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                           Mineral of the Month--August


                                              Radioactive Mineral

                                      Formula Unknown


                                              By Ken Casey

Chemistry & Science
Members' Gallery
Article Contributors
Photo & Graphics Credits
Suggested Reading
Invitation to Members
Past Minerals of the Month
ag_3.jpg (64633 bytes) kryptonite(1)_85_d29_m4_y2003_kl182711.jpg (6907 bytes)

It comes in six colors...


...and has many affective properties to only one person!

(Top, left): TV prop replica eBay Item 120005313200
Photo by Paul Anthony, Jr. 2006

(Top, right): "Green Kryptonite"
Artwork by DC Comics 2006


     This month, we are scoping out another green mineral favorite: Kryptonite.

     Many of us are familiar with the name of this exotic extraterrestrial mineral.  It has become
famous since it's discovery around 1943.  Though it's properties don't seem to harm humans
(traditionally), until a discovery around the change of the millennium around a small town in

     Though I do not currently own a piece in my collection, I've been shopping eBay, the Internet,
and my local rock shops and retail stores for a small sample.  No, I do not know a Lex Luthor,
though I am aware that he is a major collector of provenance.

     I understand that a famous natural history museum has a large cabinet-sized crystal in matrix. 
It was misidentified for years, until this summer.  Before we pay our admission to see it for
ourselves, we must learn a little more about this glowing green wonder.  Let's go!



     Welcome to another Mineral Picfest! 

     This month, we are featuring Kryptonite, which is a family of minerals, each possessing
markedly different properties.

     Before we go further in this short article, I must admit, as many of you already know, that
Kryptonite is a fictitious mineral.  It was created as a plot device to give our world's superhero,
Superman, a weakness for the villains in his stories to exploit.  This holds true in this summer's
blockbuster movie, Superman Returns, in which our hero faces his archenemy Luthor, once
again.  I won't spoil the story for you, if you intend to see the film; but, I will touch upon aspects
ofthe hero and the villain in their quest for crystals and geology.

     The Superman character, created in the 1930s by S & S, is not a big fan of Kryptonite.  He
is loathe to be in proximity of any sample from his home planet Kypton, as it affects him in
various, unsavory ways. 

     Lex Luthor, on the other hand, loves to procure whatever samples he can get his nefarious
hands upon.  His goal is to destroy Superman, usually with Kryptonite as a superpower-weakening
agent, then kill him.  May he succeeds this time, I won't tell.

     This criminal genius also has a soft spot for real estate development.  He likes crystals.  Lex
will even visit a museum to tour such collections.  Enough said.  It's a shame that the bad guy
collects minerals.  But wait, Superman has his own stash of high-tech crystals from his father's

     Enough about the new movie.  I hope those of us who like geology films (not just in IMAX), will
go to see it.  I did, and liked it, especially since it was "free popcorn" night at my local theater. 


Chemistry & Science

     I only got a fast glimpse at the museum label on the Addis Ababa Kryptonite meteorite specimen. 
It had a complex chemical name and formula which included fluorite.  When you watch the movie,
see if you can spot and remember the name.  But please don't do this at the expense of your timely
enjoyment of the movie!  Maybe you will want to check it out the second time you see it.

     Kryptonite is known on Earth only from meteoric sources, as it is purported to have been pulled
along Superman's spaceship draft, as he rocketed from the exploding planet Krypton to Earth.

     Many theories abound as to why Superman is affected by bits of his own planet.  One might
think the he should be fine when next to pieces of his former home.  One of the prominent theories
suggests that the material is analogous to radioactive minerals here on Earth.  It would affect him
similarly to those atoms that would harm humans.

     There are really no uses other than to be exploited by villains as a weapon to weaken Superman
before destroying him.

     It occurs as meteorite impact remnants on Earth.  It's origins are on the planet Krypton.  In fact,
our club's local collecting area does not include a collecting locale.  However, our mall toy store has
cloned samples available for a modest fee.

     Here are some good references sites:

Superman Celebration

Metropolis, Illinois Chamber of Commerce

DC Comics, Inc.

The Super Museum, Metropolis, Illinois



Kryptonite.jpg (79606 bytes) The "Kryptonite Handbook", DC Comics


DC25422lg.jpg (20680 bytes) 134351612.jpg (19173 bytes)
DC "Superman Returns" Movie Prop Replica
Available for Collecting from DC Direct
Kryptonite Lightstick Toy
Licensed by DC Comics


superman_1.jpg (11546 bytes) fc_1.jpg (12154 bytes)
Krypton Crystal prop from the original
Superman movie
Courtesy of
Kryptonite Key "Smallville" TV prop
made by
Photo by bazaro_sephiroth (eBay ID)


d6_1_b.gif (11377 bytes) 0a_3.jpg (72380 bytes)
Kryptonite Toy
Licensed by DC Comics


Bright green glowing Kryptonite replica
Photo by Paul Anthony, Jr.


kryptonite_kit.jpg (96055 bytes) kryptonite3.jpg (18219 bytes)
"Superman Returns" Kryptonite prop replica
in collector's edition box with card
Licensed by DC Comics



Kryptonite monument, Metropolis, Illinois
Photo by


     The main use for Kryptonite is to weaken Superman to facilitate his destruction by any arch
villain.  The acclaimed television series, "Smallville" offers a different treatment.  You will have
to tune it for developments.

     As I mentioned above, there are at least six colors of Kryptonite, and each affect Superman
rather differently.  For example, the best known Green Kryptonite weakens Superman.   The Red
variety makes him surly.  To learn more, consult the comic handbook:

     In reality, the name "Kryptonite" has been used by companies and their products.  Two
examples are: Kyptonite Performance Boats and Liquid Kryptonite, a food supplement made by
Bio-Core USA.  And, "Kryptonite" is the name of a popular song by Three Doors Down.


