Schitterende Oranje Vuur Opaal 5.08 CT. Size: 11.8x13.2x6.4 mm Shape: Oval Cut Color: Fire Orange Clarity: VVS Luster: Perfect Origin: Australia Hardness: 5.5 - 6.5 Specific Gravity: 1.42 - 2.25 Refractive Index: 1.37 - 1.47 Chemical Composition: SiO2-nH2O, Hydrated Silicon Dioxide Crystal Structure: N/A Treatment: None - Unheated