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Corundum
Geology.com ^ | 9/19/2014 | Hobart King

Posted on 09/19/2014 7:39:28 PM PDT by JimSEA

Corundum is a rock-forming mineral that is found in igneous, metamorphic, and sedimentary rocks. It is an aluminum oxide with a chemical composition of Al2O3 and a hexagonal crystal structure.

The mineral is widely known for its extreme hardness and for the fact that it is sometimes found as beautiful transparent crystals in many different colors. The extreme hardness makes corundum an excellent abrasive, and when that hardness is found in beautiful crystals, you have the perfect material for cutting gemstones.

(Excerpt) Read more at geology.com ...


TOPICS: Science
KEYWORDS: ruby; sapphire
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To: elcid1970

It makes more sense your way with the Ne, or double negative there to equal our modern-day “don’t”.


21 posted on 09/19/2014 8:36:35 PM PDT by lee martell
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To: cripplecreek

Beautiful. ..


22 posted on 09/19/2014 8:43:02 PM PDT by Vendome (Don't take life so seriously-you won't live through it anyway-Enjoy Yourself ala Louis Prima)
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To: cripplecreek

Want....

Need....


23 posted on 09/19/2014 8:43:43 PM PDT by Vendome (Don't take life so seriously-you won't live through it anyway-Enjoy Yourself ala Louis Prima)
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To: cripplecreek

Again, wow.


24 posted on 09/19/2014 8:52:46 PM PDT by Salamander (People will stare. Make it worth their while.)
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To: HangnJudge

I knew that was coming.

;D


25 posted on 09/19/2014 8:53:07 PM PDT by Salamander (People will stare. Make it worth their while.)
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To: cripplecreek
This is mind blowing.


26 posted on 09/19/2014 8:55:56 PM PDT by Salamander (People will stare. Make it worth their while.)
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To: cripplecreek

Just WOW!


27 posted on 09/19/2014 9:21:56 PM PDT by umgud (I couldn't understand why the ball kept getting bigger......... then it hit me.)
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To: cyn

Coriolanus was a noble Woman. He used carborundum to clean carbon from the venturis of his chariots carburetors.


28 posted on 09/19/2014 10:43:56 PM PDT by tumblindice (America's founding fathers: all armed conservatives.)
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To: elcid1970; lee martell; HangnJudge
All well and good as far as pop culture goes, but sorry to say "carborundum" is not a Latin word.

There are several ways to say what is intended (as in any language) but none of them would be understood by a Latin speaker if the word "carborundum" was included. (Although I'm sure that if Michael Savage uttered the phrase he could make it sound quite abrasive.)

Probably the best rendering would be: "Non sino arrodo te spurious."

"Carborundum" although it sounds like it should be Latin is simply the English name for Silicon Carbide. You won't find it in any Latin Dictionary.

(Source: William Whitaker's Words which has a basic aggregation of 39,000 Latin root words.)

29 posted on 09/20/2014 1:04:20 AM PDT by shibumi (Cover it with gas and set it on fire.)
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To: cripplecreek; Salamander
On the Southern end of the Great Lakes we make our own pretty rocks.

We call them "Slag."


And sometimes people make really pretty stuff out of slag.


30 posted on 09/20/2014 1:18:02 AM PDT by shibumi (Cover it with gas and set it on fire.)
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