Mas siv nyob rau hauv kev zus tau tej cov hlau terbium, cov khoom siv kho qhov muag, ua kom zoo rau cov hmoov sib nqus, thiab ntxiv rau cov gluorescent, thiab ntxiv rau cov garnet, thiab lwm yam
Zog: Cov hmoov dawb dawb
