Formula: FeTiO3 or FeO.TiO2
Alternate Names: Illmenite, Ferrous Titanate, Iron Titanate
|If this formula is not unified correctly please contact us.|
|DENS - Density (Specific Gravity)||4.80|
|HMOH - Hardness (Moh)||6.0|
|GSPT - Frit Softening Point||1365C|
Like rutile, ilmenite is quite variable in nature. You can tell the difference between granular rutile and granular ilmenite by doing a smear test against an abrasive surface (i.e. an unglazed white tile). The rutile will be tan or brown, the ilmenite will be black or dark brown. Likewise, under a microscope the ilmenite will be an opaque black whereas the rutile crystals will be somewhat translucent or transparent.
Ilmenite can be used in small amounts (-1%) to produce dark brown specks in bodies and specialized glazes. It also is used in combination with rutile to develop characteristic rutile break glazes; it seeds crystals in titania glazes.
You should consider testing each batch of this material you get by mixing it with a boron frit and firing a button of it high enough to create a pool of glass. Variations in chemistry will be immediately evident.
Glaze Crystallization - Seeding
Ilmenite seeds crystals in titania glazes.
Glaze Variegation - Rutile Breaking Effect
Ilmenite can be used with rutile to produce classic rutile-breaking glazes. Use up to 2% ilmenite.
An illmenite colored glaze (GR6-H) at cone 6 oxidation
0.5% fine granular illmenite added to Ravenscrag cone 6 clear glossy white base glaze.
Out Bound Links
Hazards of this material in the ceramic industry and process
A plagioclase feldspar rock containing ilmenite.
Ilmenite is a black colored heavy ore of iron and titanium. It is closely related to rutile. Material of up to 15% iron and other contaminants (and therefore 85% titanium) is called rutile whereas mat...
In Bound Links
Illmenite Granular, Granular Illmenite, Granular Iron Titanate