Understanding Our Earth's Rocks and Minerals

Complete catalog record
Describes the three classes of rocks--igneous, sedimentary, and metamorphic--and relates them to the natural conditions that produced them. Explains the varied uses of rocks and minerals in their natural state, including basalt, pumice, granite, limestone, sandstone, marble, and others.

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  1. 16mm Filmography (legacy record) — title, year, creator, length, catalog record