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Granite
1. Granite.
2.
• Granite is acommon type
intrusive igneous
rock with granular
texture. By
definition, granite
is an igneous rock
with at least 20%
quartz and up to
65% feldspar .
3.
Now graniteexist only on
Earth where it
forms a large
part of the
continental
crust .
4.
Granite is anatural source
of radiation,
like most
natural stones.
5.
Granite iswidely used as
a finishing
material.