豊とよ羽は鉱こうじ字FuriganaAudioMeanings1nountoyohaitegeology›A rare mineral; technical term used in geology.豊とよ羽は鉱こうは北ほっ海かい道どうの豊とよ羽は鉱こう山ざんで発はっ見けんされた。Break this sentence down in the analyzerToyohaite was discovered at the Toyoha mine in Hokkaido.
