Perles en calcédoine entre 6 et 10mm Sizes:10mm Amethyst can be confused with:

Amethyst can be confused with:

Perles en jaspe porcelaine

magenta Density: Between 2

Lapis lazuli beads

Different countries where smoky quartz can be mined: Australia

Perles en calcédoine entre 6 et 10mm Sizes:10mm Amethyst can be confused with:Chalcedony beads. Color: Green and brown Sizes between 6 and 10mm Country of origin: Brazil Gemological information about chalcedony: Possible color: Red, orange, blue, green, white, gray, pink, brown Density: Between 2. 68 and 2. 90 Hardness: Between 6 and 7 Crystal system: Trigonal Microcrystalline Fracture: Conchoidal, irregular Cleavage: None Polariscope: Anisotropic, constantly restoring Refractive index: Difficult to read around 1. 53 to 1. 54