Table 2. Saturation Indices and Ratios of Different Mineral Solids in Seawater at 25 °C and pCO₂ = −3.38 atm.

Phase	Composition	Saturation Index, SI	Saturation Ratio, Ω
Aragonite	CaCO3	0.52	3.311
Artinite	Mg2CO3(OH)2·6H2O	–1.97	0.011
Brucite	Mg(OH)2	–1.84	0.014
Calcite	CaCO3	0.67	4.677
Dolomite	CaMg(CO3)2	3.26	1819.7
Huntite	CaMg3(CO3)4	1.99	97.72
Hydromagnesite	Mg5(CO3)4(OH)2·4H2O	–3.38	0.0004
Lansfordite	MgCO3·5H2O	–1.64	0.023
Magnesite	MgCO3	0.97	9.333
Nesquehonite	MgCO3·3H2O	–2.07	0.009