 | | Book (volume) | | rises abruptly into the 6,000 sq. mi. Black Hills region enclosed by the Belle Fourche and Cheyenne rivers...the core of the Black Hills region. Two divisions are recognized: the Northern Section, centered in lead...a somewhat larger area around Harney Peak. The northern section is characterized by vein deposits, while...Fluorapatite (fluorescent orange). BUFFALO GAP, entire region W 37 mi. to the WY line, in stream gravels, cut...dump 5 mi. SE Barbosalite, exceptional reddish-violet crystals of Metastrengite, showy black and gold |  | | Book (volume) | | (Licking Co.) and Zanesville (Muskingum Co.), a region of rolling, wooded hills. Here, prehistoric Indians... ROSS COUNTY CHILLICOTHE, W several mi., in a region exposures of blue clay, as large masses⎯ Pyrite...valley of the Tuscarawas R. from Bolivar to Zoar Station, as nodules in limestone outcrops⎯flint. VINTON...Sec. 9⎯flint; d townships of Richland (Sec. 1, central part along an abandoned rd.), Wilkesville, Vinton...south and east of the Wichita Mts. and in the central counties of Comanche, Kiowa, Stephens and Tillman |  | | Report (issue) | | discovered in California came from the gold mining region of the Sierra Nevada, beginning with the nickel...been found near Placerville, on Webber Creek, in White Rock Canyon and at Smith's El Dorado County: Flat...Independence. Los Angeles County: It is found on the northern slopes of the Verdugo Hills, southwest of the... Brittle. Resinous. Yellow, brownish or Streak white. H = li 2.05 2.09. G. 2J. Burns with a bluish flame...rock which outcrops on the lake has been bleached white and altered to a porous mass of silica by the action |  | | Book (volume) | | (Licking Co.) and Zanesville (Muskingum Co.), a region of rolling, wooded hills. Here, prehistoric Indians... ROSS COUNTY CHILLICOTHE, W several mi., in a region exposures of blue clay, as large masses⎯ Pyrite...valley of the Tuscarawas R. from Bolivar to Zoar Station, as nodules in limestone outcrops⎯flint. VINTON...Sec. 9⎯flint; d townships of Richland (Sec. 1, central part along an abandoned rd.), Wilkesville, Vinton...south and east of the Wichita Mts. and in the central counties of Comanche, Kiowa, Stephens and Tillman |  | | Book | | addressed LO: Amber Books Lld BraWhite Lion SlreeL London NI 9PF www.amberbooks.co.uk ISBN-13:...for most silicate minerals as they are usually white and often too hard to powder easily. Quartz has...(Arizona), Tsumeb (Namibia) and Surra Burra (Australia). C Cu Colour: light rose-red on fresh surface... USA) and Cobalt (Canada). Ag Colour: silver-white Lustre; opacity: metallic; opaque, highly reflective... and one of 93kg (2051b), found in Hill End (Australia). Gold is found in igneous rocks, often associated | | | Book | | addressed LO: Amber Books Lld BraWhite Lion SlreeL London NI 9PF www.amberbooks.co.uk ISBN-13:...for most silicate minerals as they are usually white and often too hard to powder easily. Quartz has...(Arizona), Tsumeb (Namibia) and Surra Burra (Australia). C Cu Colour: light rose-red on fresh surface... USA) and Cobalt (Canada). Ag Colour: silver-white Lustre; opacity: metallic; opaque, highly reflective... and one of 93kg (2051b), found in Hill End (Australia). Gold is found in igneous rocks, often associated |  | | Book (edition) | | 166 —49 Malachite 194 Lesser-Known Gemstones Andalusite 194 Euclase 194 Hambergite 196 Tolite 196 Phenakite...(quartz) Artificially tinted green marble Red garnet Violet sapphire Pink sapphire Yellow sapphire Brown synthetic...orthorhombic Adamite Aeschynite Alexandrite Andalusite Anglesite Anhydrite Aragonite Baryte Bastite...Beryl Gahnite Galaxite Painite Phenakite Emerald Andalusite Euclase Hambergite Sapphirine Dumortierite Almandine...Euclase Lawsonite Phosphophyllite Friedelite Andalusite Eosphorite Pargasite Lazulite Actinolite Spurrite |  | | Book (edition) | | with all The color of most opaque minerals is white or gray in possible intermediate gradations. Luster...well balanced selection of mineral localities was central to the authors' effort. We took into consideration...abbreviated, e.g. canton (Switzerland), vilayet (Turkey), region (Chile), kray and oblast (Russia). The country...repeated changes of administrative divisions in central and eastern Europe during the last 60 years are...by Mobutu, and is now the Katanga administrative region again. The former Kivu province is now divided |  | | Book | | Ian Graham The University of New South Wales Australia Editorial Office MDPI St. Alban-Anlage 66 4052...Tourmaline from LCT Pegmatite in Adamello Massif, Central Southern Alps, Italy: An Investigation of Its Mineralogy...Continental Comparisons from Myanmar and Eastern Australia Reprinted from: Minerals 2019, 9, 28, doi:10.3390/min9010028...Enigmatic Alluvial Sapphires from the Orosmayo Region, Jujuy Province, Northwest Argentina: Insights...Zircon Megacrysts from Placer Deposits in the Central Highlands, Vietnam—Potential Source and Links to |  | | Book (edition) | | 164 124 Zircon - 194 Lesser-Known Gemstones Andalusite 194 Euclase 194 Hambergite 196 Iolite 196...