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Petrified Wood In Days, Not Millions Of Years

prostoalex writes "Any petrified wood enthusiast would tell you that a quality product takes millions of years to mature, following Mother Nature's course, which, of course, is very frustrating for anyone experimenting. Pacific Northwest National Laboratory now managed to get the process in few days, USA Today says. The scientific achievement will be beneficial for "separating industrial chemicals, filtering pollutants and soaking up contamination"."

76 comments

  1. Natalie Portman by Anonymous Coward · · Score: 3, Funny

    A piece of wood in the shape of Natalie Portman... naked and petrified!

    1. Re:Natalie Portman by tod_miller · · Score: 1

      it is on ebay already!

      --
      #hostfile 0.0.0.0 primidi.com 0.0.0.0 www.primidi.com 0.0.0.0 radio.weblogs.com
    2. Re:Natalie Portman by Anonymous Coward · · Score: 0

      You mean, Natalie Wood?

  2. Carbon Dating by Anonymous Coward · · Score: 1, Interesting

    Does this word exactly replicate petrified wood? Have they tried carbon dating the samples? Could this lead to some debate about how accurate our picture of the world based on carbon dating really is?

    1. Re:Carbon Dating by Anonymous Coward · · Score: 0

      More to the point, can I carbon date a petrified Natalie Portman?

    2. Re:Carbon Dating by pv2b · · Score: 5, Interesting

      Heh. I don't think whatever process they're using will change the half-life of carbon-14. That's a nuclear process, not a chemical one.

      It would be cool though, if you could accellerate radioactive decay that easilly. You could just blast your nuclear waste with it and not have to store any more nuclear waste far underground.

    3. Re:Carbon Dating by Stroman+Rebar · · Score: 3, Informative
      The process they are using will not (shouldn't anyway) affect the isotopic distribution of the carbon, so technically you could probably still "carbon date" it. But, since they were using boards bought at a local lumberyard, it wouldn't tell them much.

      If you want more on the specifics of carbon dating, check the Wikipedia:

      http://en.wikipedia.org/wiki/Carbon_dating

      As far as accelerating radioactive decay, there is some interesting research out there about bombarding fission products with accelerated particles and causing a several-fold reduction in decay times. A former ASU nuclear physics professor envisioned one method for it:

      http://members.cox.net/theroyprocess/

      A note of caution: The "Roy Process" web site is run by the former professor's "Agent" so its slanted more for sales than education.

    4. Re:Carbon Dating by NonSequor · · Score: 2, Interesting

      Well, you could take a sample of naturally occurring carbon and separate its isotopes. Then you could make a mixture of isotopes to fudge the data for the appropriate age. After this, you react your carbon with oxygen to form carbon dioxide. Now here's the tricky part: you have to grow your tree in an enclosed environment containing only the carbon you've altered to have the desired ratio. The room will have to be sterilized to remove any organisms with the naturally occurring ratio of carbon in their cells and you'll have to remove the existing carbon dioxide from the air.

      If you do this carefully and leave a negligible amount of natural carbon behind you should get a tree which will carbon test as though it's ancient.

      This would be horrifically expensive though.

      --
      My only political goal is to see to it that no political party achieves its goals.
    5. Re:Carbon Dating by Alkivar · · Score: 1

      however given that possibility could work... it would be really interesting to see if it could be done in a sterile lab environ, or if there are other processes going on that would screw up the result.

    6. Re:Carbon Dating by k98sven · · Score: 2, Informative

      Well, you could take a sample of naturally occurring carbon and separate its isotopes.

      No need for that. Just grab some mined coal. That stuff has been underground for a number of million years and has no C-14 left in it.

      From the posts here, I guess it's not so well-known, but radiocarbon dating is pretty much useless for the modern era for exactly this reason: We've been burning so many fossil fuels that we've screwed up the natural ratio of carbon isotopes in the atmosphere.

