Apatite Approx Weight: 0.25 CT. Size: 5x3.5 mm Shape: Pear Shape Facet Color: Neon Blue Green Clarity: Clean Luster: Astonishing Origin: Africa Hardness: 5 Specific Gravity: 3.1 - 3.2 Refractive Index: 1.63 - 1.64 Chemical Composition: Ca5(PO4)3(OH,F,Cl), Calcium (Fluoro, Chloro, Hydroxyl) Phosphate Crystal Structure: Hexagonal Treatment: None
