View source for Kryptonite

{{Short description|Fictional element from Superman stories}}
{{Distinguish|Krypton|Kryptonium ion}}
{{Other}}
{{pp-move}}
{{Infobox comics elements<!--Wikipedia:WikiProject Comics-->
|image     = Kryptonite (DC Comics).jpg
|caption   = Green kryptonite as seen in<br>''[[Superman: Secret Origin]]'' #1. Art by [[Gary Frank (artist)|Gary Frank]]
|publisher = [[DC Comics]]
|debut     = {{ubl|'''Radio:'''<br />{{nowrap|''[[The Adventures of Superman (radio series)|The Adventures of Superman]]'' (June 1943)}}|'''Comics:'''<br />''[[Superman (comic book)|Superman]]'' #61 (November 1949)}}
| creators =
|type      = Element/compound
|material  = y
|supports  = {{ubl|[[Superman]]|[[Conner Kent|Superboy]]}}
|subcat    = DC Comics
|sortkey   = Kryptonite
}}
'''Kryptonite''' is a fictional material that appears primarily in [[Superman]] stories published by [[DC Comics]]. In its best-known form, it is a green, crystalline material originating from Superman's home world of [[Krypton (comics)|Krypton]] that emits a unique, poisonous radiation that can weaken and even kill [[Kryptonian]]s. Kryptonite radiation can be transmitted through any element except [[lead]]. There are other varieties, such as red kryptonite and gold kryptonite, which have different but still generally negative effects.

Adversaries of Superman and other characters are frequently depicted using kryptonite against Superman,<ref>{{cite book|last1=Horton|first1=Andrew|last2=McDougal|first2=Stuart Y.|last3=Braudy|first3=Leo|title=Play it Again, Sam: Retakes on Remakes|date=1998|publisher=University of California Press|location=Berkeley, California|isbn=0520205936|page=287}}</ref> with [[Lex Luthor]] incorporating it into weapons, [[Metallo]] being powered by it, and [[Titano]] able to project its radiation from his eyes. Kryptonite has become a byword for an extraordinary exploitable weakness, synonymous with "[[Achilles' heel]]".

==History==
[[File:Kryptonite poisoning.jpg|thumb|upright|[[Superman]] suffering from green kryptonite poisoning, courtesy of foes [[Metallo]] and [[Titano]], in ''[[Action Comics]] Annual'' #10 (March 2007), art by [[Art Adams]] and [[Alex Sinclair]]]]
An unpublished 1940 story titled "[[The K-Metal from Krypton]]", written by Superman creator [[Jerry Siegel]], featured a prototype of kryptonite. It is a mineral from the planet [[Krypton (comics)|Krypton]] that drains Superman of his strength and gives superhuman powers to humans. This story was rejected because Superman reveals his identity to [[Lois Lane]].<ref name="Jones">{{cite book|last1=Jones|first1=Gerard|title=Men Of Tomorrow: Geeks, Gangsters, and the Birth of the Comic Book|url=https://archive.org/details/menoftomorrowgee0000jone|url-access=registration|date=2004|publisher=Basic Books|location=New York|isbn=0465036562|pages=[https://archive.org/details/menoftomorrowgee0000jone/page/181 181–183]}}</ref>