    7. Re:Carbon Dating by Tarq666 · · Score: 2, Insightful

      There is a small problem with your question. Actually you cannot carbon date petrified wood as it is not wood, rather it is stone. The organic material of the wood has been slowly replaced by minerals which creates a stone with the appearance of wood. C-14 dating itself only works for organic remains up to around 60,000 years, after that, the amount of C-14 is too small to give an accurate measurement of the age of the material. As petrified wood is usually aged in the millions of years, then you would not be able to date it using C-14 anyway. So if they have replicated the natural methed, but found a way to increase the speed at which it has occured, then there would be no C-14 to measure.

    8. Re:Carbon Dating by tod_miller · · Score: 1

      I agree, this was my thought. They have already proven that the deposits in layers can be caused in a very short time frame with forces of a flood.

      The whole wood and fossils thing, and carbon dating, I think carbon dating is wierd. Isn't there old aged carbon just floating around everywhere? How does it stay yound and fresh, so when it gets trapped it gets all old?

      What life did it start at to measure its half life (i.e. you know the rate of decay, but you don't KNOW the start point? the element, it might have degraded from a lower element)

      I jsut don't get carbon dating, I know it is wrong, so I am poking holes. (even if it is right, it is not even saying if it started as which element, blah blah...)

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    9. Re:Carbon Dating by Ayaress · · Score: 1

      Fossils can't be carbon dated, as pointed out above. Only organic material can be carbon dated, and in fact, you DO know the starting point. All life on earth (while it's alive anyway) has a carbon-14 content within extremely narrow confines. Bacteria collected in the upper atmosphere, locked up in rocks two miles down, worms off the bottom of the ocean, or just skin scraped off some guy on the street has a c-14 content within narrower confines than could be tested until relatively recently. It's just about the only constant thing accross terestrial life. Dead material with the date of origin known to a high degree of certainty (murder vicims being the most common) show that once the cells have stopped functioning, the carbon level stays pretty much constant, but the c-14 level decreases as c-14 atoms decay into lower mass carbon atoms (c-12 IIRC). Now, anyway, anything old enough to be fossilized is useless for carbon dating. There are a lot of other ways to date them, but carbon isn't used except by creationists, for reasons that will be obvious in a second. After a fairly short period of time (less than 100k years), the carbon-14 in the material effectively vanishes (there is still some, but it's unmeasureable). Anything older than that will date to the same age. Fossiles are far older than that. There isn't even any organic material left in them, it's mineral. There are ways to date when the fossil formed based on the materials involved, there are a number of different procedures, and each one has a different resolution (both a maximum age and a +/- margin of error). I'm not an archeologist, so somebody else can cover those. Anyway, as for this... you obviously didn't read the article. They can produce petrified wood in a few days, but that involves being bathed in acid under pressure and baked at over a thousand degrees in an argon-filled chamber. Now, as for the flood deposits, books have been writtin on it. Flood deposits stay wet for a long time. The surface dries quickly, and usually collapses destroying the lower layers. It also sorts things very differently than natural rock layers and with a substantial amount of blending to the point that there's no real boundary between layers. Take a shovel and go dig in your back yard. Once your past the topsoil layer (which in most parts of the US is laid down to better support lawns, and not natural), you'll find a mottled material. There'll likely be a number of different colors, but try to lay down boundaries between them. There aren't any, because it's very well blended with a gradual change in density of one soil type or another. That's the sort of stuff that floods lay down. It's also likely, depending on how much plant and animal life was in your area before it was developed, that it's been very well blended and you won't be able to find any distinctions. That's because flood deposits are unstable, and they shift under weight. They're also very rich soil that gets torn up by roots very quickly. You can see layers in my area, and see that they're very different than the geological column, because mid-Michigan was deforested in the mid 1800's, and my particular area was hit by a 1000-year flood shortly thereafter, and within a few months of the flood, foundations were being poured for the buildings that are here now, so the flood deposits are in generally good condition due to lack of old trees and large animals.

