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Agates of Lake Superior: Stunning Varieties and How They Are Formed
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About Agates Of Lake Superior: Stunning Varieties And How
Product Description The definitive book on Lake Superior's agates is here. If you're a casual rock collector, you will find Agates of Lake Superior fun, interesting and beautiful. If you're a more advanced hobbyist, you will appreciate this professional and scientific resource. The book provides a thorough examination of Lake Superior's strange and unique agate varieties, as well as a critical look at agate formation theories, tips on how to find and identify agates, where to look for them and how collectible your agates may be. About the Author Dan R. Lynch has a degree in graphic design with emphasis on photography from the University of Minnesota Duluth. But before his love of the arts came a passion for rocks and minerals, especially agates, developed during his lifetime growing up in his parents’ rock and mineral shop in Two Harbors, Minnesota. Combining the two aspects of his life seemed a natural choice and he enjoys researching, writing about, and photographing rocks and minerals. Working with his father, Bob Lynch, a respected veteran of Lake Superior’s agate collecting community, Dan writes and produces their series of rock and mineral books and field guides. Dan’s meticulous research allows him to create a relatable text that helps amateurs “decode” the complex and sometimes unapproachable sciences of geology and mineralogy. He also takes special care to ensure that his photographs compliment the text and always represent each specimen exactly as it appears in person. He currently works as a writer and mineral photographer in Bellingham, Washington, with his beautiful fiancée, Julie. Bob Lynch is a lapidary and jeweler living and working in Two Harbors, Minnesota. In 1973, he sought more variety in the gemstones used in his jewelry, so he began working with and polishing rocks and minerals. When he moved from Douglas, Arizona, to Two Harbors in 1982, his eyes were opened to the incredible beauty of Lake Superior’s agates and he quickly became an avid collector. In 1992, Bob and his wife Nancy, whom he taught the art of jewelry making, acquired Agate City Rock Shop, a family business founded by Nancy’s grandfather, Art Rafn, in 1962. Since the shop’s revitalization, Bob has made a name for himself as a highly acclaimed agate polisher and as an expert resource for curious agate collectors seeking advice and specimen appraisal. Now, the two jewelers keep Agate City Rocks and Gifts open year-round and are the leading source for Lake Superior agates, with more on display and for sale than in any other shop in the country. Excerpt. © Reprinted by permission. All rights reserved. ADHESIONAL BANDED AGATE Classic, concentric banding and alternating colors make this the most popular agate variety Characteristics: Exhibits classic agate appearance; layers within layers create multiple bands of colors and fill the vesicle entirely, though sometimes such agates have a central core of macrocrystalline quartz Synonyms: Fortification agate, wall-lining agate, common agate, classic agate, fort agate, zonally concentric banding Distribution: Adhesional banded agates are found anywhere in the Lake Superior agate’s usual range Rarity: Adhesional banded agates are one of the most common agate types Description: Adhesional banded agates are the quintessential agate. They are the primary concern of formation theorists and researchers, and are what most collectors think of when the word “agate” is mentioned. Because they consist entirely of agate banding, they are also often considered the “true” agates, and learning the secrets of their formation will likely result in an understanding of nearly all other agate varieties. As adhesional banded agates are the most common variety of agate, they therefore have dozens of names from all over the world. These agates are undoubtedly better known as fortification agates, a name they received because their banding often resembles the interior walls of a fortress. In 2004, Petránek s
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