Euclase - PL spectra Euclase Index IR-Reflectance Photoluminescence UV-Vis-NIR Light-greenish-blue euclase – (Brazil) Blue euclase – 0.22 ct – Colombia Colorless euclase – 6.15 ct crystal – Brazil Light-greenish-blue euclase – (Brazil) Cr3+ and Fe3+ emissions Blue euclase – 0.22 ct – Colombia Cr3+ and Fe3+ emissions Colorless euclase – 6.15 ct crystal – Brazil
