Definition of stishovite in English:



mass noun
  • A mineral that is a dense polymorph of silica and is formed at very high pressures, especially in meteorite craters.

    • ‘They could not determine the composition of the object, but they surmise that it might be a large blob of silicate material from the mantle enriched by about 25 percent stishovite.’
    • ‘Furthermore, we provide experimental confirmation of the prediction that the transition from stishovite to the CaCl 2 type structure near 50 GPa is accompanied by an elastic instability.’
    • ‘In order to explore the release ‘isentrope’ we also re-traced the loading curve backwards for stishovite and alpha-quartz cases only.’
    • ‘Here we use in situ Raman spectroscopy and a new theoretical model to investigate the high-pressure behaviour of stishovite.’


1960s: from the name of Sergei M. Stishov, 20th-century Russian chemist, + -ite.