Rock Specimens

This collection with rock types and associations with the North American continent contains 100 specimens with each group represented: igneous, metamorphic, and sedimentary. Specimens are approximately 1"" x 1"", number-coded in compartmented container.

Represents a Wide Range of Depositional Environments and Rock Textures

Study the Formation of Different Igneous Rocks

When minerals, rocks, and fossils cannot be accurately identified by macroscopic observation and testing, thin section slides can reveal the composition and structure of the specimens on a microscopic level.

Deformed pebbles in a metamorphased conglomerate. Large sawed and lacquered specimen.

Glassy; most specimens float in water.

Shows porphyritic texture in a fine dark matrix abundant large feldspar phenocrysts. Hand specimen.

Sawn and lacquered slab showing thinly bedded truncated layers in a well-cemented sandstone. Large hand specimen.

Specimens To Supplement the Most Widely-Used College Lab Manual for Physical Geology

Fightly cemented, medium-to-coarse quartz grains.