. Onyx Yamani onyx: and onyx, consists of silica metal containing impurities of iron compounds and this is the reason for the multiplicity of onyx colors, and the most popular types of onyx is red and is also called agate Rummani or brown, the main source in Yemen, and return renamed alarmed because of old beliefs that used to say that it possess this stone gave them fear and panic. Glue is used in Onyx stone sapphire and improve its color.
Amethyst Amethyst: Also called Omatesi or purple, Hjerm cream color mauve, consists of quartz violet, his native Brazil, and is used in the jewelry industry.
