Granite is a kind of igneous rock, found on Earth but nowhere else in the Solar System. It is formed from hot, molten magma. It’s color ranges from pink to grey, according to the proportions of its minerals.

The magma is forced between other layers of rock by the pressure under the Earth’s surface. The magma cools and turns slowly into solid stone. Granite has many different types of minerals in it. These include quartz, feldspar, hornblende, and sometimes mica. As the magma cools, these minerals form crystals. The crystals can be seen easily if the granite is cut and polished.

Excavation is performed through the expertise of a mechanical excavator with the attachment of hydraulic rock breaker of 20 tons capacity with 150mm diameter chisel.