This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Introduction to Optical Mineralogy and Petrography: The Practical Methods of Identifying Minerals in Thin Section With The Microscope and The Principles Involved in The Classification of Rocks

Edwards, M G

History

Legare Street Press

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Andesite Press

This early work on mineralogy and petrography is both expensive and hard to find in its first edition. It contains details on polarizing microscopes, mineral determination, igneous rock types, geological mapping and much more. This is a fascinating work and is thoroughly recommended for anyone interested in geology. Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.

Introduction To Optical Mineralogy And Petrography - The Practical Methods Of Identifying Minerals In Thin Section With The Microscope And The Principles Involved In The Classification Of Rocks

Science & Math

Earth Sciences

Camp Press

Originally published in 1916. INTRODUCTION - To Optical Mineralogy and Petrography The Practical Methods of Identifying Minerals in Thin Section With the Microscope and The Principles Involved in The Classification of Rocks - PREFACE: IN THE preparation of this volume the writer has attempted to gather together and systematize in a manner accessible for ready reference those facts which are essential to a field geologist or to a mining engineer in an understanding of the fundamental principles involved in the classification and identification of rocks. In the field, a preliminary classification is usually made by macroscopic means. However, it is often necessary to make a more careful classification by a microscopic examination of a thin section of the minerals comprising the rock mass. To do this successfully requires a knowledge of the application of light to crystalline substances. This volume differs from most of the reference and text books relating to this subject in that it incorporates in one volume the elements of optical mineralogy and the elements of petrography. In Part One, eight general operations for the determination of unknown minerals in thin section are described, prefaced by a short summary of the principles of optics which apply to the transmission of polarized light through minerals. Descriptions of fiftyeight of the most common of the rock-making minerals are given, special attention being given to the criteria for the determination of these minerals in thin section. Their form, cleavage, twinning, color, refringence, bi refringence, extinction angles, pleochroism, absorption, optical character, inclusions, alterations, occurrences, uses, and differentiation from similar minerals, are all discussed whenever applicable. An elementary knowledge of crystallography and descriptive mineralogy is assumed. In Part Two, the principles of petrography are discussed briefly. Attention is given to the classification and description of the more important igneous rock types. Following Iddings, Winchell, and other American petrographers, the symbols X, Y, and Z, are here employed in referring to the axes of ether elasticity, instead of the German a, b, and c, used in many text and reference books. This is done to avoid confusion, especially in conversation or discussion, with the crystallographic axes. 2 The writer is indebted to Professor Frank R. Van Horn for suggestions. Among the reference and text books most frequently consulted the writer wishes to acknowledge Winchells Elements of Optical Mineralogy, Johannsens Manual of Petrographic Methods, Luquers Minerals in Rock Sections, Rogerss Study of Minerals, Findlays Igneous Rocks, Kemps Handbook of Rocks, Ries and Watsons Engineering Geology, and Farrells Practical Field Geology. Cleveland, Olzio, Februarp, 1916. Contents include: INTRODUCTION. PAGE PART ONE. - OPTICAL MINERALOGY. CHAPTER 1 . - THE ELEMENTS O F OPTICS A ND THE APPLICATIO O N F POLARIZELDI GHT T O CRYSTALLINE SUBSTANCES .. .............................. 13 The Nature of Light - Isotropic and Anisotropic Media - Uniaxial and Biaxial Crystals - Index of Refraction - Double Refraction - Interference - Polarization. CHAPTER 2. - THE POLARIZINMGI CROSCOP A E N D ITS PARTS ...................................... 25 Microscope - Nicol Prisms - Condensing Lens - Cross Hairs - Stage - Mirror - Objective - Rertrand Lens - Ocular Micrometer - Ad j ustment Screws. CHAPTER 3 . - GENERALM ETHODS O F MINERALD E TERMINATION ............................... 33 1. By the General Physical Properties 2...

A young salamander named Alexander living in the Amazon River Basin joins his friends Airey the Butterfly and Terry the Tarantula for an unforgettable jungle adventure. Come along with Alexander and friends as they meet birds, monkeys, and other creatures, enjoy the beauty of the rainforest, and face danger along the way.  The first book in the World Adventurers for Kids Series, “Alexander the Salamander” is an illustrated story inspired by the authors’ visit to the Amazon in 2008. Fun for kids and adults alike, the story teaches children the importance of listening to teachers and other authority figures. The book is available to purchase as an e-book and in print.

Alexander the Salamander: A World Adventurers for Kids Book

Children's Books

Animals

CreateSpace Independent Publishing Platform

See the best price to sell, buy, or rent books by Edwards, M G. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Books by Edwards, M G

See the best price to sell, buy, or rent books by Edwards, M G. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Introduction to Optical Mineralogy and Petrography: The Practical Methods of Identifying Minerals in Thin Section With The Microscope and The Principles Involved in The Classification of Rocks

Introduction to Optical Mineralogy and Petrography: The Practical Methods of Identifying Minerals in Thin Section With The Microscope and The Principles Involved in The Classification of Rocks

Introduction To Optical Mineralogy And Petrography - The Practical Methods Of Identifying Minerals In Thin Section With The Microscope And The Principles Involved In The Classification Of Rocks

Introduction To Optical Mineralogy And Petrography - The Practical Methods Of Identifying Minerals In Thin Section With The Microscope And The Principles Involved In The Classification Of Rocks

Alexander the Salamander: A World Adventurers for Kids Book