ROCK LIST
| IGNEOUS ROCKS
1-1 Andesite porphyry 1-2 Rhyolite 1-3 Gabbro 1-4 Basalt I- 5 Granite 1-6 Diorite 1-7 Obsidian 1-8 Pumice 1-9 Pegmatite |
| SEDIMENTARY ROCKS
S-1 Limestone S-2 Coal S-3 Sandstone S-4 Arkose S-5 Conglomerate S-6 Breccia S-7 Shale S-8 Graywacke |
| METAMORPHIC ROCKS
M-1 Slate M-2 Phyllite M-3 Schist M-4 Gneiss M-5 Quartzite M-6 Marble M-7 Serpentinite |