The mineral kryptonite, not to be confused with the real element [[krypton]], was officially introduced in the radio serial ''[[The Adventures of Superman (radio)|The Adventures of Superman]]'', in the story "The Meteor from Krypton", broadcast in June 1943.<ref name="auto">{{cite book |last=Hayde |first=Michael J. |year=2009 |title=Flights of Fantasy: The Unauthorized but True Story of Radio & TV's Adventures of Superman |publisher=BearManor Media |isbn=9781593933449 }}<br />"Only one arc in 1943 managed to transcend its era: "The Meteor from Krypton". Debuting on June 3, it marked the debut of kryptonite ..."</ref> An apocryphal story claims that kryptonite was introduced to give Superman's voice actor [[Bud Collyer]] time off. This tale was recounted by [[Julius Schwartz]] in his memoir.<ref>{{cite book |last=Schwartz |first=Julius |title=Man of Two Worlds: My Life in Science Fiction and Comics |year=2000 |publisher=HarperEntertainment |isbn=0-380-81051-4 |url-access=registration |url=https://archive.org/details/manoftwoworldsmy00schw}}<br />pg 132-133</ref> However, historian Michael J. Hayde disputes this. In "The Meteor from Krypton", Superman is never exposed to kryptonite. If kryptonite allowed Collyer to take vacations, that was a fringe benefit discovered later. More likely, kryptonite was introduced as a plot device for Superman to discover his origin.<ref>{{cite book |last=Hayde |first=Michael J. |year=2009 |title=Flights of Fantasy: The Unauthorized but True Story of Radio & TV's Adventures of Superman |publisher=BearManor Media |isbn=9781593933449}}<br />"Since Superman's life isn't threatened — the meteorite never leaves the doctor’s custody — it's likely that Lowther's primary intent was to create a means for Superman to discover his own origin".</ref> On the other hand, Hayde might have mistaken 1943's "The Meteor from Krypton" for 1945's "The Meteor of Kryptonite", as Superman was exposed in the latter but not in the former.<ref>{{Cite web |title=Superman Homepage |url=https://www.supermanhomepage.com/ |access-date=2023-10-24 |language=en-US}}</ref>

In the radio serial, Krypton is located in the same solar system as Earth, in the same orbit, but on the [[Counter-Earth|opposite side of the Sun]]. This provided an easy explanation for how kryptonite found its way to Earth. In the comics' [[Silver Age of Comic Books|Silver Age]], which places Krypton in a distant solar system, much of the kryptonite that came to Earth was transported by the same "space warp" that baby Kal-El's rocket traversed.

Kryptonite was incorporated into the comic mythos with ''Superman'' #61 (November 1949).<ref>{{Cite comic|writer=Bill Finger|penciller=Al Pastino|inker=|colorist=|letterer=|editor=|story=Superman's Return to Krypton!|title=Superman|volume=1|issue=#61|date=November 1949|publisher=DC Comics|location=|page=|panel=|id=}}</ref> In a 1993 interview with ''[[Florida Today]]'', editor [[Dorothy Woolfolk]] stated that she felt Superman's invulnerability was "boring".<ref>{{cite web|last1=Tippens|first1=Norman|title=Dorothy Woolfolk, Superman Editor|url=https://www.dailypress.com/2000/12/06/dorothy-woolfolk-superman-editor/|website=[[Daily Press (Virginia)|Daily Press]]|publisher=WebCite|access-date=2 October 2017|archive-url=https://web.archive.org/web/20130404225236/http://articles.dailypress.com/2000-12-06/news/0012060120_1_superman-comics-comic-books-superman-editor|archive-date=4 April 2013|language=en|date=6 December 2000|url-status=live}}</ref>

Originally depicted as an [[Chemical element|element]] in the [[Golden Age of Comic Books|Golden]], Silver, and [[Bronze Age of Comic Books|Bronze Age]] comics, Kryptonite is depicted as a [[Chemical compound|compound]] in post-''[[Crisis on Infinite Earths|Crisis]]'' continuity.<ref>''[[Action Comics]]'' #591 (August 1987)</ref>

==Varieties<!-- Citations needed in the table. --> ==
Various forms of the fictional material have been created over the years in ''Superman'' publications and programs.<ref>{{cite book |last1=Fleisher |first1=Michael L. |title=The Original Encyclopedia of Comic Book Heroes Volume Three: Superman |date=2007 |publisher=DC Comics |isbn=978-1-4012-1389-3 |pages=369–375}}</ref> This table includes forms that have not persisted in canon. 

