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{{element
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[[Image:Dilithium crystal - sta sc.jpg|thumb|A dilithium crystal]]
| name = Dilithium
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[[Image:Dilithium crystals lib entry.jpg|thumb|Dilithium crystals]]
| image = [[file:dilithium crystals lib entry.jpg|220px|Dilithium crystals.]]{{bsmall|Dilithium crystals.}}
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'''Dilithium''' (chemical symbol '''Dl''', or '''Dt''') is a rare crystalline [[element]] found throughout the [[galaxy]]. Dilithium was the only known material which could regulate the [[matter]]/[[antimatter]] reaction, which was why it is used by most species in their [[warp drive]]s. Different compositions and origins produced slightly different appearances in the crystals, ranging in shape and color. Its atomic weight is 315, and its atomic number is 119. (''[[ST]]'' [[reference]]: ''[[Star Fleet Medical Reference Manual]]'')
| symbol = Dl {{small|or}} Dt
 
| number = 119
 
| mass = (315)*{{bsmall|*most stable form}}
 
}}
 
'''Dilithium''' (symbol '''Dl''' or '''Dt''') is a [[chemistry|chemical]] [[element]], [[atom]]ic number 119 on the [[periodic table]].
 
   
==Characteristics and history==
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==Sources==
Dilithium, in its most stable form, has an atomic mass of 315, and was discovered by [[Human]]s for the first time on {{dis|Amalthea|moon}}, the fifth [[moon]] of [[planet]] [[Jupiter]], in the [[year]] [[2049]]. This [[crystal]]line element is part of the trans-[[uranium|uranic]] series of heavy elements. ({{r|ST|Star Fleet Medical Reference Manual}})
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[[Human]] explorers [[Andrew Tautges]] and Professor [[Jenkins]] first discovered dilithium on [[Jupiter V]] (Amalthea) in [[2049]]. (''[[ST]]'' [[reference]]: ''[[Star Fleet Medical Reference Manual]]''; ''[[TAS]]'' [[novelisation]] ''[[The Time Trap]]'')
   
:''[[Federation: The First 150 Years]] states that humans first discovered dilithium from an excavation site at [[Earth]]'s [[South Pole]] in the [[21st century]], evidently having come to Earth via [[meteorite]].''
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Having a large supply of dilithium almost instantly promoted a planet into prominence in interplanetary politics, as other species seek trade. Some planets known for their dilithium deposits include [[Coridan III]], [[Troyius]], and [[Avaton II]]. (''[[TOS]]'' [[video game]]: ''[[Star Trek: Starfleet Academy - Strategic Command|Starfleet Academy: Strategic Command]]'')
   
Dilithium is a member of the [[hypersonic series]] of elements. ({{e|TNG|Rascals}})
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The [[planet]] [[Direidi]] was one of the most concentrated locations of Dilithium in known [[Federation]] space, and was located on the border to [[Klingon]] space (''[[TOS]]'' [[novel]]: ''[[How Much for Just the Planet?]]''). [[Pharos siteworld|Pharos]], another world on the [[Federation Phalanx|Federation-Klingon border]] was also rich in dilithium, to such purity that had it been mined it would not have required refining and that when it was fired upon by the [[USS Enterprise (NCC-1701)|USS ''Enterprise'']] that entire planet ignited in a chain reaction (''[[EV]] [[comic]]: "[[The Fires of Pharos]]").
   
Dilithium was named as a extrapolation of another element's name, [[lithium]]. Dilithium was of note to Federation [[science]] because of qualities as a [[subspace]] amplifier, creating [[transtator]] current when exposed to subspace fields. It was the only known material which could regulate [[matter]]/[[antimatter]] reactions, which was why it is used by most species in their [[warp drive]]s. Different compositions and origins produced slightly different appearances in the crystals, ranging in shape and color. ({{n|TOS|{{nd|Prime Directive}}}})
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In [[2355]], the planets and moons of the [[Maxia Zeta]] [[star system]] were discovered be richly endowed with many minerals including dilithium. (''[[TNG]]'' novel: ''[[The Buried Age]]'')
   
Dilithium was theorized to be formed naturally by violent explosions or [[supernova]]e. ({{n|TOS|{{nd|Preserver}}}})
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The planet [[Konnoria V]] was known for the brutality of it's dilithium [[mining|mines]]. (''[[DS9]]'' [[novel]]: ''[[Devil in the Sky]]'')
   
In 2265, Harry Mudd stated that dilithium crystals were worth 300 times their weight in diamonds. ({{n|TOS|Mudd's Angels}})
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==Usage==
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During the [[23rd century]], the crystals often deteriorated rapidly during adverse situations, so starships often kept large supplies of them on board. (''[[TOS]]'' [[video game]]: ''[[Star Trek: Starfleet Academy - Strategic Command|Starfleet Academy: Strategic Command]]'')
   
