Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The most common mineral in the amphibole group, CaNa(Mg,Fe)4(Al,Fe,Ti)3Si6O22(OH,F)2 commonly green to black, found in igneous and metamorphic rocks.

from The Century Dictionary.

  • noun A common mineral, crystallizing in the monoclinic system with a prismatic angle of 124½°.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Min.) 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.
  • noun (Geol.) a hornblende rock of schistose structure.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A green to black amphibole mineral, of complex structure, formed in the late stages of cooling in igneous rock.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a green to black mineral of the amphibole group; consists of silicates of calcium and sodium and magnesium and iron

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[German : Horn, horn (from Middle High German, from Old High German; see ker- in Indo-European roots) + Blende, blende; see blende.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From German Hornblende, from Horn ("horn") + Blende (see blende).

Examples

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