A Field Guide to Australian Opals by Barrie O’Leary ( Signed Copy)


From the cover: “Australian opals are the most beautiful and sought-after multicoloured gemstones in the world, because of all the known precious stones only an opal can show the complete range of spectral hues in glorious balance. The fascinating subject of Australia’s premier gem is opened up to the reader in this practical and authoritative field guide. Written especially for the opal collector and gemmology student, as well as for the opal miner or visitor to the opal fields, this book names every recorded opal deposit in Australia and pinpoints every location on concise geological maps.

The text clarifies in understandable terms the many mineralogical, gemological, and commercial complexities of the opal gems-tone and explains the scientific factors involved in opal formation.

The author traces the history of the Australian opal industry and shows that, although it has an annual turnover of tens of millions of dollars, it is a remarkably casual, disorganised, and unoriented business operation.

He shows the reader how to assess the value of opals and gives a comprehensive description, with full-colour photographs, of all the main opal patterns.”

Only 1 left in stock


A hard cover edition with turquoise boards, white lettering and unclipped, illustrated dust jacket. Signed and dedicated on the front inside page in black ink by the Author. Colour photographs throughout, black and white maps and tables. There is some slight rubbing to the extremities of the dust cover and spine of the book. Some foxing and toning throughout but the text and illustrations are clear and legible.

Publisher: Rigby Limited, Australia.

Publication Date: 1977.

For more details please email info@gertrudeandalice.com.au


Additional Information
Weight 0.480 kg
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