2140 - WASHINGTON SCHOOL COLLECTION - 40 SPEC.

One of our most popular kits! Includes specimens in the following areas: rock-forming minerals, ore-forming minerals, industrial minerals, and igneous, sedimentary and metamorphic rocks. Includes 40 number coded specimens, 1 1/2" X 2". Comes in a compartmented container. Grades 5-12. Geology is a required STEM subject.