World's oldest tiny zircon at 4.4 billion years A tiny piece of rock 4.4 billion years old went on display in Wisconson (USA) Sunday for one day only. A jazz band played music, with rocks for percussion, which they said might be appropriate for displaying the bit of zircon crystal, barely two human hairs wide. The tiny gem was found in Australia in 1984, and analyzed in 2001 by experts, and has led to the reappraisal of early Earth . University of Madison (Wisconson) geophysicist Professor John Valley said his work proved the crystal could only have formed in a low-temperature environment. The exhibit was under police guard. The tiny sliver will return to Australia with a professor from Curtin University of Technology in Perth , who discovered it in 1984. It will go to a museum.
 A tiny piece of rock 4.4 billion years old went on display in , Sunday for one day only. A jazz band played music, with rocks for percussion, which they said might be appropriate for displaying the bit of crystal, barely two human hairs wide. The tiny gem was found in in 1984, and analyzed in 2001 by experts, and has led to the reappraisal of early . geophysicist Professor John Valley said his work proved the crystal could only have formed in a low-temperature environment. The exhibit was under police guard. The tiny sliver will return to Australia with a professor from in , who discovered it in 1984. It will go to a museum.
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World's oldest tiny zircon at 4.4 billion years
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Wisconson (USA)
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zircon
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Australia
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Earth
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University of Madison (Wisconson)
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Curtin University of Technology in Perth
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