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granite

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

Granite \Gran"ite\ (gr[a^]n"[i^]t), noun [It. granito granite, adjective, 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.

Note: Varieties containing hornblende are common. See also the {Note} under {Mica}.

{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.

From The Collaborative International Dictionary of English v.0.48 [gcide]:

Syenite \Sy"e*nite\, noun [L. Syenites (sc. lapis), from Syene, Gr. ?.] (Min.) (a) Orig., a rock composed of quartz, hornblende, and feldspar, anciently quarried at Syene, in Upper Egypt, and now called {granite}. (b) A granular, crystalline, ingeous rock composed of orthoclase and hornblende, the latter often replaced or accompanied by pyroxene or mica. Syenite sometimes contains nephelite (elaeolite) or leucite, and is then called {nephelite (elaeolite) syenite} or {leucite syenite}.

From WordNet (r) 3.0 (2006) [wn]:

granite

noun

1: plutonic igneous rock having visibly crystalline texture; generally composed of feldspar and mica and quartz

2: something having the quality of granite (unyielding firmness); "a man of granite"


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