hornblende [hawrn-blend] EXAMPLES|WORD ORIGIN noun a dark-green to black mineral of the amphibole group, calcium magnesium iron and hydroxyl aluminosilicate.
Origin of hornblende From German, dating back to 1760–70; see origin at, Related formshorn·blen·dic, adjective Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 Examples from the Web for hornblende Historical Examples of hornblende
The minerals at contact are quartz, biotite, magnetite and hornblende.
The magnetic iron ore is associated with hornblende and quartzite.
William Henry Ruffner
Brown hornblende, like that of the camptonites, occurs in many of them.
White crystals of felspar in a dark base of hornblende and felspar.
Diorite is a crystalline aggregate of a soda-felspar and hornblende.
British Dictionary definitions for hornblende hornblende noun a black or greenish-black mineral of the amphibole group, found in igneous and metamorphic rocks. Composition: calcium magnesium iron sodium aluminium aluminosilicate. General formula: (Ca,Na) 2.3 (Mg,Fe,Al) 5 Si 6 (Si,Al) 2 O 22 (OH) 2 Derived Formshornblendic, adjectiveWord Origin for hornblende C18: from German Horn horn + blende Collins English Dictionary – Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Word Origin and History for hornblende n.
1796, from German Hornblende, from horn (see(n.)) + blende (see ).
The term “Hornblende” is an old German name for any dark, prismatic crystal found with metallic ores but containing no valuable metal (the word “Blende” indicates “a deceiver”) [Herbert Bucksch, “Dictionary Geotechnical Engineering,” 1995] Online Etymology Dictionary, © 2010 Douglas Harper hornblende in Science hornblende [hôrn′blĕnd′] A common, green to black mineral of the amphibole group. It has a variable composition and occurs in monoclinic crystals with a hexagonal cross-section, in fibrous forms, or in granular forms. Hornblende is found in many metamorphic and igneous rocks. Chemical formula: (Ca,Na)2-3(Mg,Fe,Al)5(Al,Si)8O22(OH)22. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.