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Strange Crystals Reveal Rock to be Ancient Meteorite

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posted on Jan, 4 2012 @ 02:22 AM
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Strange Crystals Reveal Rock to be Ancient Meteorite


www.space.com

Two years after identifying the Russian rock's unusual composition, a team of scientists thinks it has nailed down its origin. The researchers say it is a quasicrystal formed under conditions far more likely in space than inside the Earth, and that its chemical composition of metallic copper and aluminum resembles what is found in so-called carbonaceous chondrites – the primitive meteorites that scientists think were remnants shed from the original building blocks of planets.
(visit the link for the full news article)


Related News Links:
en.wikipedia.org
classes.yale.edu




posted on Jan, 4 2012 @ 02:22 AM
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This neat "rock" is actually made out of a type quasiperiodic crystal (or quasicrystal). A quasicrystal is very interesting in that it has a pattern that periodically repeats but is subject to some form of unpredictability. Also, it has the ability to fill a space endlessly and will produce as if it were a fractal. However, quasicrystals actually lack translation symmetry and so they will not, at some point, re-create their original pattern (in any direction). This is due to the fact that normal crystals can only posses a rotation-symmetry of two, three, four, and six-fold. Where as quasicrystals can contain odd-numbered symmetries like five-fold rotation.

Originally the concept of such crystals was created in mathematics being called "Aperiodic tilings" in the 1960s. Then, eventually, the quasicrystals were created in a laboratory. The crystals themselves are also different from normal crystals in that they contain an arrangement of atoms that is based off an irrational number such as: the square root of 2:1, as opposed to normal crystals that go off a rational number. (This is stated in the article)

Originally they were strictly synthetic. However, in 2007, a rock containing quasicrystals was eventually found in nature and it created a paradigm shift in the field of crystallography.

After two years of research they have concluded that this rock is of an extraterrestrial origin.

The reason I find this so fascinating is that, what scientists and mathematicians originally thought was man-made and unique had already been in existence in space, and not for just a short period of time either. The article claims that "quasicrystals are one of the first minerals to have formed in the solar system — in the top 250 — long before most of the common minerals found on Earth."

Are we really as creative as we believe?


www.space.com
(visit the link for the full news article)
edit on 4-1-2012 by ErroneousDylan because: Typo



posted on Jan, 4 2012 @ 12:45 PM
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Already a thread in breaking news

Impossible Crystals are 'from space'
www.abovetopsecret.com...

here is a specimen..



From this post
www.abovetopsecret.com...



posted on Jan, 4 2012 @ 01:48 PM
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reply to post by zorgon
 


Ah, I did a search for my title but did not find any thing. In any event, my article contains different information. If the mods feel it necessary to delete, however, that is fine.



posted on Jan, 4 2012 @ 06:17 PM
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Please add any comments to the existing thread found here...

www.abovetopsecret.com...

Thread closed.



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