THE VIRTUAL EGG CARTON

Click on a rock or name to see a larger picture and description.
Rock descriptions are modified from Minnesota at a Glance--Common Minnesota Rocks.

limestone sandstone agate gabbro basalt quartzite mica schist granite iron-formation taconite ore and pellets greenstone gneiss limestone sandstone agate gabbro basalt quartzite mica schist granite taconite ore and pellets iron-formation greenstone gneiss limestone basalt schist taconite ore and pellets greenstone sandstone and sand gabbro quartzite granite agate iron-formation limestone agate basalt schist taconite ore and pellets greenstone sandstone and sand gabbro quartzite granite gneiss iron-formation gneiss