  3. Call me a cynic. by deglr6328 · · Score: 1

    And queue the hordes of unbelieveably improbable scenario spinning creationist kooks...nnnnnnnow!

    --
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    1. Re:Call me a cynic. by Anonymous Coward · · Score: 0
      What kind of faith requires that Man must demonstrate an ability to prove that God can do it? :-)

      But then if God is created in Man's image...

    2. Re:Call me a cynic. by Anonymous Coward · · Score: 0
      What kind of faith requires that Man must demonstrate an ability to prove that God can do it? :-)

      Are you kidding? Ever studied any religions? Just abuot all of them anthropomorphize the s**t out of their God(s).

      For instance, the judeo-christian-islamic God has some interesting inabilities:
      (Judges 1:16, KJB)

      And the LORD was with Judah; and he drave out the inhabitants of the mountain; but could not drive out the inhabitants of the valley, because they had chariots of iron.
  4. Great... by vbdrummer0 · · Score: 1, Funny

    Now I can build that petrified wood computer case I've always wanted!

  5. Re:Carbon Dating (OT) by MBCook · · Score: 1

    Ah, but you would have other problems blasting your nuclear waste. When it decays, it gives off radioactivity (hence the problem). But that is what lets it decay. If you could accelerate it, wouldn't you simply be causing a large burst of radioactive energy when you did it? Couldn't that be worse than buring it encased in lead in some anicent salt mines?

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  6. Re:Carbon Dating (OT) by pv2b · · Score: 1

    Without thinking this though properly -- i think that you could just encase the whole setup that would blast the nuclear waste in lead during the procedure. Any energy should then go towards heating up the lead, which in itself is harmless.

  7. IgNoble by the+eric+conspiracy · · Score: 1

    Sounds like a definite candidate for this year's Ig Noble prize in biology.

  8. Re:Carbon Dating (OT) by gnuman99 · · Score: 1
    No. It would be good. Nuclear decay (also known as fission) produces energy. "Accelerate" that energy release rate enough and you can use it to generate power.

    There would be hell of a lot less nuclear "waste" if they only reprocessed it. I think only 1% or so of uranium is "burned" (decays) in nuclear reactor. A nuclear reactor only generates a few pounds of actual waste per year.

  9. Wait, let me get this straight... by jkmiecik · · Score: 4, Funny

    Any petrified wood enthusiast

    A what now? Those exist?!

    1. Re:Wait, let me get this straight... by miTcixelsyD · · Score: 1

      I'll be there's a magazine dedicated to petrified wood. Hell, there's a WALKING MAGAZINE!!!!

    2. Re:Wait, let me get this straight... by Almost-Retired · · Score: 2, Interesting

      There are in fact some of those around. We're the ones who show up at some public doings in a bolo (string) tie, and the clip has a hunk of 'Tiger Eye' as the decorator. Tiger Eye is in fact petrified wood, with a semi-translucent grain pattern that changes drasticly with the light and viewing angle, usually a golden tan in general color. Rather highly prized by me, I grab a new piece everytime I get a chance. Its also made into rings, but its soft enough that it wears rather dull if not repolished frequently.

      Bolo ties for such outings are one of my trademarks, either with a good sized piece of Tiger Eye, or an even bigger hunk of sterling silver and turquois crafted for me by some Navaho friends many years ago.

      --
      Cheers, Gene

    3. Re:Wait, let me get this straight... by GeckoX · · Score: 1

      No, that is absolutely NOT tiger's eye. What you are talking about does indeed exist, but it is entirely wrong to label it tigers eye.

