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Mithril is a precious silvery metal, stronger than steel but much lighter in weight, which was mined by the Dwarves in the mines of Khazad-dûm. The name mithril comes from two words in Sindarin — mith meaning "grey", and ril meaning "glitter". Mithril was also called "true-silver" by Men, while the Dwarves had their own, secret name for it.
The wizard Gandalf explained mithril to the Company, passing through Khazad-dûm, the Mines of Moria:
- "The wealth of Moria was not in gold and jewels, the toys of the Dwarves; nor in iron, their servant... Its worth was ten times that of gold, and now it is beyond price; for little is left above ground, and even the Orcs dare not delve here for it.
Mithril! All folk desired it. It could be beaten like copper, and polished like glass; and the Dwarves could make of it a metal, light and yet harder than tempered steel. Its beauty was like to that of common silver, but the beauty of mithril did not tarnish or grow dim."
- ― The Fellowship of the Ring, "A Journey in the Dark")
For the literal-minded reader, it is unclear whether or not mithril is a real metal; many have thought it to be platinum, however, platinum is far too heavy to qualify as a candidate. It is possible that this legendary material was modelled after titanium, as this metal, while actually quite abundant as ore, was very expensive to produce in its metallic form (especially by medieval technology), and has some of mithril's properties of strength, bright silvery color, corrosion resistance, and light weight. Other possibilities are aluminium or magnesium; these metals are even lighter than titanium, but not as strong or as silvery shiny. (Famously, Napoleon III of France once bought dinnerware made out of aluminium because it was more expensive than gold at the time.) Certainly Tolkien, being highly educated, would have had knowledge of these three metals and the difficulty in preparing them. However, probably because nobody is known to have asked Tolkien about "mithril", it will never be known with certainty whether mithril is based on any real metal.
Mithril is extremely rare by the end of the Third Age, as it was found only in Khazad-dûm. Once the Balrog destroyed the Dwarven Kingdom of Khazad-dum, Middle-earth's only source of new mithril ore was cut off. Before Moria was abandoned by the Dwarves mithril was worth ten times its own weight in gold. After the Dwarves abandoned Moria and production of new mithril ore stopped entirely, it became priceless. The only way to obtain a mithril-object at the end of the Third Age was to either use heirloom mithril weapons and armour that were produced before the fall of Moria, or to melt down these existing weapons to forge new ones. The Noldor of Eregion made an alloy out of it called ithildin ("star moon"), which was used to decorate gateways and portals. It is visible only by starlight or moonlight. The Doors of Durin bore inlaid ithildin designs and runes.
The Mithril Coat
Of all items made of mithril, the most famous is the "small shirt of mail" retrieved from the hoard of the dragon Smaug, and given to Bilbo Baggins by Thorin Oakenshield. "It was close-woven of many rings, as supple almost as linen, cold as ice, and harder than steel..."
- "'It's a pretty thing isn't it,' said Bilbo, moving it in the light."
- ― The Fellowship of the Ring, "The Ring goes South"
A kingly gift, the mithril-coat was actually worth more than the entire worth of the Shire (Bilbo probably knew this, but he didn't care). Bilbo later gave the coat to his nephew Frodo, who wore it during the Quest to Mount Doom. It saved Frodo's life when he was nearly skewered by an Orc in the Mines of Moria. (In the film adaptation of The Fellowship of the Ring, the attack was by a Cave-troll.) It was later taken by the Orcs who captured him in the pass above Cirith Ungol, and passed on to the Dark Lord's servants at Barad-dûr. When the coat was displayed before the hosts of Aragorn at the Gates of Mordor, many despaired, thinking Frodo had been captured or killed, and the Ring taken. Gandalf reclaimed it from Sauron's lieutenant, and was later able to return it to Frodo after the battles were won.
Other Mithril Objects in the Lord of the Rings Novels
- Galadriel possesses one of the three Elven Rings, Nenya. It is wrought of mithril with a white stone.
- Poking through the closets of Orthanc, King Elessar and his aides found the long lost Elendilmir, a white star of Elvish crystal affixed to a fillet of mithril. Once owned by Elendil, the first King of Arnor, it is an emblem of royalty in the North Kingdom.
- The Dwarves' beloved metal appears in Gondor too, the Kingdom of the South. The Guards of the Citadel of Minas Tirith wear helmets of mithril, "heirlooms from the glory of old days."
- As Aragorn's ships sail up the Anduin to relieve the besieged Minas Tirith during the War of the Ring, the standard flying on his ship shows a crown made of mithril and gold.
- After Gimli became lord of Aglarond, he and his Dwarves forged great gates of mithril to replace the gates of Minas Tirith which were broken by the Witch-king of Angmar.
Mithril, or similarly spelled names, has been used in other fictional contexts as a strong and semi-magical metal. Examples include:
- Objects in Bored of the Rings (a Lord of the Rings parody) are made of cheap "mithral plate" rather than solid mithral.
- In the role-playing game Dungeons & Dragons, mithral is one of the special materials used to make high-quality or magical items.
- In the MMORPG EverQuest, mithril is a metal that can make weapons, armor, and other equipment.
- In the MMORPG, "Runescape", as well as "Everquest", "mithril" is a bluish mid-level metal that is used to make armor and weapons. There is also a Mithril Dragon which is also blue.
- In the anime series Full Metal Panic!, Mithril is a mercenary organization. In the Full Metal Panic!: The Second Raid, the origin of the name is explained as a reference to The Lord of the Rings.
- The name of a Celtic/World music quartet.
- In the Civilization IV scenario "Fall from Heaven" Mithral is the most valuable Metal available.
- In the 1994 computer game "Master of Magic" Mithril is one of two Magic metals that can greatly enhance troops
- In the Freware game "Dwarf Fortress" the metal Adamantite has the exact properties described in mithril (weight, strength, worth etc.) but if one mines too greadily and too deep after it, then the same fate await the fortress as did Moria.
In Hervarar saga, which was a cycle dealing with the magic sword Tyrfing (and from which Tolkien borrowed, for instance, the names Dwalin and Durin), the hero Orvar-Odd wore a silken mailcoat which nothing could pierce (Oddr svarar: "ek vil berjask við Angantýr, hann mun gefa stór högg með Tyrfingi, en ek trúi betr skyrtu minni, enn brynju þinni, til hlífðar").