Zircon - PL spectra
Blue:
- Blue zircon – 6.17 ct – Ratanakiri, Cambodia (heated)
- Blue zircon – 1.2 mm crystal – L'Ailloux stream, Sugères, Puy-de-Dôme, France (unheated)
- Orange zircon – 0.35 ct crystal – Riou Pezzouliou, Le Puy-En-Velay, France
- Dark-orange zircon – 4.96 ct rough – Mud Tank, NT, Australia
- Zircon – small pebbles – Graves Hill, Queensland, Australia