      Tiger's eye and Bird's eye both come from a particular type of diseased maple trees. The difference between Tiger's and Bird's eye is whether wood is cut across the grain, or with the grain. (Across giving Bird's eye, with giving Tiger's eye)

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    4. Re:Wait, let me get this straight... by Almost-Retired · · Score: 1

      I've seen raw, uncut tiger eye for sale. Its is definitely a stone of petrified wood origin, and not that brightly golden colored in the raw. Many years ago at a rock show, I could have bought a hunk that was nearly a board foot if measured like wood. But I didn't have the required sheckles in the pocket at the time. The guy wanted about 200 1966 dollars for it. He got it before the day was over too. There is a limited supply, so I'd expect that except for the small pieces available today in the grab bags, a couple of CC's max volume now, there is not a heck of a lot of the uncut stuff left. If I could find a whole cubic inch of it, with good figure showing, I'd write a check for about 2 hundred right quick today.

      You are thinking of the maple wood patterns often sold under similar names, such as birdseye, specky, fiddleback or curly etc. But I've never seen a hunk of fancy figured maple called tiger eye either, and I do a bit of woodworking when its warm enough in my shop myself. Yes, its pretty stuff, and I have a few board feet that I'm slowly making gunstocks out of, but that is not the same as the petrified wood normally called Tiger Eye when polished up to let the translucent grain really show itself well.

      --
      Cheers, Gene

    5. Re:Wait, let me get this straight... by p3d0 · · Score: 1

      Whether or not they exist, clearly the submission was meant as a joke, judging from such lines as "which, of course, is very frustrating for anyone experimenting". Obviously, experimenting with petrification is impossible if it takes millions of years.

      --
      Patrick Doyle
      I mod down every jackass who puts his moderation policy in his sig. Oh, wait a sec....
    6. Re:Wait, let me get this straight... by praedictus · · Score: 1

      You are all wrong.

      Tiger eye is a form of quartz, pseudomorphous after asbestos (crocidolite in Tiger's eye, riebeickite in the case of Falcon's eye) It it the partially replaced asbestos fibres which give the woodlike sheen. Could probably find a reference at http:\\mindat.org if I wasn't feeling so lazy.

      --
      Watashi wa chikyubutsurigakusha desu.
    7. Re:Wait, let me get this straight... by Almost-Retired · · Score: 1

      Unforch, the link you quoted does not resolve.

      And if its a quartz, why is it so soft?

      --
      Cheers, Gene

    8. Re:Wait, let me get this straight... by praedictus · · Score: 1

      Sorry, looks like I forgot the www, so the link would be http://www.mindat.org
      Also of possible utility is www.rockhounds.com

      On topic though, petrified wood can look very similar to Tiger's eye if the grain is well preserved (I have some stashed away in my collection somewhere like this to work on when I retire). Also: petrified wood can be found in various stages of replacement, I've seen some that could probably be turned on a lathe successfully. The replacement mineral in petrified wood can be varied: Opal (even precious opal), quartz, carnotite (nasty radioactive stuff), calcite (makes for a pretty soft material), and others.

      --
      Watashi wa chikyubutsurigakusha desu.
  10. Look Buddy by Deliveranc3 · · Score: 3, Funny

    I'm still waiting for my fake/real diamonds! $5 a carrat my ASS!

    Frigging diamond cartels! I wanna cut some glass!

    1. Re:Look Buddy by ivan256 · · Score: 1

      You can get diamond for $5 a carat no problem...

      Oh, wait... You want that all in one piece?

    2. Re:Look Buddy by Anonymous Coward · · Score: 1, Informative

      I'm still waiting for my fake/real diamonds! $5 a carrat my ASS!

      There are people working very hard on this. I think the show Nova did on creating diamond synthetics is one of their best.

      DeBeers purposely hoardes diamonds to keep the price up ala OPEC. In fact, none of their executives can step foot inside the US as they would likely be arrested.

      Sadly, the Bush administration may let them off the hook on this.

      Only if there is honest and real competition in the diamond market (even with the synthetics) will you see $5/carat diamonds As it stands now, many of the synthetics seem to cost as much as the real.

  11. At Last! by Rie+Beam · · Score: 2, Funny

    My hope of having petrified wood delivered to my door in under a week is now closer to reality!

