Rock Identification quiz

obsidian

igneous, aphanatic, felsic, extrusive

pumice

igneous, vesicular, felsic, extrusive

basalt

igneous, aphanitic, mafic, extrusive

granite

igneous, phaneritic, felsic, intrusive

diorite

igneous, phaneritic, intermediate, intrusive

peridotite

igneous, phaneritic, ultramafic, intrusive

conglomerate

sedimentary, clastic, continental

sandstone

sedimentary, clastic, continental/marine

shale

sedimentary, clastic, marine

limestone

sedimentary, chemical/biochemical, marine

coal

sedimentary, biochemical, continental

rock salt

sedimentary, chemical, marine

slate

metamorphic, foilated, shale

phyllite

metamorphic, foilated, slate

schist

metamorphic, foilated, phyllite

gneiss

metamorphic, foilated, schist or granite

marble

metamorphic, non-foilated, limestone or dolostone

quartzite

metamorphic, non-foilated, sandstone