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Qingsongite
Qingsongite is a rare boron nitride mineral with cubic crystalline form. It was first described in 2009 for an occurrence as minute inclusions within chromite deposits in the Luobusa ophiolite in the Shannan Prefecture, Tibet Autonomous Region, China.〔 It was recognized as a mineral in August 2013 by the International Mineralogical Association. It is named after Chinese geologist Qingsong Fang (1939–2010).〔 Qingsongite is the only known boron mineral that is formed deep in the Earth's mantle.〔(Qingsongite: New Mineral from Tibet Hard as Diamond ). sciencenews.org. August 5, 2013〕 Associated minerals or phases include osbornite (titanium nitride), coesite, kyanite and amorphous carbon.〔( Pittalwala, Iqbal, ''International Research Team Discovers New Mineral,'' UCR Today, Aug. 2, 2013 )〕 ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Qingsongite」の詳細全文を読む
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