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Unformatted text preview: 3. Crystal (hexagonal) IV. What factors affect its value? A. Color B. Transparency V. Is it synthesized? A. Flame fusion 1. Auguste Verneuil 2. Low cost B. Pulling, flux, hydrothermal processes VI. Ruby simulants A. Red spinel/ balas ruby B. Tourmaline/ rubellite C. Red garnet VII. Conclusion A. General fact review (origins, value, types) B. Interesting facts References http://www.gemstone.org/gem-by-gem/english/ruby.html Ward, Fred. Rubies & Sapphires . Gem Book Publishers. 1998. TS755 R82 W37 1998 Hughes, Richard W. Ruby & Sapphire . RWH Publishing. 1997. QE391 C9 H84 1997...
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This note was uploaded on 03/27/2008 for the course GEO 331 taught by Professor Huifang during the Spring '07 term at University of Wisconsin.
- Spring '07