WVGESTrace Minerals in West Virginia Coals

Click Here To Go To Trace Elements Framed Home Page Rutile/anatase: Titanium oxide (TiO2)

SEM photomicrograph of 1-2 Ám rutile grains in a shale parting in the Stockton coalRutile contains no trace elements, but is a common trace mineral in coal of detrital origin and is generally closely associated with other detrital minerals, as in the SEM photomicrograph shown here (dots at the bottom of the photograph are each 10 µm apart).  Submicron rutile grains mainly occur within clay mineral partings, but may also be present in minor amounts throughout generally low mineral matter coals where they are likely windblown in origin.  Here 1-2 µm rutile grains are shown within clay minerals, mainly illite, containing a chalcopyrite crystal and small fragmented organic coal particles.
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