Originally, the lifespan of dilithium was limited until methods were discovered in recrystallizing fractured crystals. This caused a drop in the value of dilithium, which was a precious element around [[2275]]. ({{n|TOS|{{nd|Preserver}}}})
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During a trip back to the [[20th century]] to retrieve two humpback whales, the dilithium crystals of the [[HMS Bounty|Klingon ship]] Kirk and his crew were using began to wear out. Since fission based nuclear reactors was still in use, Captain [[Spock]] determined that it might have been possible to obtain high energy protons from such a reactor, and bombard the crystals with them - thus causing dilithium to recrystallize. After obtaining such protons from the United States aircraft carrier ''Enterprise'', Spock and Engineer [[Montgomery Scott]] were able to successfully recrystallize dilithium. (''[[TOS]]'' [[movie]]: ''[[Star Trek IV: The Voyage Home|The Voyage Home]]'')
   
===History===
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By the 24th century, the process of recrystallizing dilithium had been refined to the point that it had become routine on board [[Federation]] vessels. Using a theta-matrix compositor, dilithium could be recrystallized inside the warp reaction chamber. {{minicite}}
[[Human]] explorers first discovered dilithium on Amalthea in [[2049]]. ({{r|ST|Star Fleet Medical Reference Manual}}; {{n1|TAS|The Time Trap}})
 
   
[[Zefram Cochrane]] studied dilithium but kept his knowledge of it secret until he could find a way to make money off of it. Later people thought that Cochrane avoided discussing it to keep the information out of the hands of dictators of the era. ({{r|ST|Federation: The First 150 Years}})
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{{Realworldsection}}
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==Background==
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Dilithium appeared as an element on a Periodic Table of Elements that contained many jokes not meant to be legible on screen in ''[[TNG]]'': "[[Rascals]]", with the chemical symbol "Dt". The ''Star Fleet Medical Reference Manual'' lists it as symbol Dl. However scientifically the use of the prefix "di-" denotes two atoms, suggesting dilithium is actually a chemical compound consisting of two atoms of lithium.
   
After the initial discovery of dilithium, it was discovered that 2-3% of the [[quartz]] on Earth was actually dilithium. This was previously undiscovered because it is difficult to discover the mineral's distinguishing feature -- its extension into the fourth dimension -- through conventional testing. This discovery prompted a gold rush, as many museums dug through their collections and found samples of dilithium. ({{n|TOS|Prime Directive}})
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==Connections==
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*{{memoryalpha}}
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*{{wikipedia|Dilithium (Star Trek)}}
   
:''Federation: The First 150 Years states that dilithium is not native to [[Earth]].''
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[[Category:Substances]]
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[[Category:Elements]]
Having a large supply of dilithium almost instantly promoted a planet into prominence in interplanetary politics, as other species seek trade. Some planets known for their dilithium deposits include [[Coridan III]], [[Troyius]], and [[Avaton II]]. ({{g|TOS|Starfleet Academy: Strategic Command}})
 
 
The [[planet]] [[Direidi]] was one of the most concentrated locations of dilithium in known [[Federation]] space, and was located on the border to [[Klingon]] space. ({{n|TOS|How Much for Just the Planet?}})
 
 
At some point in the [[22nd century]], the [[Klingon Empire]] mined the innermost planet of the [[Arhennius system]] to obtain its dilithium; the Federation never noticed the dilithium on its long range scans as it was under several kilometers of rock. ({{n|Star Trek|Engines of Destiny}})
 
 
[[file:pharos.jpg|thumb|left|Pharos, burning after its dilithium deposits were ignited by phaser fire.]]
 
In [[2254]], [[Starfleet]] engineers constructing [[Project Pharos]] on the [[Pharos siteworld]] in the [[Marrat system]] discovered huge deposits of dilithium of such purity that, had it been mined, it would not have required refining. Because Marrat was an open system, Starfleet, opted to keep the discovery a secret, concerned it could provoke a [[gold rush]], or [[war]]. Unfortunately, [[Klingon]] [[Commander]] [[Kaaj]] did find out about the discovery and attacked Pharos in response. When the {{USS|Enterprise|NCC-1701}} was sent to investigate why communications had been lost with Pharos, Kaaj attacked the starship. To solve the dilemma, Captain [[Christopher Pike]] had the ''Enterprise'' fire on Pharos, igniting the entire planet in a chain reaction, and eliminating the source of conflict. ({{c|EV|The Fires of Pharos}})
 
 
Although the planet [[Halka]] was rich in dilithium, the [[Halkan Council]] was reluctant to associate with organizations with militaristic tendencies. ({{n|TOS|{{nd|Preserver}}}})
 
