The Constitution of Marcasite and Pyrite is a book written by George William Plummer in 1910. This book is a comprehensive study of the physical and chemical properties of two minerals, marcasite and pyrite. The author explores the crystal structure, optical properties, and chemical composition of these minerals. He also discusses the geological occurrences of marcasite and pyrite and their uses in industry. The book is written in a scientific and technical style, making it suitable for students, researchers, and professionals in the field of mineralogy. This book serves as a valuable resource for anyone interested in the study of minerals and their properties.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.