Definition of rockbridgeite in English:

rockbridgeite

noun

Mineralogy
  • An iron-containing mineral which occurs as dark green or black masses and crusts (turning brown in air owing to oxidation) in deposits of limonite and pegmatite.

Origin

1940s. From the name of Rockbridge County, Virginia, location of the first specimens to be recognized + -ite.

Pronunciation

rockbridgeite

/ˈrɒkbrɪdʒʌɪt/