{{sticky header}}
{| class="wikitable sortable sticky-header-multi" style="width:100%; font-size:84%;" id="softwarelist"
|-
! rowspan="4" colspan="2" | Type
!rowspan="4"|First appearance
!rowspan="4"|Origin
!colspan="3"|Effects by genetic origin 
!colspan="5"|In other media
|-
!rowspan="3"|Krypton<hr>[[Daxam]]
!rowspan="3"|Earth
!rowspan="3"|[[Bizarro World]]<hr>[[Earth-Three|Krypton-3]]
|-
!colspan="2"|Film
!colspan="2"|Television
!rowspan="2"|Video games
|-
!|Live-action
!|Animated
!|Live-action
!|Animated
|-
! colspan="2" style="background:lime; color:black;" | Green
| [[The Adventures of Superman (radio)|''The Adventures of Superman'' radio serial]], "The Meteor from Krypton" (June 1943)<ref name="auto"/><hr>Comics: ''[[Action Comics]]'' #161 (August 1951)
|Fragments from Krypton
|Loss of superpowers<ref>{{Cite comic | Writer = [[John Byrne (comics)|Byrne, John]] | Penciller = [[John Byrne (comics)|Byrne, John]] | Inker = [[Karl Kesel|Kesel, Karl]] | story = Bloodsport! | Title = Superman | Volume = 2 | Issue = #4 | Date = April 1987 | Publisher = DC Comics | Page = 22}}</ref><hr>Severe, intensifying pain<hr>Severe muscular weakness<hr>Fever<hr>Green blood or skin<hr>Eventual fatality<ref>{{cite book |last1=Greenberger |first1=Robert |last2=Pasko |first2=Martin |title=The Essential Superman Encyclopedia |date=2010 |publisher=Del Rey |isbn=978-0-345-50108-0 |pages=174–177}}</ref><hr>Non-accumulative<ref>{{cite journal |title=Superman II |journal=Who's Who: The Definitive Directory of the DC Universe |date=Dec 1986 |volume=1 |issue=22 |page=29}}</ref><hr>Mitigation by copious yellow sunlight exposure<ref>{{Cite comic |date=1997 |title=[[Kingdom Come (comics)|Kingdom Come]] |story= |issue= |volume= |publisher=[[DC Comics]] |location=New York |writer=Mark Waid |artist=Alex Ross |page=129 |panel=4 |id={{ISBN|1563893304}}}}</ref><ref>{{Cite comic |date=January 2006 |title=All-Star Superman |story= |issue=#1 |volume= |publisher=DC Comics |location= |writer=Grant Morrison |penciller=Frank Quietly |inker= |colorist= |letterer= |editor= |page= |panel= |id=}}</ref><hr>Blocked by lead<hr>Neutralized by Kal-El's ship (''[[Smallville]]''<ref>{{Cite episode |title=Visage |series=Smallville |series-link=Smallville (TV series) |season=2 |number=11 |airdate=2003-01-14 |network=The WB}}</ref>)
|With prolonged exposure: [[carcinogenesis]]<hr>Possible cancer treatment<ref>{{Cite comic|writer=John Byrne|penciller=Dick Giordano|inker=|colorist=|letterer=|editor=|story=Games People Play|title=Action Comics|volume=1|issue=#600|date=May 1988|publisher=DC Comics|location=|page=8|panel=|id=}}</ref><hr>Varied (''Smallville'')
|Bizarro: perfect health<hr>Bizarro World humans: temporary superpowers (''[[Superman & Lois]]'')
|
* [[Superman (serial)|''Superman'' serial]] 
* ''[[Atom Man vs. Superman]]''
* ''[[Superman (1978 film)|Superman]]'' (1978)
* ''[[Superman III]]''
* ''[[Superman Returns]]''
* ''[[Batman v Superman: Dawn of Justice]]''<ref>{{cite magazine|last1=Staskiewicz|first1=Keith|title='Batman v Superman: Dawn of Justice': 6 EW exclusive photos|url=http://www.ew.com/gallery/batman-v-superman-dawn-justice-first-look-photos/2232978_batman-and-superman-square-first-time|magazine=Entertainment Weekly|access-date=2 October 2017|date=2 July 2015}}</ref>
* ''[[Superman (2025 film)|Superman]]'' (2025)
|
* ''[[Justice League: Doom]]''
* ''[[Justice League Action]]''
