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
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Dye's luminescence
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UO22+ Δk=832 cm-1 ?
No spectrum