Respuestas

2014-02-16T19:18:16+01:00
Sedimentary: coal, rock salt, limestone, breccia, oil shale, chert.
Metamorphic: phyllite, amphibolite, gneiss, quatzite, hornfels, marble, slate.
Igneous rock: pegmatite, andesite, peridotite, basalt, diorite, pumice, granite, obsidian.