Why are marbles used in making buildingbut not chalks thoughboth of themare formed from the same material calcite?

Why are marbles used in making buildingbut not chalks thoughboth of th

1.	Why are marbles used in making buildingbut not chalks thoughboth of themare formed from the same material calcite?
Answer» Marble is metamorphosed limestone, ie subjected to heat and pressure, the crystals grow and INTERLOCK, forming a stronger rock, more suitable for a building material. Sometimes MINERALS in the original limestone are still visible as swirls of colour in the marble Chalk is FORMED in a deep marine environment from the shells of microscopic algae which flourish near the surface, but die and fall to the seafloor. The kind of chalk used in old-style classrooms and lecture theatres scrapes off a thin layer of FINE white dust as they are scraped over the abrasive surface of a "blackboard" thats the reason hope this will help you please mark as brainliest answer please