* ''[[DC League of Super-Pets]]''<ref name=":1">{{Cite web |last=Milligan |first=Mercedes |date=May 3, 2022 |title='DC League of Super-Pets' Domesticate Their Powers in New Trailer |url=https://www.animationmagazine.net/2022/05/dc-league-of-super-pets-domesticate-their-powers-in-new-trailer/ |access-date=October 25, 2024 |website=Animation Magazine |language=en-US}}</ref>
* ''[[Batman Ninja vs. Yakuza League]]''
|
* ''[[Adventures of Superman (TV series)|Adventures of Superman]]''
* ''[[Superboy (TV series)|Superboy]]''
* ''[[Lois & Clark: The New Adventures of Superman]]''
* ''Smallville''<ref>Scharping, Nathaniel (April 4, 2018). [http://blogs.discovermagazine.com/d-brief/2018/04/04/meteorites-ancient-cultures "Space Metal Has Captivated Humanity for Ages"] {{Webarchive|url=https://web.archive.org/web/20191119060942/http://blogs.discovermagazine.com/d-brief/2018/04/04/meteorites-ancient-cultures |date=2019-11-19 }}. ''[[Discover (magazine)|Discover]]''.</ref>
* [[Arrowverse]]
*''[[Titans (2018 TV series)|Titans]]''
* ''Superman & Lois''
|
* ''[[The Brady Kids]]''
* ''[[Super Friends]]''
* [[Superman (TV series)|''Superman'' (1988)]]
* [[DC Animated Universe]]
* ''[[Krypto the Superdog]]''
* ''[[Legion of Super Heroes (TV series)|Legion of Super Heroes]]''
* ''[[The Batman (TV series)|The Batman]]''
* ''[[Young Justice (TV series)|Young Justice]]''
* ''[[Batman: The Brave and the Bold]]''
* ''[[DC Super Hero Girls (TV series)|DC Super Hero Girls]]''
* ''[[My Adventures with Superman]]''
|
* [[Superman (1979 video game)|''Superman'' (1979)]]
* [[Superman (1987 video game)|''Superman'' (1987)]]
* ''[[Superman: The New Superman Adventures]]''
* ''[[Mortal Kombat vs. DC Universe]]''
* ''[[Lego Batman 2: DC Super Heroes]]''
* ''[[Scribblenauts Unmasked: A DC Comics Adventure]]''<ref name=":0" />
* ''[[Lego Dimensions]]''
* ''[[Injustice: Gods Among Us]]''
* ''[[Injustice 2]]''
|-
! rowspan="7" style="background:red; color:black;" | Red
| style="background: red; color: black;" |
| ''[[Superman (comic book)|Superman]]'' #61 (November 1949)
|Traversal through radiated space
|Loss of heroism and inhibitions<hr>Unpredictable effects<ref>{{cite book |last1=Fleisher |first1=Michael L. |title=The Original Encyclopedia of Comic Book Heroes, Volume Three: Superman |date=2007 |publisher=DC Comics |isbn=978-1-4012-1389-3 |pages=369–375}}</ref><hr>Counteracted by green (''Smallville''<ref>{{cite episode |title=Crimson |series=Smallville |series-link=Smallville (TV series) |network=The CW |airdate=2007-02-14 |season=6 |number=13}}</ref><ref>{{cite episode |title=Upgrade |series=Smallville |series-link=Smallville (TV series) |network=The CW |airdate=2010-04-16 |season=9 |number=17}}</ref>)<hr>Same as green (prior to ''[[Adventure Comics]]'' #252, September 1958 only) 
|Unpredictable effects (prior to ''Superman’s Pal Jimmy Olsen'' #80, October 1964 only)<hr>Hair loss (''Super-Pets'')
|
|
|''Super-Pets''
|
*''Superboy''
*''Lois & Clark''
*''Smallville''
*''Supergirl''
*''Titans''
|
*''Super Friends''
*''Batman: The Brave and the Bold''
*''Krypto''
*''Justice League Action''
*''DC Super Hero Girls''
|
*''Superman'' (1987)
*''Scribblenauts Unmasked<ref name=":0" />''
|-
|style="background: lime; color: red;" |-green
|''Action Comics'' #275 (April 1961)
|Created by Brainiac
|Unpredictable effects<hr>Loss of superpowers<ref>{{cite comic |title=Superboy |issue=121 |date=June 1965 |publisher=DC Comics}}</ref>

