Title: Ratio Correlation: A Manual for Students of Petrology and Geochemistry, Author: Felix Chayes
Title: Chrysoberyl Gemstones - A Collection of Historical Articles on the Origins, Structure and Properties of Chrysoberyl, Author: Various
Title: Beryl Gemstones - A Collection of Historical Articles on the Varieties, Origins and Properties of Beryl, Author: Various
Title: Rock and Gem: The Definitive Guide to Rocks, Minerals, Gemstones, and Fossils, Author: Ronald Bonewitz
Title: Earth Treasures, Vol. 1: Northeastern Quadrant, Author: Allan W. Eckert
Title: Topaz Gemstones - A Collection of Historical Articles on the Origins, Structure and Properties of Topaz, Author: Various
Title: Zircon Gemstones - A Collection of Historical Articles on the Origins, Structure and Properties of Zircon, Author: Various
Title: Iowa's Minerals: Their Occurance, Origins, Industries and Lore, Author: Paul Garvin
Title: A Peterson Field Guide To Rocks And Minerals, Author: Frederick H. Pough
Title: Earth Treasures, Vol. 2: Southeastern Quandrant: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, and West Virginia, Author: Allan W. Eckert
Title: Hope Diamond: The Legendary History of a Cursed Gem, Author: Richard Kurin
Title: A Field Guide to Gold, Gemstone and Mineral Sites of British Columbia Vol. 1: Vancouver Island, Author: Rick Hudson
Title: Mineral Treasures of the Ozarks, Author: Bruce L. Stinchcomb
Title: Emerald Gemstones - A Collection of Historical Articles on the Origins, Structure, Properties and Uses of Emeralds, Author: Various
Title: Garnet Gemstones - A Collection of Historical Articles on the Origins, Structure and Properties of Garnet, Author: Various
Title: Artificial Gemstones - A Collection of Historical Articles on the Production of Synthetic Gemstones, Author: Various
Title: Amber Gemstones - A Collection of Historical Articles on the Origins, Properties and Uses of Amber, Author: Various
Title: The Classification, Identification and Characteristics of Gemstones - A Collection of Historical Articles on Precious and Semi-Precious Stones, Author: Various
Title: Ruby Gemstones - A Collection of Historical Articles on the Origins, Structure and Properties of the Ruby, Author: Various
Title: Vitamins and Minerals Demystified / Edition 1, Author: Steve Blake

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