日本で初めて天然ダイヤモンド発見 | 英語のニュース

National News

First Japanese natural diamond found

Researchers at Nagoya University said Sept. 10 they have discovered a natural diamond for the first time in Japan in volcanic rock in Ehime Prefecture. It was originally thought that diamonds do not occur naturally in Japan. The discovered diamond cannot be observed even using a microscope as its size is about one-thousandth of a millimeter. (Kyodo)

Shukan ST: Sept. 21, 2007

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National News First Japanese natural diamond found Researchers at Nagoya University said Sept. 10 they have discovered a natural diamond for the first time in Japan in volcanic rock in Ehime Prefecture. It was originally thought that diamonds do not occur naturally in Japan. The discovered diamond cannot be observed even using a microscope as its size is about one-thousandth of a millimeter. (Kyodo) Shukan ST: Sept. 21, 2007 (C) All rights reserved