    1. Re:At Last! by gstoddart · · Score: 2, Funny
      My hope of having petrified wood delivered to my door in under a week is now closer to reality!


      It's LOG!

      "What rolls down stairs
      and over the chairs
      and into your neighbor's dog?
      It fits on your back,
      It's good for a snack,
      Everyone knows it's log.
      It's log, it's log,
      It's big, it's heavy, it's wood.
      It's log, it's log, it's better than bad, it's good."

      --
      Lost at C:>. Found at C.
  12. I'm responding to an AC! by anomaly · · Score: 2, Informative

    1. You didn't reference the verse, or the version correctly! It's verse 19, and KJV.

    2. More contemporary versions accurately use the pronoun 'they' where you've quoted 'he.'

    3. In the KJV, if it really meant God, it would have said He, not he.

    But you a) don't care, and b) just wanted to sound smart, didn't you?

    For future reference, the Bible can be found on line in many translations, searchable at http://bible.gospelcom.net/

    --
    But Herr Heisenberg, how does the electron know when I'm looking?
    1. Re:I'm responding to an AC! by ikkonoishi · · Score: 1

      Or more simply just at bible.com

  13. You might expect to get your rocks off... by leonbrooks · · Score: 1

    ...but she might be naked and petrifying, as in, Medusa. Stony glares and all.

    "The relationship was rocky. She was a hard woman, but loved to be pored."

    It does lend new meaning to the (search) phrase "stoned chick".

    --
    Got time? Spend some of it coding or testing
  14. That doesn't seem to have stopped people. by leonbrooks · · Score: 1

    On top of that, you have odd cases like pieces of non-petrified wood sticking up out of the ground in France or embedded in Hawkesbury sandstone in Australia. These have all been carbon-dated and returned answers in the thousand-of-years range, which seems to indicate either that some of the assumptions about initial conditions are badly wrong, or ideas about how rapidly landforms find themselves reshaped are badly wrong.

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    1. Re:That doesn't seem to have stopped people. by fluffy666 · · Score: 1

      Or, of course, it wasn't actually wood. Or whatever it was had modern contamination. You can look it up here.

    2. Re:That doesn't seem to have stopped people. by Anonymous Coward · · Score: 0

      I *never* take seriously the information from people that can't tell the difference between 'principal' and 'principle'. It's one of my principal principles in life.

  15. Did I read that right? by leonbrooks · · Score: 1

    Or did you not just advocate condemning someone for improving the world's knowledge of petrified wood?

    --
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  16. That's not strictly true by leonbrooks · · Score: 1

    Due to their differing masses, C12 and C14 behave slightly differently in chemical reactions. This can be enough to cause natural fractionation of various kinds.

    However, you don't need to change the half-life of C14 to radically alter the numbers you get out of C-ratio dating. AMS dating did it all in one hit by simply counting the atoms correctly, 4eg, and any one of a dozen known natural processes (to say nothing of the preparation samples go through before analysis) can also alter the ratios on the fly.

    He and Rb/Sr and other isotopic-ratio dating methods suffer from similar weaknesses. Unfortunately nobody was there at the time with instruments, and it's a bit late to start any calibration experiments now.

    The second paragraph also runs into a few technical issues, beginning with the observation that bombarding anything is likely to cause even more radioactive waste, like the Cat in the Hat trying to clean up the excess Pink, or the Help Stamp Out Mercury movement.

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    1. Re:That's not strictly true by Stroman+Rebar · · Score: 1
      While it is true that bombarding fission products (or any other radiological waste) does in fact create more waste, the half lives of the transmuted wastes is *generally* shorter then that of some of the more long-lived wastes.

      I think that was the gist of the research that I have read. Sorry, but I couldn't find a citing.

    2. Re:That's not strictly true by tepples · · Score: 1

      Due to their differing masses, C12 and C14 behave slightly differently in chemical reactions. This can be enough to cause natural fractionation of various kinds.

