Opals - Fred Ward Gem Book Author:Fred Ward This is a revised edition of OPALS and part of the Fred Ward Gem Book Series. The lavishly illustrated all-color book continues in the quality tradition of the other gem eight books in the series. Opals from Australia, Mexico, the USA and other sites are included as are mining, processing, sales, and care. This is a compact, beautiful, and infor... more »mative coverage of this fascinating gemstone.« less