Chrysocolle 19 Coeur 93 Hardness: Between 3 and

93 Hardness: Between 3 and 4 Crystal system: Trigonal Fracture: Conchoidal Cleavage: Perfect Polariscope: Anisotropic (restores every 90°) Refractive index: Ne: 1

30 carat Country of origin: Madagascar Gemological information about tourmaline: Density: Between 2

Chelsea filter: Green or more intense blue

Possible color: From light green to dark green

65 Hardness: Between 6 and 7 Crystal system: Trigonal Family: Microcrystalline Quartz Breakage: Irregular Cleavage: None

Chrysocolle 19 Coeur 93 Hardness: Between 3 andChrysocolla cabochon. Color: Blue to blue green with brown Shape: Oval Size: 36. 31 x 25. 67mm Carat weight: 60. 36 carat Weight in grams: 12. 97g Country of origin: Namibia Gemological information on chrysocolla: Possible color: Blue to blue green. Light blue green. Hardness: Between 2 and 4. Sometimes up to 7 for material that is highly silicified or included in quartz Density: Between 2 and 2. 45 (if silicified 2. 65) Crystal system: Orthorhombic