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tridymite

NOUN
  1. a mineral form of silica

How To Use tridymite In A Sentence

  • Because there is a significant difference in crystal structure among the three forms, cooling tridymite or crystoballite below 572°F results in metastable forms that retain the high temperature structure.
  • It is these high-temperature forms of silica crystals, specifically cristobalite and tridymite, that Forrest's team found in planet-forming disks around other stars for the first time. SPACE.com
  • Quartz, tridymite and cristobalite are the three most common types of crystalline silica. Undefined
  • But they were surprised to find cristobalite and tridymite crystals, because they require flash-heating events, such as shock waves, to form. SPACE.com
  • Quartz paramorphs after tridymite are absent from Fiachanis but present in the three Priomh-lochs samples adjacent to late minor intrusions.
  • People will generally be very concerned about the effects of ash, and questions usually arise about the content of the ash, particularly regarding the minerals quartz, cristobalite, or tridymite. Volcanic Ash -- Effects on Health and Mitigation Strategies
  • The abundant and ubiquitous quartz paramorphs after tridymite in the walls attest to a very shallow emplacement depth.
  • Although the optical, SEM, and XRD data are consistent with quartz, considering the incongruous crystal symmetry, it is likely that this mineral is actually a quartz pseudomorph after tridymite.
  • It is this high-temperature form of silica crystals, specifically cristobalite and tridymite, that Forrest's team found in planet-forming disks around other stars for the first time. Universe Today
  • These other forms of silica include opal, chalcedony, flint and chert (non-crystalline), and cristobalite, tridymite, coesite, and stichovite. Quartz
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