Muscovite Mica flake and powder from local mica mine, processed for oil well drilling, roofing felts.

Mica Chemical composition:

SiO2:   43--45%                               Na2O:   0.95--1.8%

K2O:   9--11%                                  Fe2O3: 2--6%

Al2O3: 20--33%                               P+S:     0.02--0.05%

MgO:   1.3--2%                                H2O:     0--0.13%

Particle size distribution:                                                                  

20mesh           +20               +40           +60       +100       -100

                            0.1              52.4           38.1       8.1           1.3

40Mesh             +40               +60           +100            -100

                               0.3               64.9           32.3            2.5

80mesh             +60             +100             +325           -325

                            1.2               32.4               39.6             5.0

Mica flake