A Handbook of Minerals, Crystals, Rocks and Ores

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"The book is divided into four sections, minerals, crystals, rocks and ores. It tries to tell why every combination of chemicalcompounds cannot result into a naturally occurring mineral. The fourth and fifth chapters deal with Properties of Minerals, physical and optical. The chapters describe various physical properties that are helpful in the identification both in hand specimens and as thin section under the microscope. These two chapters are adequately aided with a number of illustrations, photographs and photomicrographs to bring home the point. Chapter five deals with classification of minerals and their occurrence and forms a prelude to the next two chapters on descriptive mineralogy. Important silicate and non silicate minerals are described in chapters eight and nine. A brief description of mineral uses is dealt with in both descriptive mineralogy as well Section D on mineral deposits, however, the last chapter, Mineral uses presents an overall picture and will be interesting as well as educating to students and even general readers.Section B is devoted to crystals and crystallography. Chapter one introduces the subject while chapter two presents basic crystallographic elements. Chapter three deals with the main six crystals systems while also giving a preliminary idea about stereographic projection and x-ray crystallography.Section C covers petrology, beginning with introduction to science of petrology, rock nomenclature. Chapter two is devoted to the study of igneous rocks, including their forms, composition, textures, structures, classification and description. The last section D is what geology is all about for a man on the street and its significance in nation building--the Ore minerals. It begins with what ore is and its place in human affairs as a well as presenting the important terminology in economic geology.