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| Gneissoid granite | Granite \Gran"ite\ (gr[a^]n"[i^]t), n. [It. granito granite, adj., grainy, p. p. of granire to make grainy, fr. L. granum grain; cf. F. granit. See {Grain}.] (Geol.) A crystalline, granular rock, consisting of quartz, feldspar, and mica, and usually of a whitish, grayish, or flesh-red color. It differs from gneiss in not having the mica in planes, and therefore in being destitute of a schistose structure. [1913 Webster] Note: Varieties containing hornblende are common. See also the {Note} under {Mica}. [1913 Webster] {Gneissoid granite}, granite in which the mica has traces of a regular arrangement. {Graphic granite}, granite consisting of quartz and feldspar without mica, and having the quartz crystals so arranged in the transverse section like oriental characters. {Porphyritic granite}, granite containing feldspar in distinct crystals. {Hornblende granite}, or {Syenitic granite}, granite containing hornblende as well as mica, or, according to some authorities hornblende replacing the mica. {Granite ware}. (a) A kind of stoneware. (b) A Kind of ironware, coated with an enamel resembling granite. [1913 Webster] |
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