Emery
- hematite
The principal form of iron ore; consists of ferric oxide in crystalline form; occurs in...
- magnetite
An oxide of iron that is strongly attracted by magnets.
Also contains
- iron
A heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts;...
- taconite
A variety of chert containing magnetite and hematite; mined as a low-grade iron ore.
- lepidocrocite
A red to reddish brown mineral consisting of iron oxide hydroxide; often found in...
- goethite
A red or yellow or brown mineral; an oxide of iron that is a common constituent of rus...
- ruddle
A red iron ore used in dyeing and marking.
- chamosite
A greenish grey or black silicate of iron and aluminum.
- limonite
A widely occurring iron oxide ore; a mixture of goethite and hematite and lepidocrocit...
- siderite
Iron ore in the form of ferrous carbonate.