Visual Bank

Visual Rock Bank

This guide to the common metamorphic rocks includes one or more examples of each rock type in the classification chart.

Distinctly Foliated Rocks

Click image to enlarge.

slate

Image credit: James St. John

Click image to enlarge.

phyllite

Image credit: James St. John

Click image to enlarge.

schist

Image credit: James St. John

Click image to enlarge.

gneiss

Image credit: James St. John

Click image to enlarge.

metaconglomerate

Image credit: R. Weller, Cochise College

Distinctly Non-foliated Rocks

Click image to enlarge.

hornfels

Image credit: R. Weller, Cochise College

Click image to enlarge.

marble

Image credit: James St. John

Click image to enlarge.

quartzite

Image credit: James St. John