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ACKNOWLEDGMENTS
We thank William W. Besse for creating the index map and redrawing the geologic map of the Brown Derby No. 1 pegmatite area. John Rakovan and Malcom Southwood are also appreciated for their reviews and comments that improved the manuscript. Robert “Bob” Spomer, Robert Michael “Mike” Perkins, and Rudy Bolona are thanked for providing mineral photos and information on the pegmatite mineralogy.
Additional information
Notes on contributors
Philip M. Persson
Philip M. Persson is a mineral dealer specializing in worldwide attractive minerals and rare-element and rare-earth minerals.
Mark Ivan Jacobson
Mark Ivan Jacobson, a consulting editor of Rocks & Minerals, specializes in pegmatites and their histories of exploitation.
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