In chunks of rock quarried from a Russian mountain range, physicists have found perfect “quasicrystals,” a type of material that researchers previously thought could only be created in a lab. [...] Quasicrystals were first created in the lab in 1984, and physicist Paul Steinhardt, a coauthor of the current study, says the hunt for naturally occurring quasicrystals began about 10 years ago. [...] One of those samples was a mineral called khatyrkite that contained tiny grains of an alloy made of aluminium, copper, and iron, and which was found in the Koryak Mountains in Siberia. As researchers explain in their study, published in Science, the khatyrkite’s diffraction patterns almost exactly matched those of synthetic quasicrystals made in the lab.
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