Nonmetallic mineral
Nonmetallic mineral means any of the following minerals or any mixture of which the majority is any of the following minerals: (1) Crushed and Broken Stone, including Limestone, Dolomite, Granite, Traprock, Sandstone, Quartz, Quartzite, Marl, Marble, Slate, Shale, Oil Shale, and Shell. (2) Sand and Gravel. (3) Clay including Kaolin, Fireclay, Bentonite, Fuller's Earth, Ball Clay, and Common Clay. (4) Rock Salt. (5) Gypsum (natural or synthetic). (6) Sodium Compounds, including Sodium Carbonate, Sodium Chloride, and Sodium Sulfate. (7) Pumice. (8) Gilsonite. (9) Talc and Pyrophyllite. (10) Boron, including Borax, Kernite, and Colemanite. (11) Barite. (12) Fluorospar. (13) Feldspar. (14) Diatomite. (15) Perlite. (16) Vermiculite. (17) Mica. (18) Kyanite, including Andalusite, Sillimanite, Topaz, and Dumortierite.