The chemical composition of rutile mainly includes: TiO2, Ti60%, sometimes containing Fe, Nb, Ta, Cr, Sn, etc.; its name source: Rutlle; from Latin Rutilus, referring to red, symbolizing the color of rutile.
Its main features are: its quadrilateral column shape, twin crystal, color as the identification feature; can be distinguished from cassitopires; insoluble in acid, add sodium carbonate to be melted, it can be dissolved in silicic acid, if you add Hydrogen peroxide can turn the solution into yellow.
Because it is formed under high temperature conditions, it is mainly produced in the rutile-containing quartz veins of the metamorphic rock series and in the pegmatite veins. In addition, it appears as a secondary mineral in igneous rocks and is often found in gneiss in granular form; rutile is often converted into sand ore after weathering due to its chemical stability.
Rutile as a by-mineral is produced in rocks such as granite, pegmatite, gneiss, mica schist and eclogite, and is also distributed in sedimentary rocks or sediments in the form of clastic or sand minerals. Rutile is mainly used to extract titanium and make white pigments.
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