Advanced Text Igneous Sedimentary Metamorphic Fossils Text Igneous (9) Text PRR-49813 (Rhyolite) Text PRR-5935 (Diorite) Text PRR-5933 (Granite - porphyritic) Text UN-74 (Pumice) Text PRR-24237 (Andesite) Text PRR-5013 (Granite - equigranular) Text PRR-26543 (Basalt) Text PRR-5941 (Gabbro) Text UN-73 (Obsidian) Text Sedimentary (7) Text UN-224 (Limestone [Ohio]) Text PRR-33311 (Sandstone) Text UN-225 (Bituminous Coal [Kentucky]) Text UN-227 (Anthractic Coal [Pennsylvania]) Text PRR-5213 (Shale) Text UN-209 (Conglomerate) Text PRR-16429 (Limestone) Text Metamorphic (6) Text PRR-26271 (Quartzite) Text PRR-5287 (Mylonite) Text PRR-5283 (Schist) Text PRR-14105 (Marble) Text PRR-5285 (Gneiss) Text PRR-947 (Slate) Text Fossils (13) Text UN-221 (Crinoid Stems) Text PRR-4891 (Rotularia) Text UN-215 (Clams) Text UN-222 (Brachiopods) Text UN-216 (Horn Coral) Text UN-218 (Snails) Text UN-99 (Petrified Wood) Text UN-219 (Cephalopods) Text UN-223 (Trilobite) Text UN-217 (Colonial Coral) Text PRR-4901 (Ammonite) Text UN-178 (Fossil Leaf) Text UN-220 (Bryozoans)