Obsidian
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- Picture Identification Guide for Polished Stones and Tumbled Rocks Provided By
- A Location Guide for Rock Hounds in the United States
- Investigation of the Crystallinity of the Modifications of Silica by Their IR-Reflectance Spectra A. Banerjee Infrared Reflectan
- December 2017
- A Study of Lapis Lazuli in the Formative Period of Egyptian Culture: an Approach in Terms of Culture Contact
- Mule Creek Volcanic Vent, the Rhyolite of Potholes Country, and Obsidian Ledges, Gila National Forest, Southwestern New Mexico
- Leopard Skin Jasper Gemstone Meaning - There Are Many Types of Jasper; It Is One of the Oldest Known Gemstones
- Inground Vinyl Liner USA Brochure
- Non-Destructive Pxrf on Prehistoric Obsidian Artifacts from the Central Mediterranean
- Crafting Jewelry and Social Identity in Minoan Crete
- Solubility and Stability of Beryl in Granitic Melts
- Gem Stones in Washington
- Turquoise in the Life of American Indians
- The Distribution of Geologic and Artifact Obsidian from the Silver Lake/Sycan Marsh
- Small Sites Analysis on the Hog Ranch Gold Project Northern Washoe County, Nevada
- The Antimonial Silver-Lead Veins of the Arabia District, Nevada
- Black Obsidian Magickal Properties
- Fair Report by Anne Schafer, Coordinator