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For the introduction of intrusive and extrusive igneous rocks. Provide a basis for understanding geologic processes such as volcanic activity.

Represents metamorphic rocks that have been reformed due to geologic processes usually associated with pressure and heat.

Contains sedimentary end products representative of the erosion and degradation processes that cause materials on the earth’s surface to become reconsolidated through compaction and precipitation.

This new edition is a revision of the previously published Geological Society of America (GSA) Rock-Color Chart prepared by the Rock-Color Chart Committee.

Keep your Stuff Dry!!!