Carnelian
The name derives from the Latin expensive, carnis which means meat, in reference to the similar flesh color. It is a chalcedony with traces of iron, which gives it the characteristic yellow-orange color, being chalcedony It usually has colorless/white bands.
Culturally, since ancient times it has been a very important gem. Ornamental pieces have been found in Mehragh (currently southern Pakistan) from the 5th - 6th millennium BC For the ancient Egyptians, this gem was closely linked to religious practices, the goddess Isis used it to accompany the deceased during their journey to the afterlife.
It can be seen embedded in the gold death mask of Pharaoh Tutankhamun. In Roman times it was used as an engraved gem for use in rings of seal to leave the impression in wax used in correspondence or other important documents. In the primitive Christians, for fear of persecution and to identify each other, they used carnelians engraved with the symbols of their faith, such as fish, boats, crosses or palms.