Black diamonds: supernova remnants

[docm]

Cool.....<br /><br />http://www.spaceflightnow.com/news/n0701/12diamonds/<br /><blockquote><font class="small">In reply to:</font><hr /><p><br /><b>Diamonds from outer space</b><br /><br />NATIONAL SCIENCE FOUNDATION NEWS RELEASE<br />Posted: January 12, 2007<br /><br />If indeed "a diamond is forever," the most primitive origins of Earth's so-called black diamonds were in deep, universal time, geologists have discovered. Black diamonds came from none other than interstellar space. <br /> /><br />From Australia to Siberia, from China to India, the geological settings of conventional diamonds are virtually identical, said Haggerty. None of them are compatible with the formation of black diamonds.<br /><br />Approximately 600 tons of conventional diamonds have been mined, traded, polished and adorned since 1900. "But not a single black/carbonado diamond has been discovered in the world's mining fields," Haggerty said.<br /><b><font color="yellow"><br />The new data support earlier research by Haggerty showing that carbonado diamonds formed in stellar supernovae explosions. Black diamonds were once the size of asteroids, a kilometer or more in diameter when they first landed on Earth. </font>/b><br /> /><p><hr /></p></b></p></blockquote> <div class="Discussion_UserSignature"> </div>

 

[MeteorWayne]

You probably should have included this part so we knew what youe were talking about <img src="/images/icons/smile.gif" /><br /><font color="orange"> "In a paper published online in the journal Astrophysical Journal Letters, scientists Jozsef Garai and Stephen Haggerty of Florida International University, along with Case Western Reserve University researchers Sandeep Rekhi and Mark Chance, claim an extraterrestrial origin for the unique black diamonds, also called carbonado diamonds. " </font><br /><br />Although that doesn't explain much, in fact the whole article is rather vague on what then heck "carbonado diamonds" are, other than black. I wish they would have explained the term in the article.<br /><br /> <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[why06]

If anyone was to find one of those asteroids they would be incredibly rich.<br />-Does anyone know why they are Black? <div class="Discussion_UserSignature"> <div>________________________________________ <br /></div><div><ul><li><font color="#008000"><em>your move...</em></font></li></ul></div> </div>

 

[docm]

Carbonado = “burned” or “carbonized” in Portuguese. They were named by the Brazilians who first discovered them in 1840 and they're rarely found outside of Brazil or the Central African Republic. They're very rare and the largest ever found measures 3,167 carats, 60 times larger than the largest clear diamond. <br /><br />http://en.wikipedia.org/wiki/Carbonado<br /><br /><blockquote><font class="small">In reply to:</font><hr /><p>Carbonado is a natural polycrystalline diamond found in alluvial deposits in the Central African Republic and Brazil. This diamond looks black and is highly porous. Unlike other natural polycrystalline diamonds, carbonado has no mantle-derived inclusions and its carbon isotope value is very low. Additionally, carbonado exhibits strong luminescence (photoluminescence and cathodoluminescence) induced by nitrogen and by vacancies existing in the crystal lattice. Analysis of the luminescence suggests that radioactive inclusions existed in the formation process of carbonado.<br /><br />U.S. geologists have discovered the origin of these rare and mysterious black diamonds, interstellar space. A team from Florida International University and Case Western Reserve University used the infrared radiation from the synchrotron at Brookhaven National Laboratory in order to come to their conclusion. They have found that black diamonds contain trace elements nitrogen and hydrogen which they claim are sure indicators of an extraterrestrial origin. They have also hypothesized that these diamonds were created in stellar supernovae explosions and were the size of asteroids when they collided with the earth.<p><hr /></p></p></blockquote><br />The radiation aspect is key as radiation will affect a diamonds appearance, with the type and exposure determining the final color and even some physical characteristics. <br /><br />Radiation treatment is sometimes done on diamonds to alter their color with techniques in <div class="Discussion_UserSignature"> </div>

 

[MeteorWayne]

Thanks.<br /><br />Now it makes some sense. I had never heard of such things before. It's amazing what you don't know until you come to the knowledge base of SDC!!<br /><br />We all know a piece of the pie, together we know so much. <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[silylene old]

Carbonado diamond: <div class="Discussion_UserSignature"> <div class="Discussion_UserSignature" align="center"><em><font color="#0000ff">- - - - - - - - - - - - - - - - - - - - - -</font></em> </div><div class="Discussion_UserSignature" align="center"><font color="#0000ff"><em>I really, really, really miss the "first unread post" function.</em></font> </div> </div>

 

[Boris_Badenov]

Does this find also give more credence to the theory that the Sol system was booted out of it's stellar nursery by a supernova explosion? Another question should be if any iron-60 has been found along with the black diamonds. <div class="Discussion_UserSignature"> <font color="#993300"><span class="body"><font size="2" color="#3366ff"><div align="center">. </div><div align="center">Never roll in the mud with a pig. You'll both get dirty & the pig likes it.</div></font></span></font> </div>

 

[robnissen]

Very interesting thread. It is amazing what you can learn here.