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Harder-Than-Diamond Natural Carbon Crystals Found

HikingStick tips a piece from the science desk at MSNBC.com about a new, naturally occurring form of carbon found in a meteorite fragment. "Researchers were polishing a slice of the carbon-rich Havero meteorite that fell to Earth in Finland in 1971. When they then studied the polished surface they discovered carbon-loaded spots that were raised well above the rest of the surface — suggesting that these areas were harder than the diamonds used in the polishing paste... [G]raphite layers were shocked and heated enough to create bonds between the layers — which is exactly how humans manufacture diamonds... [The research] team took the next step and put the diamond-resistant crystals under the scrutiny of some very rigorous mineralogical analyzing instruments to learn how its atoms are lined up. That allowed them to confirm that they had, indeed, found a new 'phase' or polymorph of crystalline carbon as well as a type of diamond that had been predicted to exist decades ago, but had never been found in nature until now."

10 of 250 comments (clear)

  1. Re:One thing I don't get... by Toonol · · Score: 5, Funny

    I think it's clear that space-diamonds will have capabilities far outstripping any of our mundane terrestrial diamonds.

  2. As the saying goes... by Black+Parrot · · Score: 5, Funny

    That allowed them to confirm that they had, indeed, found a new 'phase' or polymorph of crystalline carbon as well as a type of diamond that had been predicted to exist decades ago, but had never been found in nature until now.

    "Polymorphs of crystalline carbon are forever."

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    Sheesh, evil *and* a jerk. -- Jade
  3. Mohs Scale of Hardness by L4t3r4lu5 · · Score: 5, Funny

    Now it goes all the way to 11.

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    Finally had enough. Come see us over at https://soylentnews.org/
  4. Re:I don't know about you by FluffyWithTeeth · · Score: 5, Informative

    ...do you think that the meteorite was made by magicians?

    Space is natural too.

  5. Re:How long by dohzer · · Score: 5, Insightful

    I wouldn't bother. It turns out that it's less expensive than a diamond, so women won't be as happy with it.

  6. Lonsdaleite by mdsolar · · Score: 5, Informative

    The article mentions hexagonal diamond (lonsdaleite) as an artificial form of diamond, which it is with a very interesting low energy formation method, but it was first found in nature in the Canyon Diablo Meteorite in 1967. http://en.wikipedia.org/wiki/Lonsdaleite Pure lonsdaleite should be harder than regular diamond. I wish the article has said a little more about the crystal structure the researchers had found. That the energy required to make lonsdalite is low has interesting implications since the quantity needed to replace structural steel needs only about 1/280 of the energy needed to make the steel. http://mdsolar.blogspot.com/2008/01/anaximenes-way.html

  7. Re:One thing I don't get... by Sockatume · · Score: 5, Informative

    They've got an odd definition of "diamond" there: boron nitride has no carbon in it. It's a chemical analogue of diamond, in that you turn half the C atoms (atomic number 6) into B (atomic number 5) and the others into N (atomic number 7). B-N compounds are fun analogues of C compounds but it's a bit of a stretch.

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    No kidding!!! What do you say at this point?
  8. Re:One thing I don't get... by Goffee71 · · Score: 5, Funny

    So now meteorites are a girl's best friend? That's going to complicate some relationships

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    If he's the Walrus then can I be a penguin please?
  9. Re:How long by inviolet · · Score: 5, Interesting

    I wouldn't bother. It turns out that it's less expensive than a diamond, so women won't be as happy with it.

    Women are only that way because men are ever scheming to hit-and-run their womb space. Women need an un-fake-able signal of a man's seriousness, so the signal must take the form of something very (to the suitor) expensive.

    That we use diamonds for this purpose is a benefit to the man, because DeBeers has made sure that there is no resale market. If there was a resale market that offered even 50% value, then the man would first need an un-fake-able signal of the woman's seriousness before passing the rock across the table.

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    FATMOUSE + YOU = FATMOUSE
  10. Re:One thing I don't get... by Xest · · Score: 5, Funny

    I doubt it, they've not found enough space children caught up in intergalactic warfare to exploit yet.