Qingsongite

Qingsongite

Crystal structure
General
Category Native element minerals: nitrides
Formula
(repeating unit)		 BN
Crystal system Cubic
Crystal class Hextetrahedral (43m)
H-M symbol: (43m)
Space group F43m
Unit cell a = 3.61 Å; Z = 4
Identification
Crystal habit Inclusions in chromium-rich rocks
Other characteristics Not radioactive, non-magnetic
References [1]

Qingsongite /ˈtʃɪŋsɒŋaɪt/ 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.[1] It was recognized as a mineral in August 2013 by the International Mineralogical Association. It is named after Chinese geologist Qingsong Fang (1939–2010).[1] Qingsongite is the only known boron mineral that is formed deep in the Earth's mantle.[2] Associated minerals or phases include osbornite (titanium nitride), coesite, kyanite and amorphous carbon.[3]

References

  1. 1 2 3 Qingsongite on Mindat.org
  2. ↑ Qingsongite: New Mineral from Tibet Hard as Diamond. sciencenews.org. August 5, 2013
  3. ↑ Pittalwala, Iqbal, International Research Team Discovers New Mineral, UCR Today, Aug. 2, 2013
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