Unbreakable crystal spheres crafted by the Noldor in Aman. They could be used for seeing what happened at a distance, or with two or more, they could be used to communicate. There were eight, of which
seven were given to the Lords of Anadûnê as a gift. The eighth, the Master Stone was kept in Tol Eressëa. These seven escaped the Downfall in the ships of Elendil and his sons. Four of
the seven were kept in Gondor and the other three in Arnor. They were kept in the following locations:
These were the seven stones of the verse (LOTR.620):
Tall Ships and tall Kings
Three times three,
What brought they from the foundered Land
Over the flowing sea?
Seven stars and seven stones
And one white tree.
By the end of the Third Age, only four of the palantíri still survived: the ones at Orthanc, Minas Morgul, Minas Tirith and the Tower Hills. The palantir of Minas Ithil was destroyed in the
destruction of Mordor, The palantir of the Tower Hills was likely taken over the Sea in the Last Riding of the Keepers of the Rings. The palantir of Minas Tirith became so ingrained with the image of Denethor's
death that it was pretty much unusable and the last, the palantir of Orthanc, the Kings of the Reunited Kingdom kept.
The Lord of the Rings
The Unfinished Tales
Minas Tirith | Osgiliath | Orthanc | Minas
Ithil | Minas Anor | Sauron | Saruman | Peregrin
Took | Aragorn | Númenor | The
War of the Ring | The Third Age of the Sun