Mooie Peervormige Labradoriet Cabochon. Approx Weight: 8.15 CT. Size: 16x12 mm Shape: Pear Shape Cabochon Color: Gray with Rainbow Luster Clarity: Transparent Luster: Outstanding Origin: Africa Hardness: 6 - 6.5 Specific Gravity: 2.70 - 2.74 Refractive Index: 1.55 - 1.75 Chemical Composition: CaNa(Al,Si)AlSi2O8, Calcium Sodium Aluminum Silicate Crystal Structure: Triclinic Treatment: None