Depending on the environment where it is formed, limestone can take on unique structural shapes: grainy, crystalline, and clastic. It either forms through the deposition of fossils in the marine environment during the sedimentation process.

Owing to its composition and formation, limestone tends to be an attractive building material used over centuries. One of the highly favoured aesthetical characters of the limestone comes from its structure. The fossils encased in it are microscopic and don’t make the stone highly visible. This is good news for those who love minimalistic interior designs. There are a few exceptions though.