![Milled Rutile 200 mesh](http://psh.ca/cdn/shop/products/MREMB_2_1686088d-4803-457d-a977-ac6d5352dab2_{width}x.jpg?v=1618234401)
Ruflux 61. 200 mesh rutile. 94-96% TiO2. Rutile is a natural source of titanium dioxide used in glazes. Increasing amounts cause glaze opacity and, eventually, matte surfaces. Titanate crystallization on cooling can lead to interesting, variegated surfaces. The small % of iron in rutile tends to promote yellowish colours. Other sources of TiO2 for glazes include ilmenite, a ferrous titanate, and pure, white titanium dioxide.
For more information on rutile, see the Digitalfire.com Reference Library of ceramic materials.