Granite and Limestone
Granite is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture. The word "granite" comes from the Latin granum, a grain, in reference to the coarse-grained structure of such a holocrystalline rock. Granite is more than just a durable stone. It's beautiful, too. Its coloration can range from pink to grey and because it can contain elements of a variety of minerals, there is a diversity and subtlety to its shading.
Limestone is a carbonate sedimentary rock that is often composed of the skeletal fragments of marine organisms such as coral, foraminifera. Its major materials are the minerals calcite and aragonite, which are different crystal forms of calcium carbonate.
