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                           Mineral of the Month--July


                                       Aluminum Oxide


                   Ruby Picfest

                     By Ken Casey


Ruby Picfest!
Article Contributors
Photo & Graphics Credits
Suggested Reading
Invitation to Members
Past Minerals of the Month
2216tn.jpg (6726 bytes) Corundum, variety Ruby
Mogok, Burma

Rubies are red, Sapphires are blue...



...and other colors.  Only Ruby holds color true!

The above image is courtesy of Isaias Casanova of IC Minerals 2005


     Ruby is a wondrous gemstone!  Found in pegmatites as an accessory, in marbles and
calcites, and most widely in riverbeds, this truly red crystal is easy to discern from its
surrounding rock.

     In this month's Mineral of the Month, we will be offering more and larger pictures.  In
fact, we will be displaying a gallery of fine photos of ruby specimens from around the world! 
We will save the science for another day, so as to not interfere with our viewing pleasure of
this spectacular crystal.  Please, do enjoy.  (And no hard hats required this trip!)


     Yes, rubies are quite a phenomenal gemstone!  In ancient times, if you found a reddish
stone in a streambed, you may have been considered lucky.  With the advent of the arts of
lapidary and fancy metalwork, this rare stone became adored for its beauty and rarity in
nature in its gemmy traits.

     Fancy jewelry, crowns, swords, and the like have been crafted by artisans over the
millenia in many places around the world.  It is hard for one to deny the great work of master
faceters, jewelers, swordsmiths, and their kindred craftsfolk.  However admired, we will
instead focus on nature's craftmanship: the raw, faceted crystal in its many associations.

     I hope you have your "millions of colors" setting selected on your computer to enjoy the
various subtle hues relegated to nature's royal wonder.  Let's view!


Ruby Picfest!

Images courtesy of Isaias Casanova at IC Minerals

2216a.jpg (21344 bytes) 2216b.jpg (20801 bytes)

(Left & Right views): Corundum, variety Ruby, Mogok, Burma

Images are courtesy of Isaias Casanova of IC Minerals 2005


2692.jpg (26070 bytes) 2692a.jpg (28847 bytes)
Hexagonal Ruby crystals in greyish matrix, Rais Mine, Ural Mountains, Russia

Images are courtesy of Isaias Casanova of IC Minerals 2005


2693.jpg (40764 bytes)
2693a.jpg (28421 bytes)

Another set of hexagonal ruby crystals, Rais Mine, Ural Mountains, Russia

Images are courtesy of Isaias Casanova of IC Minerals 2005


2693b.jpg (29047 bytes)

Another view of Russian ruby crystals

Images are courtesy of Isaias Casanova of IC Minerals 2005


IMGP4396.JPG (2115859 bytes) IMGP4397.JPG (2047064 bytes)

Red Corundum (Ruby), aka "Lilac Sapphire" from Rose Creek Mine, near Franklin, NC

Photo by Ken Casey 2005  (from personal collection)



Until Next Time

     We hope you enjoyed your virtual ruby tour.  Perhaps your experience will inspire you
to collect red corundum, or even to quest to a museum to view them in person.  If you like
this sampling of ruby, please let me know.  If enough of you like it, perhaps I will write a full-
length article on Ruby for one our future virtual fieldtrips.

     Until then, stay safe, and happy collecting. hardhat2a.gif (5709 bytes)



Article Contributors

Isaias Casanova, IC Minerals


Photo & Graphics Credits

Isaias Casanova, IC Minerals

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


United States Department of the Interior, Bureau of Land Management,
National Park Service  (NPS Photo)

2005  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
is only suggestion; it is the reader's charge to use the information
contained herein responsibly. 
DMS is not responsible for misuse or accidents caused from this
  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

Corundum by Richard W. Hughes



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.

August's MOTM will be a surprise.  For September 2005, we are waiting for your suggestions.  What mineral do you want to know more about?

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Most of the Mineral of the Month selections have come from most recent club fieldtrips and March Show Themes, and from inspriring world locales, and birthstones & gemstones. 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.






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