Pocket Dictionary Of Common Rocks And Rock Minerals (1915) : Kessinger Publishing : 9781165523139 : 1165523132 : 10 Sep 2010 : The Pocket Dictionary Of Common Rocks And Rock Minerals is a reference book written by Collier Cobb and originally published in 1915. The book is designed to be a handy guide for geologists, students, and anyone interested in identifying and classifying rocks and minerals. It contains a comprehensive list of common rocks and minerals, along with their physical and chemical properties, geological formations, and uses. The book is organized alphabetically, making it easy to find specific entries. The author provides detailed descriptions of each mineral and rock, including their color, texture, hardness, and crystal structure. The book also includes illustrations and photographs of many of the rocks and minerals described. This pocket-sized guide is a valuable resource for anyone interested in geology, earth science, or mineralogy, and is still widely used today