Andesite porphyry
Andesite porphyry
Anthracite Coal
Basalt
Beach sediment
Bituminous coal
Breccia
Breccia
Conglomerate
Conglomerate
Coquina
Dune sediment
Gabbro
Gneiss
Gneiss
Gneiss
Gneiss
Gneiss
Granite
Lignite
Limestone
Limestone
Marble
Obsidian
Outwash sediment
Peat
Pegmatite
Quartzite
Rhyolite
Schist
Scoria
Shale
Slate
Sandstone
Till
Talc schist
Welded tuff
RED = IGNEOUS

BROWN = SEDIMENTARY

BLUE = METAMORPHIC


© 2002, Prof. David Leveson