Gem Care - Fred Ward Gem Book Author:Fred Ward, Charlotte Ward This all-new edition of Gem Care includes care and cleaning tips and advice for all the major gemstones as well as for dozens of other gems and minerals. Beautifully illustrated with all-color photographs, it is a pleasure to view and to read. Included in this new edition are a glossary, index, and Mohs hardness table for gems. Gem Care makes a ... more »fine addition to your jewelry collection as well as to the other books in the Fred Ward Gem Book Series, all listed on Amazon.« less