      Thereby giving believers in young-earth creation a valid excuse to doubt radiocarbon dating results.

  17. Yes, Deirdrie, they do. by leonbrooks · · Score: 2, Informative

    Yes, they exist - and your favourite hobbies might appear as totally bizarre to them (amongst others) as to you. Some petrified wood is opalescent and quite beautiful when polished up. I'm not specifically a fan of it, but dear old Dad is a rock-hound and has some breath-taking pieces in his collection.

    --
    Got time? Spend some of it coding or testing
  18. Faking Carbon Dating by SgtChaireBourne · · Score: 2, Informative
    Heh. I don't think whatever process they're using will change the half-life of carbon-14. That's a nuclear process, not a chemical one.
    It can be a chemical process too, instead of a nuclear one, if you set it up right.

    You just need to get the desired ration of C-14 into the food chain. With mice you can feed them on yeast or algae pills made, at least partially, in an artificial environment. With a pine tree however, you'd have to operate a sealed 20m - 30m tall environmental chamber for 30 to 40 years with the special C-14 rich atmosphere the whole time.

    Obviously you'd need a shorter time if you're wanting a smaller tree or smaller wooden object. Ten years ought to give you a tree more than large enough for a spork, be it 200 000 years old or 2 million.

    --
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  19. Petrified Bokken by Anonymous Coward · · Score: 0

    It would be great if they could make a petrified bokken. Maybe fund more research with sales.

    Would we have to call it a sekka no bokutou. (does slashdot allow shift-JIS?)

    I wonder what effect the acid bath might have. Would it maintain enough shape to make it worth it, or would we end up with a thin misshapen stick?

  20. Full Text by Hoch · · Score: 3, Informative

    Full Text in Advanced Materials
    I love that you can always find the USA today equivalent on slashdot, but never anything more in depth, doesnt this site cater to nerds?

    --
    2*31*37*263
    1. Re:Full Text by dr2chase · · Score: 1

      Didn't see any full text at the Wiley site, only an abstract. Complain all you want about the NYT wanting DNA samples to view their articles, they at least let you look for free.

    2. Re:Full Text by tepples · · Score: 1

      Full Text in Advanced Materials

      From the page you linked:

      New users can register to purchase 24-hour access to this article.
      24-Hour Online Access to article US$ 25.00
    3. Re:Full Text by Hoch · · Score: 1

      Sorry that the link does not work for you. I am at a university, so it just worked without showing anything of that sort. I guess I should have known better than to blindly post that. It seems that most science journals have very expensive subscriptions. Lets all hope that this model continues to fall thanks to the internet and the cheap publishing and peer review that it povides.

      --
      2*31*37*263
  21. The REAL Extreme Home Makeover by ReverendLoki · · Score: 1
    So, where do I place my order fo a petrified log cabin?

    And would it be better to petrify the logs, then build the cabin, or build the cabin and then petrify it? Just slip a hug baggie over it, pump it full of gas...

    --
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    1. Re:The REAL Extreme Home Makeover by Anonymous Coward · · Score: 0

      The problem would be the 1400 degrees F needed for the reaction to take place in less than a geologic time scale...

  22. Another use for Viagra by Yanray · · Score: 1

    Well I guess this is another use for Viagra.

    --
    --"Sorry for the inconvience." Gods Last Words to his Creation
    DNA, So Long and Thanks for all the Fish
  23. "Any petrified wood enthusiast would tell you that by twoes00 · · Score: 1

    "Any petrified wood enthusiast " I don't speak to people like that...

  24. I concede transmutation shortens half-lives... by leonbrooks · · Score: 1

    ...I've been well aware of it from the start, but on the other hand bombardment also massively increases the bulk of the waste (turns the substrate and container into waste also) and to a certain extent "randomises" the quantity and nature of the byproducts. Admittedly, it's hard to imagine something more poisonous than Pu.

