noun
chrysoberyl
A hard, yellowish-green gemstone; distinct from beryl despite the similar name.
クリソベリルは硬度が高く、宝石として人気がある。
Chrysoberyl is very hard and popular as a gemstone.
Alexandrite is a rare color-changing variety of chrysoberyl.
From English 'chrysoberyl', ultimately from Greek 'chrysos' (gold) and 'beryllos' (beryl).