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De - Pt| English Dictionary: hornblende | by the DICT Development Group |
| 3 results for hornblende | |
| From WordNet (r) 3.0 (2006) [wn]: | |
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| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Amphibole \Am"phi*bole\ ([acr]m"f[icr]*b[omac]l), n. [Gr. 'amfi`bolos doubtful, equivocal, fr. 'amfiba`llein to throw round, to doubt: cf. F. amphibole. Ha[81]y so named the genus from the great variety of color and composition assumed by the mineral.] (Min.) A common mineral embracing many varieties varying in color and in composition. It occurs in monoclinic crystals; also massive, generally with fibrous or columnar structure. The color varies from white to gray, green, brown, and black. It is a silicate of magnesium and calcium, with usually aluminium and iron. Some common varieties are {tremolite}, {actinolite}, {asbestus}, {edenite}, {hornblende} (the last name being also used as a general term for the whole species). Amphibole is a constituent of many crystalline rocks, as syenite, diorite, most varieties of trachyte, etc. See {Hornblende}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Hornblende \Horn"blende`\, n. [G., fr. horn horn + blende blende.] (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. {Hornblende schist} (Geol.), a hornblende rock of schistose structure. | |
