Origins and Names
The seeing-stones were the work of Fëanor, made in Aman during the Elder Days, before the Noldor's exile from Valinor. Neither the material of the stones nor the craft that shaped them is described in any explanatory detail; they belong among the works attributed to Fëanor's hand without an account of their making comparable to that given for the Silmarils. Tradition held that seven such stones existed, forming a single set rather than isolated works, and Tolkien's narrator identifies them collectively as palantíri, a compound built from Quenya elements meaning roughly "that which watches from afar" or "far-seer" — a name descriptive of their function rather than a proper name given by their maker. The singular form palantír was applied equally to the whole set and to any one stone taken individually.
In Middle-earth the stones acquired further names tied to the places where they came to rest, rather than to any distinction of kind among them: the Orthanc-stone at Isengard, the Anor-stone and the Osgiliath-stone associated with the realm of Gondor, and the Ithil-stone kept at Minas Ithil before that city's fall. Additional stones were set at Annúminas and at the Tower of Amon Sûl in the North-kingdom. These place-names were practical designations used by those who held or discussed the stones in later ages, distinguishing one from another once they had been distributed among the towers of Arnor and Gondor, rather than names original to Fëanor's making. In English the objects were rendered as "seeing-stones," a translation of their function used alongside the untranslated Quenya term.
Making and Nature
Each palantír was a globe of glass-like crystal, perfectly round and smooth, giving no outward sign of its power when not in use: unlit and dark, or faintly clouded, until called upon by a hand that knew how to wake it. The stones were not uniform in size. Some were small enough to be held and carried, while others, such as the stone kept in the chamber atop Orthanc, were so large and heavy that a man could barely lift or turn one unaided, and required a fixed stand to be used at all. Nothing in the account of them describes an inscription, setting, or ornament; their power lay in the substance itself, not in any device added to it.
A palantír allowed its holder to see distant places and, when two stones were in accord, to see and speak with whoever held the other, no matter how far off that other stone might be. This was not a passive or automatic effect: an untrained or idle glance showed little of use, and turning the sight toward a chosen place or person demanded sustained effort of will and some skill in handling the stone. Strength of will mattered more than the mere act of holding one, so that a stronger mind looking through a paired stone could contest, overhear, or even seize control of what a weaker holder saw and did, without the weaker party fully realizing it. The stones themselves were not said to lie or to invent false images, but what a viewer beheld could be selected, limited, or turned to a deceptive purpose by whoever governed the exchange at the other end.
The seven stones were not simply seven equal instruments but parts of one coordinated set, bound to one another by degrees of affinity rather than by open connection to all alike. Among them the stone housed at Osgiliath held precedence as chief and master, capable of overlooking and drawing upon the lesser stones, while those distributed among the northern towers and the remaining seats of Gondor were more closely attuned to certain partners than to the whole set. This graded structure meant that command of the greatest stone carried an authority over the others that no single lesser stone possessed on its own, a distinction of function built into the making of the set rather than a difference in the material or shape of any individual stone.
History
The stones came to Middle-earth with Elendil and his sons, carried out of the wreck of Númenor when the island foundered at the end of the Second Age. Once the exiles had established the realms of Arnor and Gondor, the seven palantíri were parcelled out among the chief strongholds of the two kingdoms: in the North they were set at Annúminas, at the watch-tower of Amon Sûl, and at the Tower of Elostirion among the Tower Hills; in the South they were placed at Minas Anor, at Minas Ithil, at Orthanc, and at Osgiliath, where the greatest of the seven held its seat under the Dome of Stars. This distribution was meant to bind the scattered Dúnedain realms together, allowing rulers and wardens in distant towers to confer without recourse to messengers.
Of the seven, the stone kept at the Tower of Elostirion stood apart from the outset, oriented toward the Sea rather than toward its six companions, and it played no part in the later exchanges among the others; its history runs separately from theirs. The remaining northern stones did not survive Arnor's long decline: when King Arvedui was driven from his kingdom and drowned in the northern sea in TA 1975, the palantíri he carried with him were lost beneath the waves. In the South, the chief stone of Osgiliath was lost in the waters of the Anduin during the Kin-strife that tore Gondor apart in the fifteenth century of the Third Age, so that Gondor was left with the lesser stones of Minas Anor, Minas Ithil, and Orthanc, and the coordinating authority the greatest stone had once provided was gone.
The Ithil-stone passed out of Gondor's hands in TA 2002, when the Nazgûl overran Minas Ithil, and for many centuries afterward it lay unused and unremarked, its whereabouts within Mordor unknown to those who might have opposed Sauron. Only as Sauron's power grew did he set the stone to work again, using it first to draw the mind of Saruman, then master of Isengard and keeper of the Orthanc-stone, into contact with him; through that link Saruman was drawn step by step into Sauron's service even as he believed himself still master of his own counsel. Later in the same years Denethor, Steward of Gondor, began looking into the Anor-stone kept at Minas Tirith, matching his will against Sauron's directly and in secret from all around him.
