- Red Iron Oxide
- Red Iron Oxide is the most versatile colorant. You should do a longer line blend series with iron oxide.
- Iron Oxide is most commonly used anywhere from 1/2-12%
- Rutile
- Rutile is made up of titanium & iron
- It produces many different colors and textures
- It will cause glazes to be more satin, matt and dry
- When doing line blends or glaze tests use Rutile in percentages from 1-14%
- Copper Carbonate
- Above 3% many glazes will produce a dark green metallic color
- may make interesting red/green/blue in others
- It is a strong flux
- When doing line blends or glaze tests use copper carbonate in increments from 1/2-9%
- Cobalt Carbonate
- Very expensive and very potent (a little goes a LONG way)
- 3% concentration of cobalt will give a black (bluish) metallic and very intense
- 1% is the most you will use in most glazes as it will produce a strong dark blue in most scenarios
- When doing line blends or glaze tests use cobalt carbonate in increments from 1/4-3%
- Cobalt Carbonate is a very strong flux
- Manganese Dioxide
- Strong flux that volatilizes actively
- Goes very dark to black/brown at around 4%
- may give purples, burgundy, violet pinks in low percentages
- When doing line blends or glaze tests use Manganese in increments ranging from 1/4-4%
- Chrome Oxide
- Very refractory
- Dries up glazes
- Very volatile
- very stong greens
- When zinc is present the glaze goes towards tans and browns
- When doing line blends or glaze tests use chrome oxide in increments between 1/4-1%
- Illmenite Milled
- Produces very interesting earthy textures — tan/brown orangish
- Another form of titanium, iron and manganese
- When doing line blends or glaze tests use illmenite in increments between 2-12%
- Nickel Carbonate
- Very refractory
- Dries up glazes
- Gives subtle greens, greys, blues, smoky blues
- Good modifier of cobalt
- When doing line blends or glaze tests use nickel carbonate in increments between 1/4-1% Don’t go over 1%