Table 1 Minerals identified by XRD in samples AL3T, AL3B, and AL3crust.
Mineral, phase | Formula |
|---|---|
Oxides and hydroxides | |
Hematite | Fe2O3 |
Silicates/Clay | |
Quartz | SiO2 |
Kaolinite | Al2Si2O5(OH)4 |
Montmorillonite | Na0.3(Al, Mg)2Si4O10(OH)2*H2O |
Muscovite | KAl2(AlSi3O10)(OH)2 |
Illite | (K0.71Ca0.01Na0.01)(Al1.86Mg0.15Fe0.04)(Si3.27Al0.73)O10(OH)2) |
Clinochlore | (Mg, Fe, Al)6(Si,Al)4O10(OH)8 |
Wollastonite | CaSiO3 |
Sulfates | |
Gypsum | Ca(SO4)(H2O)2 |
Epsomite | MgSO4(H2O)7 |
Hexahydrite | Mg(SO4)(H2O)6 |
Ferricopoapite | Fe4.67(SO4)6(OH)2*20H2O |
Alunogen | Al2(SO4)3*17H2O |
Mascagnite | (NH4)2SO4 |
Boussingaultite | (NH4)2(Mg(H2O)6)(SO4)2 |
Koktaite | (NH4)2Ca(SO4)2*(H2O) |