|
|
|
|
|
|
|
|- 
!style="background: blue; color: red;" |-blue
|''Superman'' #162 (July 1963)
|Invented by Superman<hr>Green charged with "quantum battery" (''Justice League Action'')
|[[Superman Red/Superman Blue|Splitting into aggressive red being and logical blue being]]
|Same as on Kryptonians (''Justice League Action'')
|
|
|
|
|''Justice League Action''<ref>{{cite episode |title=Superman Red vs. Superman Blue |series=Justice League Action |season=1 |number=36 |airdate=2017-09-16}}</ref>



|
|-
!style="background: red; color: white;" |Bizarro-
|''Superman's Pal, Jimmy Olsen'' #80 (October 1964)
|
|
|Bizarro humans: Ridding of Bizarro state<ref>''Superman’s Pal Jimmy Olsen'' #80, October 1964</ref><hr>Humans: Same as red on Kryptonians<ref>''Batman/Superman: World’s Finest'' #12</ref>
|
|
|
|
|
|''Scribblenauts Unmasked''<ref name=":0" />
|- 
!style="background: gold; color: red;" |-gold
|''Superman'' #178 (July 1965)
|
|Temporary memory loss
|
|
|
|
|
|
|
|- 
!style="background: gold; color: green;" |-green<br>-gold
|''Superman'' #192 (January 1967)
|
| Permanent superpower loss<hr>Permanent memory loss
|
|
|
|
|
|
|
|-
!style="background: orange; color: red;" |Modified<hr>Amber
|"Ultra Woman," ''Lois & Clark'' (November 1995)<hr>Comics: ''Dark Knight: Death Metal - The Last 52: War of the Multiverses'' #1 (February 2021)
|Red-powered laser (''Lois & Clark'')<hr>Dark multiverse
| Loss of superpowers to human
| Gain of superpowers from Kryptonian
|
|
|
| ''Lois & Clark''
|
|
|- 
! colspan="2" style="color: white;" |Positive<hr>Platinum 
|"All that Glitters," ''Adventures of Superman'' TV series (1958)<hr>Comics: ''Batman Secret Files'' #1 (December 2018) 
|Impossible world (dream of Jimmy Olsen, ''Adventures of Superman'' TV series/impossible world inside [[Phantom Zone]], comics)
|Source of superpowers (''Adventures of Superman'' TV series)
|Permanent Kryptonian powers
|
|
|
|''Adventures of Superman''
|
|
|- 
! colspan="2" style="background: gold; color: black;" |Negative<hr>Gold
|"All that Glitters," ''Adventures of Superman'' TV series (1958)<hr>Comics: ''Adventure Comics'' #299 (August 1962)
|Dream of Jimmy Olsen (''Adventures of Superman'' TV series)<hr>Green affected by "atomic radiation"
|Permanent loss of superpowers<hr>Temporary memory loss (''Justice League Action'')
|
|Ultraman: Scarring (''Smallville'')
|
|
|
*''Adventures of Superman''
*''Smallville''
|
* ''Super Friends''
* ''Justice League Action''
|
*''Scribblenauts Unmasked<ref name=":0" />''
*''Injustice 2''
|- 
! colspan="2" style="color: green;" |Anti-<hr>Fool's<hr>Slow<hr>Hybrid
|''Action Comics'' #252 (May 1959)
|Created by Metallo (''[[The Brave and the Bold]]'' #175, June 1981)<hr>Synthesized on Earth (''Lois & Clark'')
|None
|Same as green on Kryptonians
|Ultraman: Perfect health<ref>{{Cite comic|writer=Grant Morrison|penciller=Frank Quietly|inker=|colorist=|letterer=|editor=|story=|title=JLA: Earth 2|volume=|issue=|date=September 2000|publisher=DC Comics|location=|page=73|panel=1|id=}}</ref>
|
|
|''Lois & Clark''
|
|''Scribblenauts Unmasked''<ref name=":0" />
|-
! colspan="2" style="background:orange;"|X-<hr>Orange
| ''Action Comics'' #261 (January 1960)
|Experiment by Supergirl to counteract green<hr>Fragments from Krypton (''Superman & Lois''/''Super-Pets'')
| None
