noun 下载 🔗分享 坦桑石 A trichroic violet-blue variety of the mineral zoisite mined in Tanzania, used as a gemstone. Examples : "My grandmother's ring has a beautiful tanzanite gemstone. " 我奶奶的戒指上有一颗漂亮的坦桑石宝石。 mineral material geology 与AI对话词汇游戏阅读练习