 
In [[2355]], the planets and moons of the [[Maxia Zeta]] [[star system]] were discovered be richly endowed with many minerals including dilithium. ({{n|TNG|sub=TLE|The Buried Age}})
 
 
[[Romulan]] scientist [[Tavorak]] was reputed to have created a [[virus]] that ate dilithium and attempted to sell his creation to the highest bidder making him a wanted criminal. ({{c|TNG|A Matter of Conscience...|The Truth Elusive}})
 
 
The planet [[Konnoria V]] was notable for the brutality of its dilithium [[mining|mines]]. ({{n|DS9|Devil in the Sky}})
 
 
The [[planet]] [[Naia VII]] was rich in dilithium, among other valuable materials. A [[Starfleet Corps of Engineers]] mining operation there in [[2368]] excavated these, which were vital for [[Starfleet]] to rebuild its strength following the [[Battle of Wolf 359]]. ({{c|TNG|sub=Assimilation²|{{a|Assimilation², Issue 2|Issue 2}}}})
 
 
===Usage===
 
[[file:dilithium crystal - sta sc.jpg|thumb|A dilithium crystal.]]
 
During the [[23rd century]], the crystals often deteriorated rapidly during adverse situations, so starships often kept large supplies of them on board. ({{g|TOS|Starfleet Academy: Strategic Command}})
 
 
During a trip back to the [[20th century]] to retrieve two humpback whales, the dilithium crystals of the [[HMS Bounty|Klingon ship]] Kirk and his crew were using began to wear out. Since fission based nuclear reactors was still in use, Captain [[Spock]] determined that it might have been possible to obtain high energy photons from such a reactor, and bombard the crystals with them - thus causing dilithium to recrystallize. After obtaining such photons from the United States aircraft carrier ''Enterprise'', Spock and Engineer [[Montgomery Scott]] were able to successfully recrystallize dilithium. ({{m|TOS|The Voyage Home}})
 
 
By the 24th century, the process of recrystallizing dilithium had been refined to the point that it had become routine on board [[Federation]] vessels. Using a theta-matrix compositor, dilithium could be recrystallized inside the warp reaction chamber. ({{e|TNG|Family|Skin of Evil}})
 
 
==See also==
 
* [[Dreman dilithium]]
 
* [[lithium]]
 
* [[trilithium]]
 
* [[decalithium]]
 
* [[synthetic dilithium]]
 
 
==Appendices==
 
{{realworldsection}}
 
===Background===
 
Dilithium appeared as an [[element]] on the [[table of elements]] barely legible on screen in the {{e|TNG|Rascals}}, with the chemical symbol '''Dt'''. The ''Star Fleet Medical Reference Manual'' lists it as symbol '''Dl'''.
 
 
In real-life science, element 119 has yet to be discovered. A placeholder name based on its number, "ununennium", has been suggested to document the possible existence of this substance. Some models of theoretical science have stated that heavy elements on this scale may be impossible to synthesize or reproduce, and cannot exist in nature. Subspace science mentioned in ''[[Star Trek]]'' may account for the contradiction of this being a natural resource on other worlds, as well as any relation to lithium, which is another aspect of this fictional material that has not been borne out in real-life study. The formation of the name has the prefix ''di''- preceding lithium, indicating some sort of twofold increase of the basic lithium. A similar nomenclature is used for [[trilithium]] and [[decalithium]].
 
 
===Connections===
 
{{Warp technology}}
 
 
===References===
 
* {{r|ST|Star Fleet Medical Reference Manual}}
 
* {{e|TNG|Family|Skin of Evil|Rascals}}
 
* {{n|TOS|{{nd|Prime Directive}}}}
 
* {{n|ST|sub=Mirror Universe Trilogy|{{nd|Preserver}}}}
 
* {{n1|TOS|Mudd's Angels}}
 
* {{n1|TAS|sub=Log Four|The Time Trap}}
 
* {{g|TOS|Starfleet Academy: Strategic Command}}
 
*{{n|TOS|sub={{st|Worlds Apart}}|How Much for Just the Planet?}}
 
* {{n|ST|Engines of Destiny}}
 
* {{c|EV|The Fires of Pharos}}
 
* {{n|TNG|sub=TLE|The Buried Age}}
 
* {{c|TNG|A Matter of Conscience...|The Truth Elusive}}
 
* {{n|DS9|Devil in the Sky}}
 
* {{c|TNG|sub=Assimilation²|{{a|Assimilation², Issue 2|Issue 2}}}}
 
* {{mnc|TOS|The Voyage Home}}
 
 
===External links===
 
* {{memoryalpha}}
 
* {{tardis}}
 
* {{wikipedia|Dilithium (Star Trek)}}
 
* {{wikipedia|Ununennium}}
 
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