Ilmenite
Iron & Titanium Oxide
Formula: FeTiO3 or FeO.TiO2
| DENS - Density (Specific Gravity) |
4.80 |
| HMOH - Hardness (Moh) |
6.0 |
| MLPT - Melting Point (MP) |
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.
Mechanisms
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.
Out Bound Links
- (URLs)
Illmenite at Wikipedia
http://en.wikipedia.org/wiki/Ilmenite - (Materials - Related)
Rutile - TiO2 - Iron Titanium Mineral
- (Materials - Related)
Hematite - High iron mineral
- (Hazards - General)
Titanium Dioxide
Hazards of this material in the ceramic industry a... - (Minerals - Parent mineral)
Anorthosite
A plagioclase feldspar rock containing ilmenite. - (Typecodes)
1: GNM - Generic Material
- (Typecodes)
1: FLS - Flux Source
- (Minerals - Mineral equivalent)
Illmenite
Ilmenite is a black colored heavy ore of iron and ... - (MDT - Member)
UK
We are working on this database and would apprecia... - (MDT - Member)
Crystal Glazes
These materials are specially defined for makers o...
In Bound Links
Pictures
An illmenite colored glaze (GR6-H) at cone 6 oxidation
XML for Import into INSIGHT
<?xml version="1.0" encoding="UTF-8"?>
<material name="Ilmenite" descrip="Iron & Titanium Oxide" searchkey="Illmenite, Ferrous Titanate, Iron Titanate" loi="0.00" casnumber="12168-52-4">
<oxides>
<oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="49.410" tolerance=""/>
<oxide symbol="FeO" name="Ferrous Oxide" status="" percent="50.590" tolerance=""/>
</oxides>
</material> | 
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