| | Report (issue) | .'.' .., Mineral Collecting Sites in North Carolina By W. F. Wilson and B. J. McKenzie RUTILE GUMMITE...GARNET RUBY CORUNDUM GOLD TORBERNITE GARNET IN MICA ANATASE RUTILE AJTUNITE AND TORBERNITE THULITE...Information Circular 24 Mineral Collecting Sites in North Carolina By W. F. Wilson and B. J. McKenzie Raleigh...copies of this publication may be obtained from: North CarOlina Department of Natural Resources and Community...for the general welfare of the citizens of North Carolina. The Section conducts a number of basic and | | | Report (issue) | Information Circular 24 Mineral Collecting Sites in North Carolina By W. F. Wilson and B. J. McKenzie Raleigh...copies of this publication may be obtained from: North Carolina Department of Natural Resources and Community...Geological Survey Section, P. O. Box 27687, Raleigh, North Carolina 27611. Eldon P. Allen, Chief Geologist i ...FRONT COVER PHOTO Twinned emerald crystal from North Carolina, photo from Smithsonian Institution (slide...viable mineral collecting sites through out North Carolina. Some sites are commercially operated during | | | Report (volume) | (kunzite, hiddenite), zircon, and gem varieties of feldspar, topaz, and quartz. Gem stones maybe weathered...Del Norte County; Trinity River, Trinity County; Spanish Creek and Gopher Hill, Plumas County; Placerville...Dorado County; Cherokee Flats, Yankee Hill,and Oroville, Butte County; French Corral, Nevada County; Indian...Indian Gulch and Volcano, Amador County; and Alpine Creek, Tulare County. Other western localities are:...Diamond Basin, Ada County, Idaho; Curry County, Oreg.; and Nelson Hill, near Glacier County, Mont. The Great | | | Book (volume) | NORTInHIwo AME A Volumes John Sinkankas _ GEMSTONES OF NORTH AMERICA In Two Volumes ® Volume I Gemstones, of...of all the mineral treasures to be found in North America, are perhaps the most fascinating—and the...worthy of the name. Some, like the emeralds of North Carolina, the colorful and fabulous tourmalines and...above all, easily read and understood, GEMSTONES OF NORTH AMERICA, Volumes I and II, will be welcomed as a...abroad are becoming so scarce and expensive that North America has developed into a major exporter rather | | | Book (edition) | 1. 2. 3. 4. II. Sulphur Group Boron Group Arsenic Group Carbon Group 104 106 109 110 115 MINERALS...Amphibole Group 274 275 277 278 Beryl, etc 2. Unisilicates Chrysolite Group Garnet Group Zircon Group...Axinite 282 Danburite, lolite 286 Mica Group Scapolite Group 287 292 293 286 Nephelite, Sodalite...Sodalite, Leucite 296 302 303 304 306 Feldspar Group 8. Subsilicates Chondrodite Tourmaline Andalusite...Chlorite 337 IV. 1. 2. 3. 332 Hydromica Group Group HYDROCARBON COMPOUNDS. Simple Hydrocarbons | | | Book (edition) | ^ fe o -• vO y MINERALOGY AND MINING. Mine Accidents —Ventilation — Ore Dressing, Etc. DESCRIPTIVE...lific of valuable treats and advice." PRACTICAL MINE VENTILATION. WILSON. For the Use of Mining Engineers...above, there is also the department of Economic Mine) alogy, which is not here and (3) in the coarser...that in group 1 the crystals are formed or developed alike in all three axial directions; in group 2 the...anorthite, of the feldspar group, the form is very similar to those of the monoclinic feldspar, orthoclase | | | Book (edition) | mark the degree of symmetry which belongs to each group of forms, and which is in fact the fundamental distinction...study of these different systems will show that in group 1 1. : ; : A the crystals are formed or developed...developed alike in all three axial directions; in group 2 the development is alike in the several lateral...lateral directions, but unlike vertically ; and in group 3 the crystals are formed unlike in all three These...anorthite, of the feldspar group, the form is very similar to those of the monoclinic feldspar, orthoclase | | | Book | OX5 1GB, UK 225 Wyman Street, Waltham, MA 02451, USA Copyright © 2016 Elsevier Inc. All rights reserved...Cover photo: Amazonite open pit on the Ploskaya Mountain, Western Keivy, Kola Peninsula, Russia. Photo:...deposits in Brazil, India, Canada, Mexico, Mongolia, USA, and other countries. The goal of the conducted laboratory...(EPR), X-ray diffraction, X-ray, photo- and thermoluminescence, heat treatments, and X-ray irradiation... viii Preface Full wet chemical analysis, partial X-ray fluorescence analysis, and optical spectrographic |
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