You can find individual rock pages in the Rocks dropdown menu at the top of the screen. If that doesn’t work, here’s an alphabetical list for your convenience.

Andesite
Arkose
Banded iron formation (BIF)
Basalt
Blueschist
Breccia
Coal
Conglomerate
Diorite
Dolostone
Eclogite
Gabbro
Gneiss
Granite
Graywacke
Limestone
Marble
Migmatite
Peridotite
Phyllite
Pyroxenite
Quartzite
Rhyolite
Sandstone
Schist
Serpentinite
Shale
Slate