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September-October 2013

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Mineral Mysteries: The Jacksons Crossroads Enigma, Wilkes County, Georgia

The amethyst locality in Wilkes County, Georgia, known as Jacksons Crossroads has been famous since 2005 because it has produced some of the most beautiful amethyst specimens ever found anywhere in the world (fig. 1). Most notable of these are the matrix pieces that feature vibrantly colored, perfectly transparent, large amethyst crystals perched upon a contrasting white matrix composed of small and elongated, essentially colorless, quartz crystals. Most of the collector pieces from this locality are greatly treasured because of the aesthetic pairing of these two forms of quartz (figs. 3, 4, and 5).

John S. White, a consulting editor of Rocks & Minerals, operates Kustos, a museum/collector consulting business. Now retired, he is the former curator-in-charge of the National Mineral and Gem Collection at the Smithsonian Institution.

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