pregranitic

granite

[gran-it]
noun
1.
a coarse-grained igneous rock composed chiefly of orthoclase and albite feldspars and of quartz, usually with lesser amounts of one or more other minerals, as mica, hornblende, or augite.
2.
anything compared to this rock in great hardness, firmness, or durability.

Origin:
1640–50; < Italian granito grainy. See grain, -ite1

granitic [gruh-nit-ik] , adjective
granitelike, adjective
pregranitic, adjective

granite, granité.
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World English Dictionary
granite (ˈɡrænɪt)
 
n
1.  a light-coloured coarse-grained acid plutonic igneous rock consisting of quartz, feldspars, and such ferromagnesian minerals as biotite or hornblende: widely used for building
2.  great hardness, endurance, or resolution
3.  another name for a stone
 
[C17: from Italian granito grained, from granire to grain, from grano grain, from Latin grānum]
 
'granite-like
 
adj
 
granitic
 
adj
 
'granitoid
 
adj

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Etymonline
Word Origin & History

granite
1646, from Fr. granit(e), from It. granito "granite," originally "grained," pp. of granire "granulate," from grano "grain," from L. granum "grain." In reference to the appearance of the rock. Used figuratively for "hardness" (of the heart, head, etc.) from 1839.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
granite   (grān'ĭt)  Pronunciation Key 
A usually light-colored, coarse-grained igneous rock consisting mostly of quartz, orthoclase feldspar, sodium-rich plagioclase feldspar, and micas. Quartz usually makes up 10 to 50 percent of the light-colored minerals in granite, with the remaining minerals consisting of the feldspars and muscovite. The darker minerals in granite are usually biotite and hornblende. Granite is one of the most common rocks in the crust of continents, and is formed by the slow, underground cooling of magma.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

granite definition


A relatively lightweight igneous rock that makes up most of the Earth's crust beneath the continents. (See basalt, plate tectonics, and tectonic plates.)

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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