Zoisite - PL spectra Zoisite Index IR-Reflectance Photoluminescence UV-Vis-NIR Pink: Pink zoisite var. thulite – 0.97 ct – (Merelani), Tanzania Pink zoisite var. thulite – 0.97 ct – (Merelani), Tanzania 489 nm: REE3+533 nm: Mn2/3+ ?693 and 712 nm: V2+