"Human Biology Lab Activities&amp"

Altered Igneous and Sedimentary Rocks are Clearly Represented

Gray to white, coarse crystalline, carbonate rock.

Fightly cemented, medium-to-coarse quartz grains.

Lustrous, black 'hard coal'.

Introduce your students to rocks formed metamorphism of other rocks.

Quartzite is hard, non-foliated rock formed from metamorphosed quartz sandstones.

Pink Gneiss is foliated pink and black bands of biotite.

Slaty metamorphic rock containing hematite giving it its red color.

Gray metamorphosed shale showing "slaty cleavage".

Gray to white metamorphosed carbonate rock.

Soapstone is a talc-schist primarily composed of talc.