marble
coal
granite
quartzite
slate
phylite
gniess
amphibolite
hornfels
serpentinite
gabbro
eclogite
migmatite
diorite
basalt
obsidian
scoria
andesite
dacite
peridotite
tuff
shale
breccia
limestone
chalk
chert
siltstone
argillite
claystone
graywacke
mudstone
turbidite
schist
flint
rhyolite
pumice
sandstone
pegmatite