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Scientists have found more than 50 tiny fragments of a meteor that exploded over Russia's Ural Mountains, and preliminary tests are turning up information about its contents.

Scientists have found more than 50 tiny fragments of a meteor that exploded over Russia's Ural Mountains, and preliminary tests are turning up information about its contents.
Divers inspecting it have found nothing at the bottom, but Mr. Grokhovsky said a fragment as large as 20 to 24 inches eventually could be found there.
He said they are less than a half-inch) in size, about 10 percent iron, and belong to the chondrite type, the most common variation of meteorites found on Earth.