02882cam a22003253u 450000100060000000300070000600500170001300600020003000700050003200800410003704000110007804100170008905000070010610000380011324500300015125000270018126400510020830000470025933600260030633700260033233800360035850000310039450802120042552016720063753400730230965300360238285600760241885600430249499900190253776003UtSlPG20260610134747.0mcr n260607r20251913utu|||||o|||||||||||||| d  aUtSlPG 7aen2iso639-1 4aQE1 aLuquer, Lea McIlvaine,d1864-193010aMinerals in rock sections  aFourth revised edition 1aSalt Lake City, UT :bProject Gutenberg,c2025  a1 online resource :bmultiple file formats  atextbtxt2rdacontent  acomputerbc2rdamedia  aonline resourcebcr2rdacarrier  aRelease date is 2025-05-02  aCharlene Taylor, Richard Tonsing and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive/Canadian Libraries)  a"Minerals in Rock Sections: The practical methods of identifying minerals in rock sections with the microscope" by Lea McIlvaine Luquer is a scientific textbook written in the early 20th century. The book is intended as a practical guide for students in technical and scientific schools, focusing on the identification of minerals within thin sections of rocks using petrographic microscopes. Its main topic is the practical, step-by-step observation and analysis of mineralogical and optical properties to aid in the accurate identification of minerals as they occur in rocks.  The opening of "Minerals in Rock Sections" begins with several prefaces, each tied to different editions of the work. These prefaces outline revisions made over time, highlight the book's focus on straightforward, essential facts for students, and justify the need for an English-language, less complex manual for beginners. The text then describes the organization of the book, providing a detailed table of contents that emphasizes both theoretical background in optical mineralogy and hands-on laboratory procedures. Early chapters introduce fundamental concepts in optics as applied to mineral identification, the structure and use of the petrographic microscope, and practical observational techniques, such as recognizing form, color, refractive index, cleavage, and inclusions. The beginning continues into the systematic explanation of how to analyze and distinguish minerals using various optical and microscopic methods, laying out clear conventions and detailed procedures for the technical study of minerals in thin rock sections. (This is an automatically generated summary.)  pOriginally published:cNew York: D. Van Nostrand Company, Inc., 1913  aPetrology -- Laboratory manuals4 uhttps://archive.org/details/mineralsinrockse00luquuoft/page/n9/mode/2up40uhttps://www.gutenberg.org/ebooks/76003  c116728d116728