Any of the oxides of iron, especially ferric oxide.
Ferrous oxide; corrosion of iron by oxidation of the surface; rust; iron oxide is available in three forms; red, brown and yellow; it is known under a variety of names, such as Red Oxide, Jewelers Rouge, Venetian Red, Ferric Oxide, Indian Red, Red Ochre, Mineral Rouge, Spanish Oxide, and Turkey Red.
The naturally-occurring pigment giving a brick-red color. Also an impurity in the various earthen ingredients used in the making of ceramics.
A compound consisting of iron (Fe) combined with oxygen (O). It is the rust you see on iron or steel left exposed to oxygen in the air. Hematite (Fe2O3) and Magnetite (Fe3O4) are minerals of iron oxide.
a common compound of iron and oxygen, also known as rust.
A chemical found in many rocks, which is formed by iron reacting with oxygen. Also known as rust.
A fine rust (corrosion) powder used as a coating on memory storage devices such as a computer hard disk.
iron oxides are used in pigments both manmade and natural. Eg Venetian red (haematite) Magnetite(Fe304) or a mixture of oxides make black or purple pigments. The umber’s sienna’s and ochre’s are oxides or hydrated oxides of a yellow to chestnut colour.
A component of pottery clay, present in the range 0.5-15 weight per cent. The main oxide responsible for the fired colour of the clay (q.v. carbon, hematite, magnetite, and boxes p.42, 89)
A reddish-brown compound of iron and oxygen, commonly known as rust, and seen on the surface of iron objects.
A naturally occurring compound of iron and oxygen. Used as a natural colorant.
A natural mineral pigment.
One of a potters favorite colorants, when combined with the right glaze and firing, iron oxide can produce greens, browns, blacks, yellows, oranges, subtle blues and grays. Most of the best color responses for iron in a glaze need a reduction firing. Iron is also a useful colorant in clay bodies and is best introduced by adding high iron clays to the clay recipe.
An oxide of iron. Often used as a pigment source in coatings and toppings. The natural occurring state of steel.
A red, brown or yellow pigment consisting of the oxides of iron.
One of several chemical compounds formed of iron and oxygen, often lending a reddish color to a substance.