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Brownleeite : ウィキペディア英語版
Brownleeite

Brownleeite is a silicide mineral with chemical formula MnSi. It was discovered by researchers of the Johnson Space Center in Houston while analyzing the Pi Puppid particle shower of the comet 26P/Grigg-Skjellerup.
== Overview ==
The particles where collected from the stratosphere over south-western USA in April 2003 using an ER-2 high-altitude research aircraft of the NASA. The team of researchers from USA, Germany and Japan was led by NASA scientist Keiko Nakamura-Messenger.〔(University of Washington News of Juni 12, 2008 )〕〔(Newswise: Like a Rock: New Mineral Named for Astronomer ) Retrieved on June 15, 2008〕
To determine the mineral's origin and examine other dust materials, a new transmission electron microscope was installed in 2005 at Johnson Space Center.〔(NASA News Releases June 12, 2008: NASA Finds New Type of Comet Dust Mineral )〕
The mineral name was approved by the International Mineralogical Association (IMA Nummer 2008-011).〔(Minerals approved by the IMA-CNMNC in June 2008 )〕 The NASA scientists named the mineral after Donald E. Brownlee, professor of astronomy at the University of Washington, Seattle.〔(Universe Today June 12, 2008: Alien Mineral From Comet Dust Found in Earth's Atmosphere )〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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