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Granular Rutile

Oxide Analysis Formula
SiO2 1.00% 1.00
ZrO2 1.00% 0.49
Fe2O3 1.00% 0.38
TiO2 97.00% 72.96
Oxide Weight 6,010.00
Formula Weight 6,010.00


Processed rutile ore (upgraded to 95%+ TiO2 by smelting). Available in a variety of sizes. It can be used at a speckling agent in glazes, however it settles quickly because of the high specific gravity. It can also be used as a speckling agent in bodies, try around 0.2% to start.

Related Information

Possible to grind your own ceramic grade rutile?

Yes, the granular and powdered grades or pure rutile are the same material. But grinding it is very difficult. Commercial ceramic grade powder is minus 325 mesh, the companies doing this obviously have very good grinding equipment. They also have patience because even in this efficient porcelain ball mill, 90 minutes was only enough to get 50% to minus 325 mesh! The color of the powder is a good indication of its quality, the finer the grind the lighter tan it will be.


Typecodes Colorant
Metallic based materials that impart fired color to glazes and bodies.
Materials Rutile
Materials Ilmenite
Materials Granular Ilmenite
Materials Manganese Granular
Materials Magnetite Granular
Materials Ceramic Rutile


Glaze VariegationGranular rutile is popular as a specking agent. Start with 0.2%. This material is heavy and will settle in glaze with a thin slurry.

By Tony Hansen

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