記き載さい岩がん石せき学がくMeaningsNoun1. petrography; description and classification of rocksKanji used記regularly record載appear in print岩boulder石stone学studyComposed of記き載さいmention (in a document); record; entry; statement; listingNoun岩がん石せきrockNoun学がくlearning; scholarship; study; erudition; knowledge; education; study of ...; -ology; -icsNoun