Shows and describes the characteristics of over two hundred gems and minerals

With 300 entries, Minerals and Gemstones includes a colour photograph, and a key information table including specifications such as the colour, lustre, streak, hardness, specific gravity, cleavage, habit and crystal system for each type of mineral and gemstone featured.

Contains descriptions and photographs of approximately six hundred minerals, rocks, and meteorites, providing information about the history, origin, structure, composition, properties, classification, and location of each specimen.

"Gems and Gemstones" features nearly 300 color images of cut gems, precious and semiprecious stones, gem-quality mineral specimens, and fine jewelry to be unveiled in the new Grainger Hall of Gems at the Field Museum in Chicago.

The psychic readings of Edgar Cayce contained insightful information about the properties and value of a variety of gems, stones, minerals, and other elements. Author Shelley Kaehr, Ph.D., whose own background included the study of gemstones, examines this material by delving into the history and makeup of these magical substances so often mentioned by Cayce. In her book, Kaehr shares with us the wonders of the mineral kingdom, and how and why each stone or mineral is different and reacts differently to various people. Includes an intuitive self-discovery process to finding out which of these powerful minerals works best for you.

From glittering gemstones to fascinating minerals and fossils, this incredible reference book is a stunning celebration of the Earth s buried treasures. Specially commissioned photography captures the essence and beauty of over 450 superb specimens, while lively and informative text describes the characteristics of each and its unique and changing relationship to humankind through the ages. Organized by rock classes and chemical groups, each rock, mineral, and fossil entry contains a photograph of the specimen together with lively, wide-ranging text describing its qualities and history of use. In addition, a detailed, at-a-glance reference panel provides key data for identification and classification.

Prospecting and collecting trips; Tools and how to use them; Rock classes and how to recognize them; How mineral deposits form; Field features of mineral deposits; Collecting practices; Preparation of specimens; Storage and exhibit; Marketing mineral specimens and gemstones.