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

頁数[peejisuu] number of pages
頁岩[ketsugan] shale
頁付け[peejizuke] pagination
頁の裏[peejinoura] overleaf

余白頁[yohakupeeji] blank page
石油頁岩[sekiyuketsugan] oil shale
油頁岩[yuketsugan] oil shale
含油頁岩[ganyuketsugan] oil shale