The Stone of Scone, aka the Coronation Stone [possibly from King Coniah the last legitimate king of Judah], aka 'Lia Fail', aka Jacob's Pillar Stone, aka the Tanist Stone [see below], is a block of sandstone that today rests within the coronation throne of English monarchs, and previously crowned over this rock was Scottish and British monarchs.

Joseph's descendants have carried a mysterious stone with them for millennia. From out of Egypt they took the stone that was intended to top the unfinished pyramid at Saqqara. This stone is called Jacob's pillar stone, or the Stone of Scone, which today rests beneath the Coronation chair in the United Kingdom, but in truth, it was actually the stone that was meant to cap the Step pyramid that Joseph built. Why was the pyramid left unfinished? Why did they save this particular stone???? And why does the Great Seal of the USA have this pyramid as part of its official seal??

The Great Pyramids of Giza were built by the Extraterrestrial space-travelers thousands of years ago and have never been duplicated in engineering and technique, although many have tried, including Imhotep/Joseph.

"In the capital of the Scottish kingdom [Scone] was a venerable fragment of rock, to which, at least as early as the fourteenth century, the following legend was attached: The STONY PILLOW on which Jacob slept at Bethel was by his countrymen transported to EGYPT. Thither came GATHELUS, son of Cecrops [Calcol], King of Athens, and married Scota, daughter of Pharaoh. He and his Egyptian wife, alarmed at the fame of MOSES, fled WITH THE STONE to Sicily or to SPAIN. From Brigantia, in Spain, it was carried off by...the favorite son of Milo the Scot [Gathelus], to Ireland...On the sacred Hill of Tara it became 'Lia Fail,' the 'Stone of Destiny.' On it the Kings of Ireland were placed." ("Historical Memorials of Westminster Abbey", by Arthur Penrhyn Stanley. John Murray, London. 1876. P. 57).  

TANIST is a word meaning 'heir apparent to a sacred king, of ancient Celtic roots'.  Tanistry is the office held by such a 'royal' descendant among the dynastys of Ireland, which began in the second millenium BCE in Ireland and lasted up until the 18th century. TANIS was a city in Egypt, and is considered to be the most important archaelogical site in the northern Delta. Tanis was an important city in the pharaonic period, as it was the capital during the 19th LOWER Egyptian kingdom in 747-332 BCE.  Many believe that this was the Biblical city from which the Exodus began. The chief deities of Tanis were the Amun, his consort, Mut, and their child Khonsu, formering the Tanite triad. This triad was, however, identical to that of Thebes, leading many scholars to speak of Tanis as the "northern Thebes". source: http://en.wikipedia.org/