This colorful book offers you a window into the world of Mahatma Gandhi, one of the most amazing people of the twentieth century. You will learn about Gandhi’

Gem Identification Made Easy is the first and only book that explains in non-technical terms how to identify diamonds and colored gems, and how to separate natu

An easy-to-use book that shows how anyone can learn to identify most of the gems and synthetics found in the marketplace. This practical book is essential readi

A concise, systematic, yet comprehensive ``textbook'' treatment of the science. Examines origin, chemistry, crystallography, physical properties, and optical pr