Table 2.

Chemical composition of the marble samples.

Sample	Chemical Composition (Weight %)					Density (g·cm−3)
	Na2O	Al2O3	SiO2	K2O	CaCO3
M.B	‒	‒	5.24	‒	94.76	2.82
M.G	‒	‒	3.52	0.325	96.155	2.76
M.T	0.2	0.36	1.52	0.16	97.76	2.71