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Are you Donald Kasper, author of the books below?
A Student Study Guide on Agate and Geode Formation by Donald Kasper A Geologic and Inclusion Study of the Lake Superior Agates by Donald Kasper The Metaphysical and Shaman Stones— An Introduction to their ... by Donald Kasper A Geologic and Inclusion Study of the Fairburn and Dryhead Ag... by Donald Kasper A Student’s Guide to Identifying Mesozoic to Recent North Ame... by Donald Kasper A Geologic and Inclusion Study of the California Coastal Agat... by Donald Kasper A Geologic and Inclusion Study of the Keokuk, Iowa, Missouri,... by Donald Kasper A Southwestern Field Guide to the Agates, Jaspers, and Opals,... by Donald Kasper A Model of Mineralogical Infrared by Donald Kasper


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