These are top-notch rock and mineral collections. They are great for classrooms and for individuals who want samples of rocks and minerals they have yet to find for themselves.
This collection with rock types and associations with the North American continent contains 50 specimens with each group represented: igneous, metamorphic, and sedimentary.
A great introductory kit for studying the basic rock types. Includes five each of igneous, sedimentary and metamorphic rocks, activity guide, and magnifying glass.