Writing in IOP Publishing's journal Reports on Progress in Physics, Paul J Steinhardt and Luca Bindi reveal that new, naturally occurring quasicrystal samples have been found in an environment that does not have the extreme terrestrial conditions needed to produce them, therefore strengthening the case that they were brought to Earth by a meteorite. Furthermore, their findings reveal that the samples of quasicrystals were brought to the area during the last glacial period, suggesting the meteorite was most likely to have hit Earth around 15 000 years ago.
katesisco wrote:While the article states these crystals are meteoric, I wonder if their creation in an energy originating on or close to the surface of the Earth is possible?
Well given that they come from out there and we've no reason
yet to suspect that they could be formed naturally Earthside, there is little reason in speculating on such. Bit like looking for what might cause some alleged instance of paranormal activity even though a simple hoax is where the evidence points, or what might have powered the Roswell craft even though the evidence says there was no crashed spaceship. It's mostly a superfluous exercise.
Hope is but the first step upon the road to disappointment.