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In 1912 the Russian geologist Ivan Popov discovers deposits of the valuable mineral Irenite ("moonstone") in the Pamir region. During the years of Soviet power, an expedition of the USSR Aca... Read allIn 1912 the Russian geologist Ivan Popov discovers deposits of the valuable mineral Irenite ("moonstone") in the Pamir region. During the years of Soviet power, an expedition of the USSR Academy of Sciences is sent to these places .In 1912 the Russian geologist Ivan Popov discovers deposits of the valuable mineral Irenite ("moonstone") in the Pamir region. During the years of Soviet power, an expedition of the USSR Academy of Sciences is sent to these places .