What's the difference between brookite and rutile?

Brookite


Definition:

  • (n.) A mineral consisting of titanic oxide, and hence identical with rutile and octahedrite in composition, but crystallizing in the orthorhombic system.

Example Sentences:

Rutile


Definition:

  • (n.) A mineral usually of a reddish brown color, and brilliant metallic adamantine luster, occurring in tetragonal crystals. In composition it is titanium dioxide, like octahedrite and brookite.

Example Sentences:

  • (1) Anatase and rutile are titanium dioxides (TiO2) with different crystal lattices.
  • (2) The hydrogen bonding ability of the surfaces of these rutiles were compared with inert rutile and quartz.
  • (3) Only two, both synthetic rutiles, were found to be active.
  • (4) These results suggested that perovskite and rutile existed at the interface between hydroxyapatite and titanium after plasma-spraying and made hydroxyapatite to bond tightly to the titanium.
  • (5) Biological studies of two titanium dioxide polymorphs, rutile and anatase, have produced conflicting results.
  • (6) The binding properties of the active rutile have been found to be consistent with those properties associated with biologically active quartz.
  • (7) Rutile samples containing trace amounts of nickel or chromium had an activity similar to that of pure rutile.
  • (8) An average of 613 million particles, of exogenous origin, per gram of dry lung tissue were found, the major classes of particles being silica, talc, aluminum silicates, and rutile.
  • (9) We exposed rats to an aerosol of either anatase or rutile and determined the TiO2 retention in the lung up to 132 days post exposure.
  • (10) The surface properties of rutile are the determinants of its activity.
  • (11) The other more boxlike crystals (coesite, anatase, and rutile) displayed little change in these parameters.
  • (12) The crystals studied were quartz, tridymite, cristobalite, coesite, anatase, and rutile.
  • (13) The evidence suggests that both anatase and rutile are "nuisance" dusts.
  • (14) Rutile and anatase induced similar effects, and both had a very low biological activity in comparison to alpha-quartz.
  • (15) The biological reactivity of two crystalline forms of titanium dioxide, rutile and anatase, has been compared in in vitro and in vivo assays.
  • (16) Titanium dioxide-polymethacrylate composites were prepared with triethyleneglycol dimethacrylate (TEGDMA), 1,6-bis(methacryloxy-2-ethoxycarbonylamino)-2,4,4-trimeth ylexane (UDMA) and rutile structure titanium dioxide.
  • (17) It has been reported that rutile can be considered "inert".
  • (18) Here we describe an XAS study of divalent cobalt (Co(II)) complexes sorbed on three different solids, gamma-Al2O3, rutile (TiO2) and kaolinite (Al2Si2O5(OH)4).
  • (19) Because natural and synthetic rutiles possess different surface properties, they display different activities.
  • (20) Pure rutile or anatase preparations show only a weak chemiluminescent response.

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