Apatite bleue 20 Forme indéfinie 682 Birefringence: 0

682 Birefringence: 0

- Heating blue tanzanite to improve its color

Colors: Purple / Colorless Shape: Round Size: 34

Nombre de perles en 10mm: 36

Pays d'origine: Indonésie

Apatite bleue 20 Forme indéfinie 682 Birefringence: 0Apatite cabochon. Color: Blue Shape: Round Size: 34. 90mm diameter Weight in grams: 21. 88g Carat weight: 109. 40 carat Country of origin: Madagascar Gemological information about apatite: Possible color: Colorless, yellow, green, blue, purple, pink Density: between 3. 16 and 3. 28 Hardness: 5 Crystal system: Hexagonal Fracture: Subconchoidal, uneven Cleavage: Imperfect Polariscope: Anisotropic (restores all 90, except in the optical axis) Refractive