Crocoite - PL spectra Crocoite Index IR-Reflectance Photoluminescence UV-Vis-NIR Orange crocoite – 10.47 ct crystal – Dundas, Tasmania, Australia Orange crocoite – 0.35 ct – Tasmania, Australia Orange crocoite – 10.47 ct crystal – Dundas, Tasmania, Australia No photoluminescence with 254, 377 and 405 nm excitation. Orange crocoite – 0.35 ct – Tasmania, Australia No photoluminescence with 254, 377 and 405 nm excitation.