Quartz ore, quartz lumps
Silica sand
Raw gypsum
Graphite rods and blocks, graphite blocks, graphite rods
Mica powder
Silica sand
Graphite rods
Activated bentonite
Expanded perlite
Processed skim iron slag
Mica
Granulated and ground blast furnace slag
River sea silica sand
Fumed silica
Himafine or calcined china clay, clay
Silica sand
Potash feldspar and sodium feldspar, feldspar
Gypsum
Quartz powder
Mica flakes, mica