Marble is so dense IRL. If you take a tiny tiny little pole and smack marble it will make the loudest sound you ever heard. Imagine using a super upgraded super epic pickaxe made out of the same material. Even though the game is not real life it does have some aspects that remind us of such.

"Is marble high or low density?
Marble is also famous for its antibacterial and hypoallergenic properties, which make it particularly popular among homeowners with allergies, but also among families with small children. Its high density and low porosity, in fact, do not retain bacteria and allergens, especially if associated with specific treatments."