- Shape / Type: Pendant / charm / necklace / necklace
- Material / Gem: Obsidian
- Number: F839
- Level / Type: 100 A / A type / A level
- Origin: China
- Standard international shipping (10-18 days for delivery)
- Refractive index: 1.66 - 1.67
- Specific gravity: 3.33 - 3.34
- Colors and varieties: black, cold varieties
- Size: ~ 52 x 35 * 10 mm
- Weight (g / ct): ~ 7.29 g / 36.45 kt
- Luster: vitreous luster
- Surface texture: medium grain
- Condition: Excellent
- Accessories: adjustable rope necklace