Six green onyx marquise shaped cabochons. Excellent choice for jewelry. Refractive index tested for authenticity. Mohs hardness of 6.5 - 7. Excellent transparency; a variety of green to blue colors.
ONYX SiO2 (silicon dioxide) Onyx is a variety of microcrystalline silicon dioxide or chalcedony. It is often banded with white and used for cameo carvings. Most varieties of onyx, including black, are the result of dying. These dyes have been used for hundreds of years. Onyx is often used for rosary beads, as the Christians held on to the pagan beliefs that onyx had great medicinal benefits. Onyx was thought to make wounds heal faster and childbirth go smoothly. The Green Onyx is the symbol of restfulness and purity. This green soothing stone has the power to relief you all worries, tension, stress and fears. It is believed to provide a positive feeling, strong mental support and helps to take wise decisions during your difficulties. Since the green color of Green Onyx is due to the impurities in the chalcedony, and these impurities are unusual. This unusual availability of Green Onyx makes it more valuable than other varieties of Onyx.