Download or read book The Colours of Opaque Minerals written by Andrew Peckett and published by . This book was released on 1992 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Colour is the most obvious property that the microscopist uses in the identification of opaque minerals. This book sets out to answer the question why do particular opaque minerals have the colours that we see? It includes not only the colour of an opaque mineral seen in plane polarized light but also the colours of anisotropic minerals viewed between crossed and slightly uncrossed polars.
Download or read book Colours of Opaque Minerals written by A. Peckett and published by Springer. This book was released on 1992-02-29 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Colour is the most obvious property that the ore microscopist uses in the identification of opaque minerals. This book sets out to answer the question: Why do particular opaque minerals have colours we see? This includes not only the colour seen in plane polarized light, but also the colours of anisotropic minerals viewed between crossed or slightly uncrossed polars. Beginning with an explanation of the physiological aspects of colour perception and the CIE (Commission Internationale de L'Eclairage) numerical colour specification, the text goes on to examine in detail the physics of the interaction of light with minerals and how the optical properties of sections can be explained in terms of the dispersion of the relative permittivity tensor.
Download or read book Microscopical Determination of the Opaque Minerals written by Joseph Murdoch and published by . This book was released on 1916 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Mineralogy written by Colin D Gribble and published by CRC Press. This book was released on 2003-09-02 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering theory and practice, this wide-ranging introductory textbook covers the main optical properties of rock-forming minerals that can be recognized under the polarizing microscope. The authors elucidate the basic elements of microscopy, the theory of light transmission through translucent minerals, and the properties of light reflected from opaque minerals. They discuss properties of the main silicate and non-silicate minerals, both translucent and opaque and how the optical properties may be used to identify a mineral. The book features many diagrams, summary tables, and four pages of color illustrations, making it an ideal textbook as well as an authoritative reference.
Download or read book Determination of the Opaque Minerals written by Charles Mason Farnham and published by . This book was released on 1931 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock forming Minerals in Thin Section written by Hans Pichler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Identificationof rock-forming minerals in thin section is a key skill needed by all earth science students and practising geologists. This translation of the completely revised and updated German second edition (by Leonore Hoke, Institute of Geological and Nuclear Sciences, New Zealand) provides a comprehensive guide to identifying 140 of the most important rock-forming mineral species. The book is divided into three main parts. Part A is a practical guide to the fundamentals of crystal optics, polarization microscopy and the practical use of microscopes. Part B gives a detailed description of the characteristic optical features, special features, and the paragenesis of the most common rock-forming minerals. This well-illustrated part is divided into opaque minerals, isotropic, uniaxial and optical biaxial mineral groups. Part C contains identification tables for the minerals and diagrams showing the international classification of magmatic rocks, as well as a colour plate section showing crystal forms of minerals. The book will provide an invaluable guide to all undergraduate earth scientists, as well as to professional geologists requiring an overview of mineral identification in thin section.
Download or read book Microscopic Study of Opaque Minerals written by Raymond Galopin and published by . This book was released on 1972 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tables for the Determination of Common Opaque Minerals written by Paul G. Spry and published by . This book was released on 1987 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of the optical properties of opaque minerals using a reflected-light polarizing microscope are difficult because they require demanding and exacting techniques. Unlike transparent minerals, which can be easily identified by tests using a transmitted-light petrographic microscope, opaque minerals have few optical properties that can lead to unambiguous identification. The principal properties used to identify opaque minerals are colour and colour intensity. The tables given here are designed to serve as a rapid and efficient way of identifying the common opaque minerals.
