brookite definition

  • noun:
    • A mineral form of titanium dioxide, TiO2, having characteristic orthorhombic crystals and a red-brown to black color.
    • A dark brown mineral type of titanium dioxide, utilizing the chemical formula TiO2.
    • A mineral consisting of titanic oxide, and therefore identical with rutile and octahedrite in structure, but crystallizing in orthorhombic system.
    • One of the three kinds which titanium dioxid takes place in nature.

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  • Sentence for "brookite"
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