gems, opal, Australia, black opal, white opal, boulder opal, opal nomenclature, opal history

Discover Opals is a field guide for anyone wanting to know more about this most mysterious and attractive gem stone. It is for the novice beginner as it takes the reader through most of Australia's famous opal fields but it is also a popular reference for established opal miners due to its in-depth treatment of this popular subject. It has geological indicators showing the newcomer where to start digging, light-hearted humourous stories and anecdotal snippets from the illustrious opal mining past in Australia. More than 500 colour photographs make the book interesting, magnetic reading.