Carolina Biological Supply Company Introduction to Rocks Poster

24 x 36". What a great resource for earth science classes! This poster is divided into 3 sections for each type of rock - igneous, sedimentary, and metamorphic - with illustrations to show how each is formed and a dozen representational specimens per type. A bonus section shows and explains some of the more specialized rock forms such as geodes, concretions, agates, and thunder eggs. Laminated.