Limonite is the name for a group of hydrated iron oxides. It is often formed during the weathering of biotite rich rocks. It is one of the major ores of iron and has been used to make pigment since the stone age.
Limonite is the name for a group of hydrated iron oxides. It is often formed during the weathering of biotite rich rocks. It is one of the major ores of iron and has been used to make pigment since the stone age.
