一枚岩[ichimaiiwa] monolith
火山岩[kazangan] volcanic rock
火成岩[kaseigan] igneous rock
かこう岩[kakougan] granite
岩塩[ganen] halite

岩屋[iwaya] cavern
岩角[iwakado] edge or corner of a stone
岩間[iwama] among rocks
岩山[iwayama] rocky mountain

開鑿[kaisaku] excavation
円鑿[marunomi] (a) gouge
鑿井[sakusei] well drilling
鑿岩機[sakuganki] rock drill
掘鑿[kussaku] digging out

穿鑿[sensaku] scrutiny
斧鑿[fusaku] lucubration
平鑿[hiranomi] flat chisel
鎬鑿[shinoginomi] chisel for making dovetail joints