They are thought to be characteristic of the great series of batholiths that stretch from Alaska and British Columbia to Mexico, via Idaho and California. Smaller masses of these types of granites are also found in many sites in British Tertiary rocks and in the Oslo region of Norway. They have been extensively quarried in northern Nigeria. The minerals in granite are interlocked like the pieces in a jigsaw puzzle. The grains of the minerals are very large, sometimes measuring as much as half a centimetre in width.
Granite is a very strong and durable rock.
It is used in the construction of buildings and tombstones. In the building industry, granite is used for pillars, flooring and making kitchen platforms.