Barite
Basalt
Bituminous Coal
Conglomerate
Copper Ore
Fossil
Gabbro
Gneiss
Granite
Gypsum
Halite
Iron Formation
Lead Zinc Ore
Limestone
Mt-Pleasant Ore
Oil Shale
Peat
Pyrite
Quartz
Rhyolite
Sandstone
Slate
Stibnite
Sylvinite