First Natural Occurrence of Coesite

@article{Chao1960FirstNO,
  title={First Natural Occurrence of Coesite},
  author={E. Chao and E. Shoemaker and B. Madsen},
  journal={Science},
  year={1960},
  volume={132},
  pages={220 - 222}
}
  • E. Chao, E. Shoemaker, B. Madsen
  • Published 1960
  • Geology, Medicine
  • Science
  • Coesite, the high-pressure polymorph of SiO2, hitherto known only as a synthetic compound, is identified as an abundant mineral in sheared Coconino sandstone at Meteor Crater, Arizona. This natural occurrence has important bearing on the recognition of meteorite impact craters in quartz-bearing geologic formations. 

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