Definitions for "goethite"
Keywords:  feo, yellowish, iron, oxide, hfeo
an oxide of iron.
A hydrous oxide of iron (HFeO2), occurring in prismatic crystals, also massive, with a fibrous, reniform, or stalactitic structure. The color varies from yellowish to blackish brown.
an oxide mineral with the chemical formula of alpha-FeO*OH
Keywords:  ferrallitic, see
see ferrallitic