(quartz) Artificially tinted green marble Red garnet Violet sapphire Pink sapphire Yellow sapphire Brown synthetic... orthorhombic Adamite Aeschynite Alexandrite Andalusite Anglesite Anhydrite Aragonite Baryte Bastite...Canasite 54-6 Phenakite Emerald 74-8 “74-8 Andalusite Th Nambulite 6% Cobaltite Euclase Hambergite...Phosphophyllite 3.07-3.13 Friedelite 3.06-3.19 Andalusite 3.05-3.20 Eosphorite 3.05-3.08 Pargasite 3.04-3 |  | | Journal (issue) | | Association: The Gemmological Association of Australia. THE JOURNAL OF GEMMOLOGY A N D P R O C E E...the gem LTHOUGH the gem species of Western and Northern Canada are are fairly numerous, only a few few...been made. In the the more accessible parts of Northern Manitoba, for instance, pegmatite dykes and sills...yellowishgreen masses, in association with a fibrous white tremolite, on Texada Island, B.C. (Malaspina Copper...province. CHIASTOLITE.—The Chiastolite variety of Andalusite from Great Slave Lake (N.W.T.) is outstanding |  | | Book (edition) | | Azurite 174 Malachite 176 Known Gemstones Andalusite 178 Amblygonite 192 Euclase 178 Enstatite...crystal Blue alexandrite Pink spinel Blue or violet sapphire Blue moonstone Artificially blue-tinted...green limestone Red garnet Oriental amethyst Violet spinel Oriental hyazinth Palmyra topaz Pink...Aquamarine Benitoite Cuprite Beryl Alexandrite Andalusite Anglesite Klinohumeite Andradite Demantiod...Emerald 71/2-8 Nephrite Orthoclase 4-7 4-5 4-5 Andalusite Euclase 71/2 Prehnite 71/2 Pyrite Hambergite |  | | Book (edition) | | only the silicon ions are shown black, gray and white circles represent ions with : different structural...should mention the three polymorphs of AbSiOs, andalusite, kyanite and sillimanite, indicators respectively...rubbing the mineral against a piece of unglazed white porcelain. Some minerals have specific optical properties...range; scheelite is always fluorescent in the blue-white range except when it contains molybdenum, in which...polarizing microscope: greenish-yellow (left), bluish-violet (center), Prussian blue (right). the light rays |  | | Book | | crystals. Ichinokaiva, Japan. D X 0.66 BARITE ("DESERT ROSES") Rosette Sh ape-Plate-like barite crystals...area of the western United States, the tin-bearing region of Malaya, and the silver-producing belt of Mexico...oldest known stone tools, from Olduvai Gorge, in northern Tanganyika, are believed to date back some 1,750...preserved on the walls of caves in southern France and northern Spain. 2 Even in earliest times man recognized...(volcanic glass). Volcanic glass sometimes contains white, gray, or reddish rounded bodies (spherulites) ranging |  | | Book (edition) | | Birds— R.T. Peterson 21. Birds' Nests Borror e) White e0 Chalif (east of Mississippi River) Harrison...Fishes— Eschmeyer, Herald, &) Hammann Beetles— White 30. Moths— Covell 22. Pacific States Wildflowers...Kricher et? Morrison Birding by Ear: Eastern and Central Walton et? Lawson Advanced Birding Kaufman Medicinal...the fifties assisted with some tedious black and white photographic chores. In this edition, we are primarily...the Arizona Bureau of Mines, the Arizona Sonora Desert Museum, the Canadian Museum of Nature, Yale's Peabody |  | | | | destinezite 73 analcite 76, 108,111 anatase 34, 34 andalusite 78, 79 bournonite 18, /8 braunite 81 brazilianite...metacinnabarite 13 meyerhofferite 54 mica group 104 mica, white 104 microcline 112, //3 millerite 12, /2 mimetite...plata; hence the name platinum. Coloured silver white, it is always found in igneous rocks rich in magnesium...Precambrian Shield area of central Canada and the northern United States (especially northern Michigan), the Rocky...Rocky and Andes mountains, and central Africa. Excellent examples occur at Bogoslovsk in the Urals and |  | | Book | | group 98 analcite 76, 108, 111 anatase 34, 34 andalusite 78, 79 anglesite 58, 58 anhydrite 55 ankerite...metacinnabarite 13 meyerhofferite 54 mica group 104 mica, white 104 microcline 112, /13 millerite 12, /2 orpiment...plata; hence the name platinum. Coloured silver white, it is always found in igneous rocks rich in magnesium...Precambrian Shield area of central Canada and the