For example, Sm2+, Dy2+ and Tm2+ are the cause of a green color in fluorite [10]. Divalent samarium has been implicated in the cause of color in light to emerald green fluorite
For example, Sm2+, Dy2+ and Tm2+are the cause of a green color in fluorite [10]. Divalentsamarium has been implicated in the cause of color inlight to emerald green fluorite