argentotennantiteargiaargilizationargillaceous eartargillaceous hematite or hematite or hematiteargillaceous limestone or limestone or limestoneargillaceous sandstoneargillationargille scaglioseargillicargillic alterationargillic zoneargillierargilliferousargilliteargillo or pebblyargilloarenaceousargilloosargillyteargiloargilolitearginineargitanarglezargosargument of perigeeargutiteargyroditearhbaritearidarid cyclearid erosionarid soilaridic moisture regimearidityaridsoil or aridisol or aridisolarielariesariraristaaristatearistotle’s lantern or aristotle or aristotle or lanternarithmetic mean or average or averagearizona rubyarkesinearkosearkose or quartzitearkosic conglomerate or conglomerate or conglomeratearkosic graywackearkosic limestone or limestone or limestone
