In terms of its physical properties granite is a unique material. These properties lending uniqueness to granite are:
Granite has almost negligible porosity ranging between 0.2 to 4%.
Granite is highly stable thermally, therefore shows no changes with the
change in temperature. Granite is impervious to weathering from
temperature and even from the air borne chemicals. It is the high
resistance to chemical erosion that makes granite useful for making
tanks to store highly caustic material.
Co-efficient of expansion
The co-efficient of expansion for granite varies from 4.7x10-6
9.0x10-6(inch x inch).
Granite shows consistency in color and texture.
It is the hardest building stone and hardness of granite that lends it