| Temporary Kryptonian powers<ref name="DCblog">{{cite web |last=Jaffe |first=Alex |title=Crushed by Color: A Kryptonite Catalogue |url=https://www.dc.com/blog/2025/05/29/crushed-by-color-a-kryptonite-catalogue |website=DC.com |publisher=DC Comics |date=2025-05-29 |access-date=2025-06-04}}</ref>
<hr>Paranoia (''DC Super Hero Girls'')<hr>Pets: Varying powers (''Super-Pets'') <hr>Counteracted by green (''Superman & Lois'')
|Bizarro: same as green on Kryptonians (''Superman & Lois'')
|
|''Super-Pets''<ref name=":1" />
|''Superman & Lois''
|
|''Scribblenauts Unmasked''<ref name=":0" />
|- 
! colspan="2" style="background: blue; color: white;" |Blue
|''Superman'' #140 (October 1960)
|Green subjected to Professor Dalton's duplicator ray<hr>Rare fragments among Krypton's remains (''Super Friends'')
|Harm to soul<ref>{{cite comic
|title=Action Comics
|volume=2
|issue=16
|date=May 2013
|publisher=DC Comics
|writer=Grant Morrison
|artist=Rags Morales
|letterer=John Workman
|colorist=Alex Sinclair
|series=Action Comics (vol. 2)
}}</ref><ref name="DCblog" /><hr>Suspended superpowers (''Smallville'')<hr>Counteracts red (''Super Friends'')
|Medical stability (''Smallville'')
|Bizarro: harms imperfections<hr>Bizarro: death through overcharging (''Smallville'')<hr>Bizarro: logical thought<ref name="DCblog" /><hr>Ultraman: perfect health<ref>{{Cite comic|writer=Grant Morrison|penciller=Frank Quietly|inker=|colorist=|letterer=|editor=|story=|title=JLA: Earth 2|volume=|issue=|date=September 2000|publisher=DC Comics|location=|page=73|panel=1|id=}}</ref>/same as green on Kryptonians (''[[Justice League: Crisis on Two Earths]]'')<hr>Blocked by "imperfect" lead
|
|''Crisis on Two Earths''
|
*''Smallville''
*''Supergirl''
|''Super Friends''
|''Scribblenauts Unmasked''<ref name=":0">{{Cite web |last=Eisen |first=Andrew |date=October 2, 2013 |title=DC Characters and Objects - ''Scribblenauts Unmasked'' Guide |url=https://www.ign.com/wikis/scribblenauts-unmasked/DC_Characters_and_Objects |access-date=October 25, 2024 |website=IGN |language=en}}</ref>
|- 
! rowspan="2" style="background:#FFFFFF|White
|style="background: white; color: black;" |
|''Adventure Comics'' #279 (December 1960)
|Green affected by "space cloud"<ref>{{cite comic
 |title=Superman
 |volume=1
 |issue=296
 |date=September 1976
 |publisher=DC Comics
}}</ref>
|Attacking microorganisms
|Attacking microorganisms
|
|
|
|
|
|''Scribblenauts Unmasked''<ref name=":0" />
|- 
!style="background: white; color: green;" |Bizarro-
|"The Battle with Bizarro," ''Superboy'' TV series (November 18, 1989)
|
|Cellular health
|
|Cellular normality (''Superboy'' TV series)
|
|
|''Superboy''
|
|
|-
! colspan="2" style="background:yellow;"|Yellow
|''Action Comics'' #277 (June 1961)
|Created by Luthor
|Intimidation (''Action Comics'' #277, June 1961)<hr>Unknown (''Superman Family Adventures'' Vol. 12, August 2012)<hr>Fear (''[[Lego DC Super Hero Girls]]'')
|
|
|
|
|''Lego DC Super Hero Girls''
|
|''Scribblenauts Unmasked''<ref name=":0" />
|- 
! colspan="2" style="background: silver; color: black;" |Silver 
|''[[Superman's Pal, Jimmy Olsen]]'' #70 (July 1963)
|Hoax by Jimmy Olsen<hr>Brainiac technology (''Smallville'', comics following ''[[Superman/Batman]]'' #46, April 2008)
|Paranoid delusions
|
|
|
|
|
*''Smallville''
*''Supergirl''
|
|''Scribblenauts Unmasked''<ref name=":0" />
|- 
! rowspan="2" style="background: purple; color: white;" |Jewel<hr>Purple
|style="background: purple; color: white;" |
