kunzite beads Color: pale pink Sizes between 6 and 14 mm. Country of origin: Brazil. Treatment: contains colourless oil and resin residues that are present in the small fractures of the stone. The purpose of the oil and the resin is to make the stone more resistant. This is called an accepted treatment because it does not change the appearance of the stone. Kunzite gemological information: Namely: spodumene variety. Some pink varieties turn pale in sunlight (photosensitivity). Possible colors: pale pink, light magenta, purple, pink, purple, sometimes shimmering. Density: between 3 and 3.20. Hardness: between 6 and 8. Crystalline system: monoclinic. Break: irregular. Cleavage: perfect. Polariscope: anisotropic. Reestablish all 90 degrees. Refractive index: Np: 1,653 to 1,670. Nm: 1.660 to 1.669. Ng: 1.665 to 1.682. Birefringence: 0.014 to 0.027. Chelsea filter: inert. Spectrum: not observable/ not diagnostic.