Science Wiz - Metamorphic Rocks - Quartzite, Slate, Marble, Gneiss, Anthracite and Schist
Rocks -Metamorphic (6 types, 1 each of quartzite, slate, marble, gneiss, anthracite and schist). Great set to learn about rock identification. This set includes the rock samples only with no identification key. Ages 8 and up.