|''Action Comics'' #310 (March 1964)
|Kryptonian mountains
|Mind control powers
|Vivid dreams (''Super-Pets'')
|
|
|''Super-Pets''
|''Smallville''<ref>{{cite web |title=Smallville: Season 9, Episode 14 [''sic''] – Persuasion |url=https://www.rottentomatoes.com/tv/smallville/s09/e14 |website=Rotten Tomatoes |publisher=Fandango Media |access-date=12 September 2025}}</ref><ref>{{cite episode |title=Persuasion |series=Smallville |season=9 |number=13 |network=The CW |airdate=February 19, 2010 |quote=It's like you and Lois are doing whatever I say but then I can't undo it. Normally kryptonite only affects me, not other people.}}</ref>
|''DC Super Hero Girls''
|
|-
!style="color: purple;" |Purple spotted
|“Streaky’s Supercat Tale,” ''Krypto'' (April 2005)
|
|Self-mind control (''Krypto'')
|
|
|
|
|
|''Krypto''
|
|- 
! colspan="2" style="background: grey; color: white;" |Magno-
|''Superman's Pal, Jimmy Olsen'' #92 (April 1966)
|Created by Mr. Nero
|Magnetic attraction
|
|
|
|
|
|
|''Scribblenauts Unmasked<ref name=":0" />''
|-  
! colspan="2" style="background: black; color: white;" |Tar-based<hr>Black<hr>Harun-El
|''[[Superman III]]'' (1983)<hr>Comics: ''Supergirl'' (vol. 5) #2 (October 2005)
|Synthesized with tar (''Superman III'')<hr>Superheated green (''Smallville'')<hr>Fragments of Krypton<hr>Kryptonian religion (''Supergirl'' TV series)
|Empowered evil self and weakened good self<hr>Reversion by additional exposure (''Smallville''/''Supergirl'' TV series)
|Same as on Kryptonians (''Smallville''/''Supergirl'' TV series)
|
|''Superman III''
|
|
*''Smallville''
*''Supergirl''
|''Justice League Action''
|''Scribblenauts Unmasked''<ref name=":0" />
|- 
! colspan="2" style="background: crimson; color: white;" |Krimson
|''Superman'' Volume 2 #49 (November 1990)
|Created by Mister Mxyzptlk
|colspan=3| One wish granted<hr>Reversion by disclosure of origin
|
|
|
|
|
|- 
! colspan="2" |Kryptisium<hr>-X
|''The Adventures of Superman'' #511 (April 1994)
|Green filtered by Eradicator
|Excessive superpowers
|
|
|
|
|
|
|''Scribblenauts Unmasked<ref name=":0" />''
|- 
! colspan="2" style="background:#fce;"|Pink 
|''Supergirl'' (vol. 4) #79 (April 2003)
|
|Inversion of gender-stereotyped traits<hr>Reversed sex (''Justice League Action'')
|
|
|
|
|
|''Justice League Action''
|
|-
! colspan="2" style="background:#e0f7fa; color: lime" | Opal  
| ''Earth 2 #0'' (November 2012)  
| Created by Mr. Terrific
| Severe mental instability<hr>One use only
|  
|  
|  
|  
|  
| 
|
|-
! colspan="2" style="background:#bbf;"|Periwinkle 
|''[[The Superman Family|Superman Family Adventures]]'' #9 (March 2013)
|
|Joy<hr>Periwinkle transmutation
|
|Bizarro: anger (''DC Super Hero Girls'')
|
|
|
|''DC Super Hero Girls''
|
|}

[[File:Action Comics 310.jpg|thumb|upright|[[Superman]] and [[Jimmy Olsen]] discuss the mineral kryptonite, with the '''jewel''' variant making its debut, in ''[[Action Comics]]'' #310 (March 1964), art by [[Curt Swan]].]]

==References==
{{reflist}}

==External links==
{{wiktionary|Appendix:DC Comics/Kryptonite}}
* [http://www.supermanhomepage.com/comics/comics.php?topic=comics-racfaq#Kryptonite The Superman Homepage's section on kryptonite]
* [http://www.howstuffworks.com/kryptonite.htm Howstuffworks.com: "How Kryptonite Works"]
{{Authority control}}

[[Category:1943 in comics]]
[[Category:Superman]]
[[Category:Vulnerability]]
[[Category:Fictional elements introduced in 1943]]