Perles en rhodonite, forme disque plat 4 x 6mm cristal de roche dark orange

dark orange

often with black spots or streaks

Polariscope: Anisotrope (souvent opaque)

On parle d'opale amorphe

This is the name generally given to a plagioclase

Perles en rhodonite, forme disque plat 4 x 6mm cristal de roche dark orangeRhodonite beads, flat disc shape. Color: Pink, often with black spots or streaks Size: 4 x 6mm Country of origin: Australia and Canada Gemological information about rhodonite: Density: Between 3. 40 and 3. 70 Hardness: Between 5. 5 and 6 Crystal system: Triclinic Fracture: Conchoidal, irregular, splintery Cleavage: Perfect Polariscope: Anisotropic (does not restore if opaque) Refractive index: No: 1. 711 to 1. 738 Nm: 1. 714 to 1. 741 Ng: 1. 724 to 1.