 | | Report (issue) | | Contents 4 Map: Notable Opal Localities 50 BY BRUCE PAUL GABER 6 The Opal Enigma: Science, History...FRAZIER 12 Classic Slovakia 14 Rainbows, Harlequins and Pins Afire: Play of Color in Opal BY MAX WEIBEL...WEIBEL Sparkling Opal in Ancient Bones: Precious Relics from the Age of Dinosaurs Facing Page: Robert A....vibrant with opal pattern and color. In this extreme close-up of a Lightning Ridge black opal, the field...approximately 3 mm wide. Opal courtesy Jenni Brammall BY ALEX RITCHIE 52 An Opal Glossary of Terms BY |  | | Book (volume) | | VOL.2 Bauer, Max Precious stones J FOX LAKE DISTRICT LIBRARY 2§| £ J3RAND AVENUE 60020 - PRECIOUS...Melanite, Topazolite . Tourmaline Opal Precious opal . Fire-opal Common opal . Turquoise . Bone-turquoise...486 488 488 488 489 CONTENTS Vll PAGE PAGE Agate (Onyx).511 Cat’s-eye . . . . Tiger-eye. . . 491... . 330, 338 cut Precious opal, rough : Australia 375, 382 Fire-opal, rough „ Brazil PLATE XVII...(Facing p. 512.) AGATE. Fig. a. „ 5. Fortification-agate : Oberstein 512, 513 Onyx-agate : Brazil. 512 |
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