lepidocrocite
Noun
Meaning
a red to reddish brown mineral consisting of iron oxide hydroxide; often found in iron ores together with goethite
Source: WordNetSynonyms
rust
magnetite
limonite
goethite
hematite
akaganeite
ferrihydrite
maghemite
amorphous iron oxide
ferric hydroxide
iron gel
iron oxide gel
ferroxyhyte
iron oxyhydroxide
geothite