Question

How do you melt marble?

Answer 1

MARBLE has generally low chemical reactivity. Is non-combustible. Decomposes at high temperature (825°C) to give gaseous carbon dioxide and calcium oxide (quicklime).So we have to heat it at this temperature

Answer 2

$\huge\bold\red{hey\:mate\:here\:is\:your\:answer}$

Marble You can't melt marble at surface pressures, it decomposes into calcium oxide and CO2. If you had a very high pressure crucible and a means of heating it, you could melt marble and re-crystallize it. ... You need a pressure equivalent to about 20km of rock, and a temperature about 400 degrees C.