The Orthanc-stone changed hands twice in the last year of the Third Age: after Saruman's defeat at Isengard, Gríma cast it down from the tower rather than see it given up, and it was retrieved unbroken; Peregrin Took then looked into it unbidden and was briefly seized and questioned by Sauron before Gandalf intervened. Aragorn subsequently took the stone into his own keeping and, claiming it openly as Elendil's heir, used it to declare himself to Sauron and wrestle the vision toward his own purpose, an act that hastened Sauron's assault on Gondor while denying him certainty about Aragorn's course. Denethor's use of the Anor-stone ended with his death by fire in TA 3019; the stone itself was not destroyed, but those who looked into it afterward found it darkened toward despair unless their will was strong enough to master what Denethor's long contact with Sauron had left upon it.
After the war, Aragorn kept the Orthanc-stone rather than setting it aside, judging that as Elendil's heir he alone among those then living could safely command it, and he purposed to restore it to use as an instrument of watchfulness over his reunited realm. The Anor-stone remained in Minas Tirith but passed out of active use, its taint making it unfit for casual recourse even by the King. Of the seven palantíri only these two were still accounted for and workable by the close of the Third Age; the fates of the northern stones lost with Arvedui, of the stone lost in the Anduin, and of the Ithil-stone once it was reclaimed from Barad-dûr's ruin went unrecorded in the surviving accounts.
In the Story
Within the narrative, the palantír functions less as a plot mechanism than as a test of character. Its first dramatic appearance comes through Pippin, whose idle curiosity about the dark globe Gríma has flung from Orthanc leads him to look into it against every warning; the scene plays out as a small drama of temptation answered by consequence, and it is Pippin's honesty about his own folly, rather than any special virtue, that lets Gandalf undo the worst of the damage. The episode sets the pattern for how the stones operate throughout the book: they do not act on the world directly, but they expose whoever handles them to a contest of will they may not be equipped to win.
That same pattern gives the palantír its thematic weight alongside the novel's central object. Where the Ring corrupts by feeding desire, the stone corrupts by feeding certainty: both Saruman and Denethor come to ruin not because the stone lies to them outright, but because a mind convinced of its own strength mistakes a partial, managed view for the whole truth. Denethor's despair in particular is presented as the fruit of information used without counsel, seen alone and unshared, so that Sauron needs only to let him glimpse what serves Sauron's purpose to break him. The narrative treats this as a warning distinct from the Ring's: the danger of a tool that grants knowledge and reach beyond one's wisdom to bear them.
Aragorn's turn with the Orthanc-stone reverses this pattern rather than repeating it. He takes it up deliberately, aware of the risk, and uses it not to seek comfort or hidden knowledge but to announce himself and force his enemy's hand — an act framed in the story as the rightful use of a perilous inheritance by the one entitled to wield it. In this the stone becomes a proving-ground for kingship as much as an instrument of sight: what ruins the fearful or the secretive confirms Aragorn's claim, since only a will and a right equal to the stone's demands can turn it to purpose rather than be turned by it.
Adaptations
Peter Jackson's film trilogy keeps the Orthanc-stone as a significant object but reduces it to a single stone rather than one member of a set. No account is given of the stones' making in Valinor, of Fëanor, or of the seven distributed among the towers of the two kingdoms; Gandalf's explanation is compressed to a warning about who else may be watching through it. The circumstances of its recovery are changed: Gríma does not hurl it from the tower at the parley, and the stone instead comes into the company's hands amid the flooded ruin of Isengard at the opening of the third film, with the Orthanc confrontation itself relegated to that film's extended version. Pippin's unbidden look and Gandalf's intervention are retained in substance. Aragorn's claiming of the stone and his self-revelation to Sauron likewise appear only in the extended cut, and the exchange is given a personal turn absent from the novel, with Sauron answering the challenge by threatening Arwen rather than by breaking off in alarm. The most consequential departure is on Denethor's side: his secret use of the Anor-stone is dropped entirely, so that his despair and his death by fire are supplied with other motives and the parallel between Steward and wizard, both undone by managed knowledge, disappears from the films.
The BBC Radio 4 dramatisation preserves both strands. It devotes an episode to the Orthanc-stone and retains Gandalf's exposition of the stones' history and of Saruman's entrapment through his own, with Michael Hordern as Gandalf, Peter Howell as Saruman and Robert Stephens as Aragorn; Denethor, played by Peter Vaughan, keeps his use of the Anor-stone and the disclosure of it at his death. Ralph Bakshi's animated film has no occasion for the object at all, since it breaks off after Helm's Deep, before the point in the narrative at which the stone first comes into the story.