編號 99859092

編號 99859092

IGI Report Number: 746504172
• Species/Variety: Natural Zoisite (Tanzanite)
• Shape & Cut: Oval Cabochon
• Weight: 8.62 ct
• Measurements: 13.95 × 10.69 × 7.19 mm
• Color & Transparency: Bluish Violet, Transparent
• Characteristics: Natural inclusions
• Comments: Tanzanites are commonly enhanced by heat; indicative evidence is typically lacking. Possible clarity enhancement.
• Optical & Physical Properties:
• Refractive Index: 1.691–1.700
• Birefringence: 0.009
• Optic Character: Biaxial
• Specific Gravity: 3.35