Coal Combustion Products

Cobalt

Columbium (See Niobium)

Copper

Corundum (See Abrasives)

Diamond

Diatomite

Dolomite (See Dimension Stone)

Explosives

Feldspar

Ferroalloys

Fluorspar

Fuller’s Earth (See Clays)

Gallium

Garnet

Gemstones

Germanium

Gold

Granite (See Crushed Stone and Dimension Stone)

Graphite

Gypsum

Hafnium (See Zirconium)

Helium

Indium

Iodine

Iridium (See Platinum Group Metals)

Iron and Steel

Iron and Steel Scrap

Iron and Steel Slag

Iron Ore

Iron Oxide Pigments

Kaolin (See Clays)



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