Datch and his band 'The Pack' are now big celebrities. They not only have the fame from their music but also from saving the president of the planet. While goin

Introducing the inherent properties of dazzling selection of gems, gemologist Raymond Walters describes how each stone is formed and its key properties, what be

Gemstones and crystals are as powerful as they are beautiful -- and harnessing that power is as easy as opening this book. In this entertaining and enlightening

Stunning color photographs highlight this study of the history, science, mining, and cutting of gemstones