Goethite

[gәuθait]

解释:

(noun.) a red or yellow or brown mineral; an oxide of iron that is a common constituent of rust.

录入:内德--From WordNet

解释:

(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.

伊妮德编辑