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Earth Materials Resources

ERS 222S - ROCK FORMATION

Geologic Glossary D through I

Igneous Rock Identification Exercise

Nearctica - Geology - Rocks and Petrology

Petrology

Quiz on Rocks Overview and Igneous Rocks

Sedimentary, Metamorphic, Igneous Rock Types [Athro, Limited Geology]

soils

The 3 basic rock types