The meaning of Hornblende and additional information.

Hornblende(n.) The common black, or dark green or brown, variety of amphibole. (See Amphibole.) It belongs to the aluminous division of the species, and is also characterized by its containing considerable iron. Also used as a general term to include the whole species.

Hornblendic(a.) Composed largely of hornblende; resembling or relating to hornblende.