Perles en prehnite, forme goutte Chaman Crystal system: Amorphous

Crystal system: Amorphous

Color: Blue

- Quartz craquelé

Country of origin: India

Refractive index: Np: 1

Perles en prehnite, forme goutte Chaman Crystal system: AmorphousPrehnite beads, drop shape. Color: Green Size: 6 x 9mm Country of origin: Mali Number of drops in a row: Between 40 and 41 Gemological information about prehnite: Possible colors: Colorless, white, green, yellow, brown Density: between 2. 80 and 2. 95 Hardness: between 6 and 6. 5 Crystal system: Orthorhombic Breakage: Irregular Cleavage: Distinct Polariscope: Anisotropic Refractive index: Np: 1. 611 to 1. 632 Nm: 1. 615 to 1. 642 Ng: 1. 632 to 1. 665