硬こう玉ぎょくこうぎょくMeanings1nounjadeitemineralogyMineralogical term for jadeite, the pyroxene mineral. In everyday contexts, 翡翠 (ひすい) is more common for jade as a gemstone.硬こう玉ぎょくは翡ひ翠すいの一いっ種しゅで、宝ほう石せきとして珍ちん重ちょうされる。Jadeite is a type of jade and is prized as a gemstone.
