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Gneissoid granite
(gcide) | 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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