Goethite
[gәuθait]
解釋/意思:
(noun.) a red or yellow or brown mineral; an oxide of iron that is a common constituent of rust.
錄入:内德--From WordNet
解釋/意思:
(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.
伊妮德編輯