Table 3.

Representative chemical composition for sudoite and mixed layers (calculated for O10(OH)8) from sample CL-64.

Dickite-sudoiteMica-sudoite
———Sudoite ———— mixed layers —mixed layers
12345678910
IVSi3.263.293.313.363.403.463.423.453.473.35
IVAl0.740.710.690.640.600.540.580.550.530.65
VIAl2.862.232.872.802.882.903.163.242.972.32
Fe0.581.090.620.660.550.500.410.370.460.99
Mg1.501.881.411.421.421.391.131.041.261.95
K0.000.000.000.090.000.060.000.000.000.23
Fe/(Fe+Mg)0.280.290.310.320.280.270.270.260.270.34
∑oct4.945.204.904.874.854.794.704.654.695.25