Table 2. Relaxed surface and attachment energy of Calcite.

	Surface energy (J.m−2)			Attachment energy (eV)
Surface (Hexagonal indices)	Raiteri's forcefield	Xiao's forcefield	Other results a	Raiteri's forcefield	Xiao's forcefield	Other results a
	0.71	0.51	0.59	−11.34	−8.69	−7.82
	1.11	0.76	1.39	−33.91	−24.58	−30.24
	1.04	0.64	0.97	−33.29	−14.37	−78.86
	1.61	1.63	1.23	−11.92	−30.63	−31.89
	1.36	0.97	1.14	−17.88	−24.58	−28.72
	4.85	1.56		−206.70	−100.78

^{a 14}