This is the first published guide to Herkimer diamonds, striking quartz crystals, that includes all important aspects of interest to anyone curious about this unique form of the mineral quartz. Over 210 vivid color images of important specimens, associated minerals, and field shots illustrate the informative text and enhance the reader's experience. The text includes the most recent scientific information regarding Herkimer diamonds' geological and mineralogical history, where they can currently be found, descriptions of important historic locations, and the inclusion of noteworthy peripheral...