Gems are bestowed with divine powers. They can perform miracles in worn in a proper way. This book provides you accurate knowledge about the use of right stone at suspicious time in a right way. The learned author has given details about composition, constituents, chemical properties and medicinal use of gems in this small but very useful book. Herein you will get information about precious, semi precious and inexpensive gems, their sources and formation, their correspondence with planets, their powers to protect from malignant influences of planets and warning about coming danger. In this book you will get very useful information about artificial gems and test of genuine gems It is equally useful for gem-wearers, astrologers and those who deal in gems. Your library will be proud to possess such a GEM. Revised Enlarged Edition.