Gypsum and coal
Copper slag grit, copper slag
A4 paper, zeolite
Silica sand, red oxide, yellow ochre powder
Limestone, clinker & gypsum.
Terracotta pots,clay pots
Copper slag or garnet, copper garnet, copper slag
Medicinal herbs, mica
Charcoal, & quartz
Silica sand, resin
Chemicals like lithium hexafluorophosphate, silica
Fertilizers like urea, rock phosphate, ammonium sulphate
Gypsum, coal
Perlite, coal, niche high value - electronic products
Zinc oxide & magnesium carbonate & feldspar
Coal, gbfs slag, shale
Feldspar, steel
Himalayan salt, gypsum
Sulphur bentonite
Soda ash and silica sand