Egyptian Chalcedony Heart Amulet. New Kingdom, 1550-1070 BC. A substantial translucent chalcedony heart, ib, amulet with ribbed suspension loop above.Cf. Andrews, C., Amulets of Ancient Egypt, London, 1994, item 66(b), for type.3.41 grams, 22mm (1"). From an early 20th century Home Counties, UK, collection.For the ancient Egyptians, the heart, Ib, was the source of intelligence, feelings and actions. A person's memory was also housed in the heart and so at the judgement ceremony, known as the Weighing of the Heart, which took place in the Halls of Amduat in the presence of Osiris, the heart was able to speak on behalf of the deceased, accounting to Osiris for a lifetime of deeds. Therefore, heart amulets were only used on the mummy to protect the owner's organ and to ensure that his heart gave a positive response at judgement.