Download or read book Atlas Opaque And Ore Minerals written by R. A. Ixer and published by Springer. This book was released on 1992-03-31 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflected light microscopy is the standard method for the This atlas contains nearly four hundred colour photomicro characterization of ore minerals and hence its role in economic graphs, each accompanied by a description and used to illustrate mineral studies is well established. However, the technique has common mineral assemblages. The photomicrographs are been neglected in routine petrographical studies of unminera grouped together into blocks of associations under a broad lized rocks. This is partly because the recognition and identifi genetic classification scheme, and each block is preceded by a cation of opaque minerals using their optical properties in text that is intended as a brief background and introduction to reflected light is a skill that takes time to master and partly the figured examples and an expansion of their mineralogy and because electron microscopy and microprobe techniques are petrography. The text, therefore, is biased towards descriptive as a substitute for, rather than alongside, the polarizing used petrography and away from economic geology, detailed microscope. descriptions of deposits or ore genesis. The majority of the Unlike translucent minerals in transmitted light, many of the references, nearly all of which are to be found in easily accessible optical properties of opaque minerals in reflected light are textbooks, conference volumes, or journals, reflect this bias. perceived to change as the viewing conditions are altered. In However, for the more important classes of mineral deposits, well polished, untarnished sections the perceived surface colour some recent generalized references are included.
Download or read book Atlas Opaque And Ore Minerals written by R. A. Ixer and published by Springer. This book was released on 1990 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflected light microscopy is the standard method for the This atlas contains nearly four hundred colour photomicro characterization of ore minerals and hence its role in economic graphs, each accompanied by a description and used to illustrate mineral studies is well established. However, the technique has common mineral assemblages. The photomicrographs are been neglected in routine petrographical studies of unminera grouped together into blocks of associations under a broad lized rocks. This is partly because the recognition and identifi genetic classification scheme, and each block is preceded by a cation of opaque minerals using their optical properties in text that is intended as a brief background and introduction to reflected light is a skill that takes time to master and partly the figured examples and an expansion of their mineralogy and because electron microscopy and microprobe techniques are petrography. The text, therefore, is biased towards descriptive as a substitute for, rather than alongside, the polarizing used petrography and away from economic geology, detailed microscope. descriptions of deposits or ore genesis. The majority of the Unlike translucent minerals in transmitted light, many of the references, nearly all of which are to be found in easily accessible optical properties of opaque minerals in reflected light are textbooks, conference volumes, or journals, reflect this bias. perceived to change as the viewing conditions are altered. In However, for the more important classes of mineral deposits, well polished, untarnished sections the perceived surface colour some recent generalized references are included.
Download or read book Atlas Opaque And Ore Minerals written by R. A. Ixer and published by Springer. This book was released on 2012-12-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflected light microscopy is the standard method for the This atlas contains nearly four hundred colour photomicro characterization of ore minerals and hence its role in economic graphs, each accompanied by a description and used to illustrate mineral studies is well established. However, the technique has common mineral assemblages. The photomicrographs are been neglected in routine petrographical studies of unminera grouped together into blocks of associations under a broad lized rocks. This is partly because the recognition and identifi genetic classification scheme, and each block is preceded by a cation of opaque minerals using their optical properties in text that is intended as a brief background and introduction to reflected light is a skill that takes time to master and partly the figured examples and an expansion of their mineralogy and because electron microscopy and microprobe techniques are petrography. The text, therefore, is biased towards descriptive as a substitute for, rather than alongside, the polarizing used petrography and away from economic geology, detailed microscope. descriptions of deposits or ore genesis. The majority of the Unlike translucent minerals in transmitted light, many of the references, nearly all of which are to be found in easily accessible optical properties of opaque minerals in reflected light are textbooks, conference volumes, or journals, reflect this bias. perceived to change as the viewing conditions are altered. In However, for the more important classes of mineral deposits, well polished, untarnished sections the perceived surface colour some recent generalized references are included.
