Provides an up-to-date introduction to the subject of ore microscopy, emphasizing the basic skills required for the study of opaque minerals in polished sections. Describes the modern ore microscope, the preparation of polished and polished-thin sections of opaque minerals and ores, and the identification of these minerals using both qualitative techniques and the quantitative methods of reflectance and microhardness measurement. Later sections discuss the interpretation of textural intergrowths of ore minerals and the determination of their paragenesis, along with the examination of coexisting minerals for determining their physio-chemical conditions of formation. Appendices contain the data necessary to identify approximately 100 of the more common ore minerals and those frequently encountered by the professional scientist.

"This book is a very detailed ore microscopy atlas in colour, containing observations for some 430 minerals (mostly opaques and a few gangue minerals). Its main emphasis lies on the display of the respective mineral's most important optical properties (shown in up to 5 high-quality photos for each mineral with scale). The colour plates are supplemented by brief tabulated data, such as name and synonyms, mineral group, chemical composition, major formation environment, reflection colour/shade, and reflectivity. Wherever reflectivity data were not available, the respective value was estimated on the basis of some 4 common/standard minerals of a similar colour or grey shade."--BOOK JACKET.

Invaluable reference for geologists, mineralogists lists and describes about 500 ore minerals according to criteria of "hardness" and "reflectance." Indispensable identification aid. Bibliography.

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

reviewers, and reported by users of the earlier This third edition (or issue) of the Quantitative Data File for ore minerals (QDF) of the Commission on editions. The result is that 510 species and 125 are Mineralogy of the International Mineralogical compositional or structural variants, or varieties, of Association (COM-IMA) is published, with the species, are represented in QDF3. A large number of support of the Natural History Museum, London, by the entries include data collected from the type Chapman & Hall. It has been greatly revised and specimen of a mineral: these include data extracted enlarged and now includes graphs of the reflectance from the published literature. In this respect, QDF3 spectra for all of its entries. These have been differs from earlier editions. included in response to requests from users of the We have also revised and simplified the notes earlier editions. Also included, for those users concerning X-ray data: no longer are the strongest unfamiliar with the application of such spectra to lines in the powder diffraction pattern quoted, nor mineral identification, are introductory notes, are cell dimensions generally given. Instead, it was illustrated with examples of R spectra. decided to refer to data from the original description, The 635 data sets, which are arranged or to data in the PDF of the JCPDS.

This book offers a guide to the microscopic study of metallic ores with reflected light. It combines a rigorous approach with an attractive and easy-to-follow format, using high-quality calibrated photomicrographs to illustrate the use of color for ore identification. The ore identification methodology is updated with systematic color analysis and the application of new multispectral reflectance datasets, which offer an efficient tool for automated ore characterization. In addition, the first volume of this two-part work discusses the essential gangue minerals. Readers will gain familiarity with the method as they follow its application to over 200 selected minerals, comprising the most important ore (≈150) and gangue (≈50) minerals, which are described in the text. Each entry includes an explanatory text with corresponding color photomicrographs for each of the most common microscope settings, preceded by a table summarizing the ore’s main properties, and followed by spectral information in the visible and near-infrared ranges (specular reflectance values from 370 to 1000 nm). Some uncommon, strategic ores, e.g. columbotantalite (“coltan”) and monazite, receive particular attention or are described for the first time with reflected light. Lastly, the book presents a learning strategy for beginners and students. The approach is essentially practical, focusing on the development of observation skills, including self-checking through proposed practical tasks. In addition, the traditional use of determinative tables is critically reviewed and updated. This book is part of a two-volume work. The second volume focuses on intergrowths/textural analysis and interpretation, as well as computer-vision-based automation and applications to ore processing/geometallurgy. The intended audience includes professionals and engineers dealing with mineral resources, as well as postgraduate students. The book also provides lifelong learning support for freelancers and a valuable reference resource for practical university teaching.

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