Onyx is a variety of agate, which is a variety of chalcedony, which is a variety of quartz. Onyx is encountered in white, black and beige-brown. Its name is of Greek origin and refers to the lines that can be seen on the claws of several animals. This mineral is also mentioned in Theophrastus’ work.
All minerals used for the creation of our kombolois are mostly gemstones used to craft jewelry. Careful use of this komboloi is recomended. Inclusions, cracks and breakage surfaces are a natural phenomenon and should never be associated with wear and tear.