Object ID	1997.6.2
Object Name	Granite
Accession#	1997.6
Description	Pink granite is the commonest of all intrusive igneous rocks. It has a total silica content greater than 65%, and a minimum quartz content of 20%. Granite is coarse-grained with crystals larger than 5 mm in diameter. It forms at considerable depth in the earth's crust.
Chemical Comp	Felsic
The Major Collection Name	Rocks and Minerals Collection
Crystal System	Anhedral/Euhedral
How new it might be	1997
Rock type	Igneous
Varieties/Occurrence	Granite and granitoids are the most widespread rocks on the surface of the continents. Geotectonic environment: Large homogeneous or weakly differentiated batholiths having gradational contact with host metamorphic rocks in Precambrian sheilds and ancient basements.
Weight	907 gr

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Last modified on: December 16, 2003