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Gemstones And Other Unique Minerals And Rocks Of Wyoming: A Field Guide For Collectors (Reprinted 20
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Gemstones And Other Unique Minerals And Rocks Of Wyoming: A Field Guide For Collectors (Reprinted 2014)
Hausel, W.D., and Sutherland, W.M., 2000, Gemstones and other unique minerals and rocks of Wyoming—A field guide for collectors: Wyoming State Geological Survey Bulletin 71, 268 p. (Reprinted 2014.)
