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Tourmaline
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* A TIFF file is a high-resolution (240 dpi) format. TIFF files should be used only if you are printing the clipart. Do NOT use TIFF files for clipart that will displayed on a computer screen. Click here for help downloading and using TIFF files. File Name: tourmaline_20275
Description: "Tourmaline crystals show the forms of the Rhombohedral Class but with hemispherical development. They are also commonly characterized by the presence of three faces of a triangular prism." — Ford, 1912
Source: William E. Ford Dana's Manual of Mineralogy (New York: John Wiley and Sons, Inc, 1912)44
Keywords: tourmaline, mineral, crystal, geology, geometry
Copyright: 2009, Florida Center for Instructional Technology. See license.
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