Table 5.

Representative chemical composition for phyllosilicates coexisting with sudoite.

DickiteIllitePyrophylliteChlorite
(CL-64)(CL-64)(CL-26)(CL-26)(CL-34)(CL-34)(CL-34)
Dickite formulae calculated for O5(OH)4
Illite and pyrophyllite formulae calculated for O10(OH)2
Chlorite formulae calculated for O10(OH)8
IVSi1.982.023.423.283.123.243.783.982.772.72
IVAl0.020.000.580.720.880.860.220.021.231.28
VIAl1.991.941.881.951.971.771.911.951.591.44
Fe0.010.010.090.020.060.080.030.101.823.23
Mg0.000.000.000.110.090.180.120.102.461.20
Na0.000.000.000.110.400.000.000.000.000.00
K0.000.000.730.640.380.830.140.000.000.00