/* volumetric heat capacity of MgO
/* T(K), C(J/cm^3-K)
73.62	0.309763
88.77	0.549642
105.51	0.841448
121.57	1.13984
142.03	1.54283
161.39	1.84511
190.51	2.29554
220.34	2.67713
253.74	2.99138
300.68	3.37298
323.15	3.45528
373.15	3.67226
423.15	3.83837
523.15	4.16459
623.15	4.23493
723.15	4.35015
823.15	4.43694
923.15	4.50428