Members' Gallery

Here is where DMS Members can add their Kryptonite photos to share with us.


Until Next Time

     We hope you have enjoyed our all too short visit to Kryptonite.  Please join us next month,
for another article, and we shall journey together!
     Until then, stay safe, and happy collecting. hardhat2a.gif (5709 bytes)



Article Contributors

Photo & Graphics Credits

I would like to gratefully acknowledge the generous contributions of our fellow Kryptonite
enthusiasts, collectors, authors, curators, professionals, and club members who made this
work possible. 

DC Comics, Inc.

Paul Anthony, Jr.

bazaro_sephiroth (eBay ID)

2006  All contributions to this article are covered under the copyright protection of this article
and by separate and several copyright protection(s), and are to be used for the sole purposes of
enjoying this scholarly article.  They are used gratefully with express written permission of the
authors, save for generally-accepted scholarly quotes, short in nature, deemed legal to reference
with the appropriate citation and credit.
  Reproduction of this article must be obtained by express
written permission of the author, Kenneth B. Casey, for his contributions, authoring, photos, and
graphics.  Use of all other credited materials requires permission of each contributor separately

Links and general contact information are included in the credits above, and throughout this article.
The advice offered herein are only suggestions; it is the reader's charge to use the information
contained herein responsibly.  DMS is not responsible for misuse or accidents caused from this
article. All opinions, theories, proofs, and views expressed within this article, and in others on this
website, do not necessarily reflect the views of the Delaware Mineralogical Society.

Suggested Reading

"It's a Killer! Superman vs. Kryptonite", DC Comics 1979 Series #36, May 1983

"Kryptonite Handbook", DC Comics



KEN.JPG (31503 bytes)

   About the Author:  Ken is current webmaster of the Delaware Mineralogical Society.  He has a diploma in Jewelry Repair, Fabrication & Stonesetting from the Bowman Technical School, Lancaster, PA, and worked as jeweler.  He has also studied geology at the University of Delaware.  And, he is currently a member of the Delaware Mineralogical Society and the Franklin-Ogdensburg Mineralogical Society.  E-mail:

Invitation to Members


Want to see your name in print?  Want to co-author, contribute, or author a whole Mineral of the Month article?  Well, this the forum for you!

And Members, if you have pictures, or a story you would like to share, please feel free to offer.  We'd like to post them for our mutual enjoyment.   Of course, you get full photo and author credit, and a chance to reach other collectors, hobbyists, and scientists.  We only ask that you check your facts, give credit where it is due, keep it wholesome for our Junior Members watching, and keep on topic regarding rockhounding.

You don't even have to be experienced in making a webpage.  We can work together to publish your story.  A handwritten short story with a Polaroid will do.  If you do fancier, a text document with a digital photo will suit, as well.   Sharing is the groundwork from which we can get your story out there.

Our club's webpages can reach any person surfing the net in the world, and even on the International Space Station, if they have a mind to view our website!

We are hoping for a possible tie-in to other informative programs upon which our fellow members might want to collaborate.  Contact any officer or board member with your suggestions.

Our next MOTM will be a surprise.  For 2005-6, we are waiting for your suggestions.  What mineral do you want to know more about?

aniagate.gif (1920 bytes)


Most of the Mineral of the Month selections have come from most recent club fieldtrips and March Show Themes, and from inspriring world locales. thus far.  If you have a suggestion for a future Mineral of the Month, please e-mail me at:, or tell me at our next meeting.



Past Minerals of the Month
July 2006 Mineral of the Month: Azurite
June 2006 Mineral of the Month: Pyromorphite
May 2006 Mineral of the Month: Tsavorite by Karissa Hendershot
April 2006 Mineral of the Month: Variscite
March 2006 Mineral of the Month: Petrified Wood, Part II
February 2006 Mineral of the Month: Petrified Wood, Part I
January 2006 Mineral of the Month: Strontianite by Karissa Hendershot
December Mineral of the Month: Clinozoisite
November Mineral of the Month: Bismuth
October Mineral of the Month: Wulfenite by Karissa Hendershot
September Mineral of the Month: Turquoise
August Mineral of the Month: Peridot
July Mineral of the Month: Ruby
June Mineral of the Month: Antarctic Fluorite
May Mineral of the Month: Dolomite, Part 2
April Mineral of the Month: Dolomite, Part 1
March Mineral of the Month: Calcite
February Mineral of the Month: Agate
January Mineral of the Month: Fluorite
December Mineral of the Month: Pyrite
November Mineral of the Month: Stilbite  
October Mineral of the Month: Celestite   

This page last updated:  January 17, 2013 09:16:49 PM




Next Meeting

April Program, Monday, April 8, 2013:

"Destruction of the Fossil Exposures in the Chesapeake Bay Area" presented by Dr. Lauck Ward

General Club Meeting:
April 8, 2013

We are meeting at
Greenbank Mill

Special Meetings:

*Show Committee Meeting, April or May, 2013

*New Home/Lapidary Committee, 2013

*Board Meeting,  April, 2013

Next Field Trips


Past Fieldtrips

Next Show
DMS March Show
March 1-2, 2014 at DelTech Stanton


Our 2013 Show Theme was:
"All That Glitters is as Good as Gold!"

March Show 2013 Report






Fossil Forum

"Dinny, the Dino"

"Belemnites are coming"


MOTM June also commemorates our 50th Show!

It's shiny, yellow, and is a symbol of 50 Years!Can you guess?


Collecting Adventure Stories:

"Sunny Brook Crick Goethite" by Joe Dunleavy