2149 - U.S.A. COLLECTION - 50 SPEC.

A sensational collection that reveals the varied geological specimens found in the United States. The collection includes representative specimens from each of the 50 States. The rock, mineral or fossil selected to represent that state is individually “keyed” for identification. The key also includes a useful fact and a geologic feature for each individual state. Specimen size 1” x 1”. Grades 3-12. Geology is a required STEM subject.