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  25. Unfortunately for Gondwana Research... by leonbrooks · · Score: 1

    ...lots of it is genuine wood, and whether or not it was contaminated at the surface is irrelevant. The showstopper is that it is wood, which just does not preserve as wood for anything like millions of years.

    That puts a ceiling on the phenomenon of maybe tens of thousands of years, possibly at a stretch hundreds of thousands. Unfortunately, orthodox geography will not admit to a landscape changing that fast.

    --
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  26. So what? by Anonymous Coward · · Score: 0

    There already exist processes to produce silicon carbide, and with lower porosity. Can SiC be used for deposition of semiconductors, or for creating solar panels? No? Then why is this "news that matters"?

    Apparently, the rest of slashdot agrees, based on what people are posting.

  27. Noah survived it by tepples · · Score: 1

    Unfortunately, orthodox geography will not admit to a landscape changing that fast.

    Yes it does. The Orthodox Church and other Christian organizations have endorsed a belief that the earthquakes that triggered the Great Flood of 1656 (after creation) changed the landscape and the environment to the point of unrecognizability.

  28. Once the patents expire, watch the sparks fly. by tepples · · Score: 1

    Only if there is honest and real competition in the diamond market (even with the synthetics) will you see $5/carat diamonds As it stands now, many of the synthetics seem to cost as much as the real.

    As the patents on diamond manufacture start to run out in the 2020s, trust me that the bottom will fall out of the diamond market. Or do you claim that De Beers will hire Cher as the spokeswoman for a proposed patent term extension act?

  29. OK, OK - obligatory posting by putaro · · Score: 1

    Imagine a Beowulf cluster of these!

  30. It's not as if there's a shortage of same (-: by leonbrooks · · Score: 1

    E.g. who directly measured the atmospheric C ratios even 200 years ago, let alone thousands?

    --
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  31. Yes, but that's Orthodox geology, not... by leonbrooks · · Score: 1

    ...orthodox geology.

    It turns out that his boat is just the right size (550 feet long) to ride out tsunami-sized waves. Any longer, she'd break; any shorter, she'd tip. Evidently somebody knew a lot about nautical engineering. It seems that the bilges were even self-pumped by the wave motion. Leonardo couldn't have done better.

    --
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  32. Correct me if I'm wrong... by im_thatoneguy · · Score: 1

    ... but doesn't wood always petrify in a matter of days/weeks. Otherwise it would rot before it petrified. Isn't this just an industrialized process that consistantly does what nature does?

    1. Re:Correct me if I'm wrong... by rewt66 · · Score: 1
      I'm not sure this is right. I think it does have to be buried swiftly and anaerobically, though. The lack of oxygen kills most of the rotting processes (the same is true in landfills, by the way, if they process a reasonably high volume of trash daily).

      By the way, this means that most or all of petrified wood comes from a catastrophe, not from the "normal" course of events.

  33. Two problems by j_w_d · · Score: 1

    Well, yes, you are wrong. First there really is no time limit on mineralization processes or decay for that matter. The state the wood was in when it was buried, the climate, and ground water chemistry all affect the rate and outcome. Also, there is more than one form of "petrified" wood. Many pieces are really casts of wood fragments and retain only the external form.

    Typical replacement minerals are agate and opal, minerals that can be transported and deposited by cold water. However, there are areas where you can look at carbonized tree trunks that are about 10 million years old. You can put a match to a piece and it will burn, rather poorly and malodorously. The logs have visible microfaults through them that are marked by thin veins of quartz. I have also been to one location where it is possible to peel leaves out of water-deposited volcanic ash, leaves that are still completely intact and organic. They were deposited 30 million years ago or so during the Sierran uplift. They aren't petrified at all.

    The biggest problem with the story though is that I have never, ever heard of silicone carbide as a mineral of fossilization. As far as I can find, it's a synthetic mineral (not listed in Dana's or Mason Berry), so the "results" can't possibly exactly duplicate petrified wood - in any form. Also, the process described is a high temperature process that is unlike any environment that wood has been known to petrify in.

