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http://csd.unl.edu/agates/agatelexicon.asp
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Site Quote: "This lexicon and glossary of amorphous and cryptocrystalline silica gems have been designed to be used in conjunction with the Agate Bibliography, which was compiled to be used by researchers, hobbyists, historians, lapidaries and other individuals which have an interest in these stones. Numerous localities are listed here but this does not imply that the sites are available for collectors or collecting. Many of the sites are historic, depleted, are on private property or are protected by legal leases or claims and some are now on protected sites such as parks, nature preserves, or historic areas."
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http://csd.unl.edu/default.asp
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Site Quote: "The Conservation and Survey Division, the natural resource survey component of the School of Natural Resources, Institute of Agriculture and Natural Resources, University of Nebraska-Lincoln, is a unique, multi-disciplinary research, service and data-collection organization established by state statute in 1921. The Division's mission is to investigate and record information about Nebraska's geologic history, its rock and mineral resources, the quantity and quality of its water resources, land cover and other aspects of its geography, as well as the nature, distribution and uses of its soils."
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http://www.agateswithinclusions.com/
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Agates with Inclusions: Sagenite, Plume & More
Site Quote: "My goal is to depict a comprehensive photographic display of agates with inlcusions from known agate fields. The agates pictured are in my own collection."
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http://www.obsidianlab.com/sourcecatalog/s_home.html
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World Obsidian Source Catalog
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http://www.mashell.com/~estrauss/pwoodfx.html
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Petrified Wood From Western Washington
How to identify Petrified wood and
Reference resources for information on Petrified wood
By Ed Strauss
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http://www.gemsociety.org/info/info.htm
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International Gem Society
Reference Library
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http://members.tripod.com/~WTompkins/index.html
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Bill Tompkins' Pacific Northwest Crystal Pages
Site Quote: "If crystals from the Pacific Northwest are what you are interested in, then we have something in common."
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http://orerockon.com/
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Tim Fisher's Ore-ROCK-On site
Site Quote: "The major feature of my home page is to provide a home for the FIRST, BIGGEST, and BEST Oregon Rockhounding page on the WWW, Ore-ROCK-On (OREgon ROCKhounds ONline) which features the rocks, minerals, and fossils, of Oregon (and some in Washington). These pages have lotsa way kewl rockhounding info and pics of my rocks!"
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http://www.acc.umu.se/~widmark/lwtrumld.html
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Alan Silverstein's tumbling pages
Site Quote: "A Fifty-Pound Truck-Tire Rock Tumbler: Specifications and Experiences"
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http://www.rocktumblinghobby.com/index.html
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WELCOME TO THE ALL FREE ROCK TUMBLING HOBBY SITE
Site Quote: "You can use this site to find out all you need to know about rock tumbling in general. I hope that both the beginner and experienced rock tumbling enthusiast will find the information herein useful, making your hobby more rewarding as time goes on."
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http://www.renorockclub.com/
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The Reno Gem and Mineral Society
Site Quote: "The Reno Gem and Mineral Society is a nonprofit corporation organized for the purpose of creating, developing, and encouraging interest in the rock, gem, and mineral hobbies as well as locating and identifying various material through field trips."
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http://www.dustdevilmining.com/Default.asp
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The Dust Devil Mining Company
Site Quote: " Oregon sunstone is a feldspar crystal formed in molten lava and then discharged onto the surface of the earth by a volcano. As the lava weathers away or is broken up the crystals are released."
Popular Fee-Digging Mine
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http://www.eugeneastro.org/
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Eugene Astronomical Society
Rocks in Space
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