Barite processing beyond beneficiation

Barium processing beyond beneficiation

Blast furnace slag processing

Desiccants, activated clay, manufacturing

Diatomaceous earth processing beyond beneficiation

Feldspar processing beyond beneficiation

Flint processing beyond beneficiation

Fuller's earth processing beyond beneficiating

Graphite, natural (e.g., ground, pulverized, refined, blended), manufacturing

Kaolin, processing beyond beneficiation

Lead, black (i.e., natural graphite), ground, refined, or blended, manufacturing

Magnesite, crude (e.g., calcined, dead-burned, ground), manufacturing

Mica processing beyond beneficiation

Perlite aggregates manufacturing

Perlite, expanded, manufacturing

Pumice (except abrasives) processing beyond beneficiation

Pyrophyllite processing beyond beneficiation

Shale, expanded, manufacturing

Silicon, ultra high purity, manufacturing

Talc processing beyond beneficiation