Download or read book The Ore Minerals Under the Microscope written by Bernhard Pracejus and published by Elsevier. This book was released on 2015-06-25 with total page 1119 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Ore Minerals Under the Microscope: An Optical Guide, Second Edition, is a very detailed color atlas for ore/opaque minerals (ore microscopy), with a main emphasis on name and synonyms, short descriptions, mineral groups, chemical compositions, information on major formation environments, optical data, reflection color/shade comparison with four common/standard minerals of a similar color or grey shade, and up to five high-quality photos for each mineral with scale. In addition, the atlas contains a compilation from some of the prominent publications in the field of ore microscopy presented on a list of 431 minerals. - Concise, full-color pictorial reference for scientists and geologists - Explains how to describe and identify microscopic samples of minerals - Draws material from prominent literature yielding more than 400 different minerals
Download or read book A Practical Introduction to Optical Mineralogy written by Colin Gribble and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microscopy is a servant of all the sciences, and the microscopic examina tion of minerals is an important technique which should be mastered by all students of geology early in their careers. Advanced modern text books on both optics and mineralogy are available, and our intention is not that this new textbook should replace these but that it should serve as an introductory text or a first stepping-stone to the study of optical mineralogy. The present text has been written with full awareness that it will probably be used as a laboratory handbook, serving as a quick reference to the properties of minerals, but nevertheless care has been taken to present a systematic explanation of the use of the microscope as well as theoretical aspects of optical mineralogy. The book is therefore suitable for the novice either studying as an individual or participating in classwork. Both transmitted-light microscopy and reflected-light microscopy are dealt with, the former involving examination of transparent minerals in thin section and the latter involving examination of opaque minerals in polished section. Reflected-light microscopy is increasing in importance in undergraduate courses on ore mineralisation, but the main reason for combining the two aspects of microscopy is that it is no longer acceptable to neglect opaque minerals in the systematic petrographic study of rocks. Dual purpose microscopes incorporating transmitted- and reflected-light modes are readily available, and these are ideal for the study of polished thin sections.
Download or read book Heavy Minerals in Colour written by M.A. Mange and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although some handbooks on the microscopic identi In Part I the concept of heavy mineral analysis is fication of heavy mineral grains are available, a introduced and the relative significance of factors comprehensive manual illustrated in colour has not affecting heavy mineral assemblages is discussed. There been published until now. Because the appearance of are brief references to the commonly used laboratory minerals in grain mounts differs considerably from methods and auxiliary techniques. It concludes with those seen in a thin section, a different approach is some examples of the application of heavy mineral necessary for the identification of detrital grains. studies. Coloured photomicrographs, showing their colour Part II contains the descriptions of 61 transparent shades, pleochroism and interference tints, provide heavy mineral species, including those which are an excellent means of assisting recognition. As a commonly authigenic in sediments. Positive identi number of mineral grains have similar optical proper fication of authigenic minerals is important to avoid ties and morphology, it is equally important to confusion and to help recognition of diagenetic describe them verbally in detail, pointing out events. In the mineral descriptions considerable characteristic features and differences. emphasis is placed upon detrital morphology and This book is intended primarily as a manual that diagnostic features. Optical properties and character describes and illustrates the transparent heavy min istics are detailed, together with information on host erals most commonly found in sediments. It is hoped rocks.
Download or read book The Quantitative Measurement of Colour in Minerals written by Win Htein and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The present study has been directed towards investigating quantitative measurements of colours in minerals, which might serve as a readily accessible means of identification and understanding related properties. A review of the concepts of colour measurement is described in the first part of the thesis. Attention has been paid to the improvement and application of methods of colour measurement,- in mineralogy and gemmology. Computational procedures and all the necessary computer programmes for calculating colour values are given with examples. For this purpose appropriate measurements of spectral reflectivity for opaque minerals, and spectral transmittance for non-opaque minerals and facetted gemstones are described. Quantitative measurements of other colour properties - colour constancy, bireflectance and reflection pleochroism - are described and defined. A study of some colour problems in ore minerals is made. Tables of colour values and spectral reflectivity data for 130 ore minerals are given, and these values are also presented in colour diagrams. The uses of quantitative colour values and colour diagrams are explained with examples.
