Sanstone
Sandstone is a sedimentary rock made mainly of sand-sized mineral particles like quartz.
It forms over time as layers of sand are compacted and cemented together.
It is commonly used in construction, paving, and making buildings.
Granite
Granite is an igneous rock mainly composed of quartz, feldspar, and mica.
It forms from the slow cooling of magma beneath the Earth’s surface.
It is commonly used as a building material and for making monuments and countertops.
Limestone
Limestone is a sedimentary rock mainly composed of calcium carbonate (CaCO₃).
It forms over millions of years from the remains of marine organisms.
It is widely used in making cement, building materials, and lime.
