Variety of chalcedony, a semi-transparent quartz, of a deep dull red, flesh, or reddish white colour. It has been carved since the time of the ancient Egyptians, for whom supplies were available as pebbles that could be collected in the Eastern desert.M. M. Bullard...
Hoard of some 180 items of jewellery and precious objects, mostly dating from c. 550 to c. 330
Most common form of ancient Egyptian stamp seal from the Middle Kingdom (c. 2008–c. 1630