"Written especially for the opal collector and gemmology student, as well as for the opal miner or visitor to the opal fields, this bokk names every recorded op

This book is the latest in the popular Fred Ward Gem Book Series. The full-color photographs give the buyer and enthusiast all the information needed to underst

Readers will find fascinating details about the discovery, whereabouts, and value of famous opals, from such classic specimens as the Burning of Troy Opal to th