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Opal Identification & Value No Two Opals are Alike... It Pays to Know the Difference! A complete and accurate methodolgy to properly identify and apply characteristics that create an opal's identity and value. Follow along step-by-step and you, too, can become an expert.     ISBN: 978-0-9625311-8-7    $49.95 plus $6.00 s&h. Item #B0050 Price $49.95

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