northern United States (especially northern Michigan), the Rocky...Rocky and Andes mountains, and central Africa. Excellent examples occur at Bogoslovsk in the Urals and |  | | Book | | represented by a set of standard m inerals producing a white 0 Mohs typical mineral determination of hardness...instance, fluorite may be colourless, white, blue, green, yellow or violet. However, there are many other minerals...chlorite - green, azurite - azure blue, albite - white. Colours of other minerals have become characteristic...alexandrite is green in sunlight, whereas it is rose-violet in artificial light. There are also minerals which...be scratched by the sharp edge of a plate. On a white plate its colour shows clearly. However, it must |  | | Book | | to an ultra-violet pioneer S. WARREN of San Gabriel, California President, Ultra-violet Products, Inc...Beyond question, development of no name ultra-violet Thomas S. Warren. has been so closely mineral-locating... The late O. C. Smith and Professor Charles E. White of the University of Maryland lent authoritative...Base Mineral Corporation. David Grigsby, of Ultra-violet Products, Inc., deserves special commendation for...Fluorescent color RED BROWN ORANGE YELLOW GREEN BLUE WHITE 26 CHARTS Chart begins at page 26 34 36 48 66 | | | Book | | an ultra-violet pioneer THOMAS S. WARREN of San Gabriel, California President, Ultra-violet Products...closely identified with the development of ultra-violet mineral-locating techniques as that of Thomas S... The late O. C. Smith and Professor Charles E. White of the University of Maryland lent authoritative...Base Mineral Corporation. David Grigsby, of Ultra-violet Products, Inc., deserves special com- mendation...BROWN 34 ORANGE 36 YELLOW 48 66 GREEN BLUE WHITE 76 84 WHAT CONTAINS BOOK COLLECTOR FORSIHE | | | Book | | represented by a set of standard minerals producing a white ’ quantitative proportion Rosiwal ° 100 1000...instance, fluorite may be colourless, white, blue, green, yellow or violet. However, there are many other minerals...chlorite — green, azurite — azure blue, albite — white. Colours of other minerals have become characteristic...alexandrite is green in sunlight, whereas it is rose-violet in artificial light. There are also minerals which...be scratched by the sharp edge of a plate. On a white plate its colour shows clearly. However, it must |  | | Book (volume) | | accurate detail and with many color and black-and-white illustrations, it describes the chemical composition...Nostrand Reinhold Australia Pty. Ltd. 17 Queen Street Mitcham, Victoria 3132, Australia Van Nostrand Reinhold...northernmost lands and finishing with places in Central America and the West Indies. If known, information...Alaska, provided data on gemstones found in that region; the Southern Onyx and Marble Company of San Diego...well-known Texas agate localities of the Alpine Region were described in detail by J. Frank Woodward |  | | Book (edition) | | are used in fashioning gemstones. absorption. (a) White combination light (blending) hues of the spectrum...is due to the absorption of certain portions of white light in its passage through the gemstone. The remainder...selective reflection. (b) The exact portions of white light which are absorbed by a gemstone or other... polishing any tone See achromatic color. White, of neutral black, or gray, agent. adductor...or adularia) that exhibits a floating, billowy, white or bluish light effect in certain directions as |  | | Book (edition) | | the tedious photographic chore of the black and white photographs, and Leon Boltin did the color work...(Orthite), Zircon, 300 Datolite, Topaz 40 Axinite, Andalusite, Sillimanite, Kyanite, Staurolite, 301 Sphene...pyrite would receive the number 2911—6. Paint a neat white rectangle on an inconspicuous place on the back...Heidelberg) should be adjusted so that the flame is blue-violet, with a bright inner cone of blue unburned gas...Platinum wire (27 gauge) Forceps Magnet Unglazed white tile Set of hardness points or minerals of the |  | | Journal (issue) | | belonged to mining companies based in the Brad region. Today, it is owned by S.C. “MINVEST” S.A. Deva...more than 2000 year old mining activity in the region. 2. Collections and exhibitions The expositional...(about 80% of the specimens originate in the Brad region, especially Musariu and Brădişor deposits). The...seems that gold mining activity over the present territory of Romania dates from about the same time with...in the extraction of precious metals from the Central and South-East Europe, between 1920 and 1948. The |
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