Turquoise - PL spectra
Blue:
- Strongly-greenish-blue turquoise - 14.40 ct - Unknown locality
- Strongly-greenish-blue turquoise - 2.72 ct - Iran
- Strongly-greenish-blue turquoise - 2.02 ct slice - Kerman, Iran
- Greenish-blue turquoise - drilled tumbled stone - Unknown locality
No spectrum
No spectrum
No spectrum
No spectrum
Dye's luminescence
UO22+ Δk=832 cm-1 ?
No spectrum