| This publication has been compiled as a general reference for the collector. Where to look, what to look for, and how to find and identify geodes in the tri-stage area of Iowa, Illinois, and Missouri. It contains descriptions, crystal shapes, forms of the mineral habits and a listing of the inclusions which occur in and on the interior cavities of geodes. Identification charts which include twenty four of the mineral inclusions, many of the general geological means of identification; Color, luster, streak, common occurrence, cleavage, fracture, hardness, crystal shapes, and other identifying properties. All of which can serve to assist the collection and hobbyist alike in the identification of Geodes, the minerals and crystallized contents. |
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