Download or read book Quantitative Measurements of the Optical Properties of Opaque Minerals written by Peter Robert Simpson and published by . This book was released on 1965 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Elements of Optical Mineralogy An Introduction to Microscopic Petrography written by Alexander N. Winchell and published by Bronson Press. This book was released on 2007-03 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: ELEMENTS OF OPTICAL MINERALOGY AN INTRODUCTION TO MICROSCOPIC PETROGRAPHY BY ALEXANDER N. WINCHELL, Doct. Univ. Paris Professor of Mineralogy and Petrology, University of Wisconsin SECOND EDITION, SECOND PRINTING PART III. DETERMINATIVE TABLES WITH A COLORED CHART AND Two DIAGRAMS NEW YORK JOHN WILEY SONS, INC. LONDON CHAPMAN HALL, LIMITED 939 COPYRIGHT, 1929, 1939 BY ALEXANDER N. WINCHELL All Rights Reserved This book or any part thereof must not be reproduced in any form without the written permission of the publisher. PRINTED IN U. 8. A. PRESS OF BRAUNWORTH A CO., INC. BUILDERS OF BOOKS BRIDGEPORT. CONN. PREFACE TO THE SECOND EDITION SECOND PRINTING DURING the ten years since the publication of the second edition of these tables many new minerals have been described. About fifty of these are included in the third edition of Part II, which was published in 1933, while nearly seventy are of more recent date. The author has attempted to include in supplementary tables in this printing all the new minerals which seem to be well established and adequately described as to their optical properties. Unfortunately it has not been feasible to incorporate them in the main tables, but this is probably not a very serious difficulty since the minerals in question are all very rare. It is hoped that the use of colored paper for the table III classify ing minerals on the basis of their color and pleochroism in thin section will make it easy to find the various tables quickly and con veniently. In the preparation of this printing the author has benefited by the assistance and encouragement of his wife, Florence S. Winchell. ALEXANDER N. WINCHELL MADISON, WISCONSIN March, 1939 PREFACE TO THE SECOND EDITION Or course tables prepared for the determination of minerals by optical methods should be based on the chief optical properties of the minerals. However, it is not at all obvious just which optical prop erty should be used first in classifying the minerals. After several attempts to combine the most important properties in one table so that more than one of them could be used first, it seemed wiser to simplify the arrangement by making separate tables for each important property. In addition to the tables which are given, tables might be prepared based primarily upon the optic angle, optic sign, or extinction angles. However, the practical groups based upon optic angle or optic sign are too few in number to be satisfactory, while extinction angles are almost useless in distinguishing between tetragonal, hexagonal and orthorhombic minerals. Thus it comes about that the chief tables which are given are based upon refringence, or birefringence, or color and pleochroism. As the dispersion methods of determining minerals come into wider use the table based upon dispersion will become more complete and more useful. It is a pleasure to acknowledge that these tables have been improved as a result of thoughtful constructive criticism of the first draft by Professor F. F. Grout of the University of Minnesota the writer has also had the advantage of an opportunity to examine copies of determinative mineral tables prepared by Professor Grout and others prepared by Professor D. J. Fisher of the University of Chicago. He has also benefited notably by frequent consultations with Professor R. C. Emmons of the University of Wisconsin. Plate II, based on refringence and birefringence, has been prepared along lines suggested by Professor C. O. Swanson of the Michigan College of Mines and Professor R. H. B. Jones of the State College of Washington. ALEXANDER N. WINCHELL. MADISON, WISCONSIN, January, 1929 vu CONTENTS PAGE INTRODUCTION i TABLE I. OPAQUE MINERALS 7 TABLE II. BIREFRINGENCE OF MINERALS 10 SUPPLEMENTARY TABLE II. BIREFRINGENCE OF MINERALS 76 TABLE III. COLOR OF MINERALS go SUPPLEMENTARY TABLE III. COLOR OF MINERALS 130 TABLE IVA. REFRINGENCE OF ISOTROPIC MINERALS 136 SUPPLEMENTARY TABLE IVA. REFRINGENCE OF ISOTROPIC MINERALS 141 TABLE IVB...
