goethite

goethite has 2 senses in the JumbleFix dictionary. Letters: 8.

Definitions

• n.. A hydrous oxide of iron, occurring in prismatic crystals, also massive, with a fibrous, reniform, or stalactitic structure. The color varies from yellowish to blackish brown.
• n.. a red or yellow or brown mineral; an oxide of iron that is a common constituent of rust