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    ------ The only greater hazard to your liberty than n politicians is n+1 politicians.
  34. Re:Two problems - update by j_w_d · · Score: 1

    Update. SiC (Silicon carbide) doea occur in nature - in Nickel-Iron meteorites. It's mineral name is Moissanite (if I got the spelling correct) and it is extremely rare. In any case, it still won't serve as naturally occuring material for fossilization.

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    ------ The only greater hazard to your liberty than n politicians is n+1 politicians.
  35. Think again by j_w_d · · Score: 1

    By the way, this means that most or all of petrified wood comes from a catastrophe, not from the "normal" course of events.

    No, it doesn't. There's a broad gulph between catastrophic and rapidly occuring events. Landslides for instance are quite fast enough to bury trees and preserve then. So are volcanic eruptions. As are floods and tsunamis. Some of those events may be considered "catastrophes" on a human scale, but they are ALL perfectly normal geological processes. Some, such as floods are more or less annual events.

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    ------ The only greater hazard to your liberty than n politicians is n+1 politicians.
  36. Totally OT to Gene by Ohreally_factor · · Score: 1

    I've recently started to get into bolo ties, but I've been having trouble with finding quality plaques on line. You don't happen to have any links to places that will sell them online, do you? Most of what I've seen online is crap.

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    It's not offtopic, dumbass. It's orthogonal.
    1. Re:Totally OT to Gene by Almost-Retired · · Score: 1

      I have to agree. The last time I found anything worth picking up, it was 5 bucks for a little black velvet bag, you fill it from the bins, in a tourist trap just west of Grand Junction CO on I-70 a year ago when I was last out in that neck of the woods doing a temporary Chief Engineers job for the KREX-tv complex in GJ. I was able to sort out a few pieces of tiger eye big enough for necklaces, earrings and pendants, but nothing big enough for a tie unforch. I did get some very nice amythyst though, and a couple of pieces of decent jade so I figure I got my 5 bucks worth.

      But thats about it. The stuff you see in the jewelry stores, even out in that neck of the woods, seems to be getting ever smaller. A 2 cubic inch piece if tiger eye I'd pay a quick 50 for right now. I had a piece of about 1 cubic inch made into a tie about 35 years ago, and its recently been miss-laid, so my best tie now is a couple of ounces of silver and turquois a navaho friend made for me about 25 years ago. That, and some silver bic covers decorated in turquois & coral all came from the same gentleman, as a gift after I had done their musical group a favor when I was the CE at KIVA-TV in Farmington NM back in the late 70's. Yeah, I'm an old fart myself, 70 now, trying to retire (but they won't let me completely) and got a sugar problem coming on. No shots yet, but I expect that time is coming.

      Yeah, I'd love to find something worth buying, but it seems to be getting to the point that they'll be selling it by the carat eventually.

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      Cheers, Gene

  37. Does it preserve most of the carbon it had? by salec · · Score: 1

    Maybe that could be used as the part of the process to pull the carbon out of natural circulation and reduce CO2 level in atmosphere?

  38. Don't you guys even check Google? by tricorn · · Score: 1

    "Tiger's Eye" "Bird's Eye" diseased maple -- no match

    "Tiger's Eye" "Bird's Eye" maple -- plenty of matches, here's a good image of Bird's Eye maple (with a reference to Tiger's Eye). Most of the Tiger's Eye examples seem to be in guitars or hi-fi consoles, but there's a reference to a cruise ship with a "tiger's eye maple" table (at playboy.com). There's a barrette for sale, but the Tiger's Eye in it is the stone, not the wood.

    Lots of references to Tiger's Eye stone, but the only references to it and petrified wood are comparisons to the process, where portions of stone are replaced with other minerals. There's a nice example of Tiger's Eye quartz, and a slightly more detailed description, including some information about how it is formed (including the comparison to petrified wood).