"Human Biology Lab Activities&amp"

Gray and poorly sorted, with a gritty texture.

Useful for weathering and erosion, soil formation, porosity and permeability, or other general earth science labs.

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

Study the Formation of Different Igneous Rocks

Indicative of Various Sedimentary Formation Processes

Altered Igneous and Sedimentary Rocks are Clearly Represented

Coarse-grained, with microcline, biotite and horblende phenocrysts.

Gray to white, coarse crystalline, carbonate rock.

Shiny black volcanic glass showing conchoidal fracture and some spherulites.

Glassy; most specimens float in water.

Fightly cemented, medium-to-coarse quartz grains.

Define and compare ways organisms have been preserved.

Grayish black trap rock.

Lustrous, black 'hard coal'.

Introduce your students to rocks formed from the cooling of magma and lava.

Introduce your students to rocks formed from deposition of sediment.