochlore due to deposition of fluorite and a consequent decrease |  | RASLAN, Mohamed F., EL-SHALL, Hassan E., OMAR, Sayed A., DAHER, Ahmed M. (2010) Mineralogy of polymetallic mineralized pegmatite of Ras Baroud granite, Central Eastern Desert, Egypt. Journal of Mineralogical and Petrological Sciences, 105 (3) 123-134 doi:10.2465/jmps.090201 | Journal (article/letter/editorial) | | several economic minerals. These minerals include zircon, thorite, phlogopite mica, and columbite, in addition...numerous inclusions of variable size and pattern in zircon. Electron microprobe analysis confirmed the presence...Th. - - - - - - - Keywords: Samarskite Y, Zircon and thorite inclusions, Ras Baroud granitic pegmatite...metal mineralizations including Nb Ta oxides and zircon (e.g., Matsubara et al., 1995; Hanson et al., 1998;...Pegmatitic bodies in Wadi El Baroud area. (D) Sketches showing the studied pegmatites in Ras Baroud granitic mass |  | Kebede, Tesfaye, Horie, Kenji, Hidaka, Hiroshi, Terada, Kentaro (2007) Zircon ‘microvein’ in peralkaline granitic gneiss, western Ethiopia: Origin, SHRIMP U–Pb geochronology and trace element investigations. Chemical Geology, 242 (1) 76-102 doi:10.1016/j.chemgeo.2007.03.014 | Journal (article/letter/editorial) | | (2007) 76 – 102 www.elsevier.com/locate/chemgeo Zircon ‘microvein’ in peralkaline granitic gneiss, western...5 March 2007 Editor: S.L. Goldstein Abstract A zircon ‘microvein’ composed of several hundred crystals...abundances of the ‘microvein’ and host granitic gneiss zircon were determined using a sensitive high mass resolution...‘microvein’ zircon and host granite zircon, hereafter referred to as Type-I and Type-II zircon, respectively...Ubiquitous fluorite microinclusions in bright BSE domains of Type-I and less commonly, Type-II zircon suggest |  | Poitrasson, Franck, Paquette, Jean-Louis, Montel, Jean-Marc, Pin, Christian, Duthou, Jean-Louis (1998) Importance of late-magmatic and hydrothermal fluids on the Sm–Nd isotope mineral systematics of hypersolvus granites. Chemical Geology, 146 (3) 187-203 doi:10.1016/s0009-2541(98)00010-2 | Journal (article/letter/editorial) | | Alkali–feldspar, amphibole, inclusion-free zircon, fluorite and fergusonite give an age of 331 " 10 Ma...inclusion-free zircon yield a significantly younger age at 291 " 13 Ma. The latter is validated by a zircon U–Pb...zircons. This feature is attributed to apatite andror zircon core inheritance, through contamination, during...hypersolvus peralkaline granite of Evisa. Amphibole, fluorite, sphene and fergusonite yield an age of 259 "...whereas the whole-rock, alkali–feldspar and metamict zircon give an age at 209 " 14 Ma. In this case, the former |  | | 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 |  | Su, Hui-Min, Jiang, Shao-Yong, Zhu, Xin-You, Duan, Zhen-Peng, Huang, Xing-Kai, Zou, Tao (2021) Magmatic-hydrothermal processes and controls on rare-metal enrichment of the Baerzhe peralkaline granitic pluton, inner Mongolia, northeastern China. Ore Geology Reviews, 131. 103984pp. doi:10.1016/j.oregeorev.2021.103984 | Journal (article/letter/editorial) | | 107–18.464) and 207Pb/204Pb ratios (15.497–15.549), showing that they were probably derived from a common juvenile...Loparite Monzonite Pyrochlore Synchysite-(Ce) Thorite Zircon Bast-(Ce) Cst Col-(Fe) Flc Gad-(Ce) Gad-(Y) Gth...(Xing’an-Mongolia) Orogenic Belt, which constitutes the east part of the CAOB, represents a collage of three...in laparite, columbite(Fe), and pyrochlore, and zircon is the only ore mineral for Zr. Table 1 lists the...into the East body (ca. 0.3 km2) and West body (ca. 0.1 km2) at the surface (Fig. 1c). The East body of |  | | Journal (article/letter/editorial) | | et al. (2000) reported an upper intercept U-Pb zircon age of 972+4 Ma for orthogneisses intruded by the...largest of these extensional basins, yields U-Pb zircon crystallization age of 532+6 Ma (Fetter, 1999)...allanite rimmed by epidote, sphene, apatite and zircon. Enclave swarms of dioritic composition are widespread...Pontal. PWSZ and PESZ are the two branches (west and east) of the Pernambuco lineament as proposed by Neves...crenulated and corroded plagioclase crystals, showing calcic zone and needles of apatite, reflect magma |  | | Journal (issue) | | Stettin Complex, Wausau Syenite Compley, Marathon County, Wisconsin, USA……………………………………………..21 DOLGOPOLOVA...STRYJEWSKI, A. 222 Rn and 220Rn emanations from zircon crystals collected in Norway pegmatites: a comparison...geochemistry of the Rau pegmatite group, Yukon Territory, Canada………..126 SIMMONS, W.B., FALSTER, A.U. Garnet layer...Rwamagana-Musha-Ntunga pegmatite-quartz vein field (East Rwanda): identification of mixing processes betwen...cavities in the Havey pegmatite, Poland, Androscoggin County, Maine, USA…………………………………………………………………………173 WISE |  | | Journal (article/letter/editorial) | | and valuable. One might find a $500 price on a fluorite that would cost $5 if it came from any non-Pakistani...et al., 1999), a region characterized by multiple east to northeast-trending thrust faults formed during...common accessory minerals are ilmenite, zircon and fluorite. The bastnaesite-bearing veins are in the...the Himalayan foothills of Northern Pakistan, showing the locations of Peshawar and Zagi Mountain. MCT... Table 1. Minerals from Zagi Mountain. Halide Fluorite CaF2 Oxides Hollandite Ilmenite “Limonite” Rutile |  | McCreath, J. A., Finch, A. A., Simonsen, S. L., Donaldson, C. H., Armour-Brown, A. (2012) Independent ages of magmatic and hydrothermal activity in alkaline igneous rocks: The Motzfeldt Centre, Gardar Province, South Greenland. Contributions to Mineralogy and Petrology, 163 (6) 967-982 doi:10.1007/s00410-011-0709-1 | Journal (article/letter/editorial) | | hydrothermal alteration process in the North and East of the complex, part of a subdivision of the Centre...contrast the radiogenic isotope geochemistry of the zircon and pyrochlore to obtain independent age estimates...spurious. The overlap between the magmatic U–Pb zircon and the Pb–Pb pyrochlore age suggests that alteration...magmatism. Keywords Alkaline Geochronology Zircon Pyrochlore Lead isotopes Hydrothermal alteration...elements are intimately associated with areas showing pervasive hydrothermal alteration (Tukiainen et |
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