Crude or in irregular pieces, including crushed pumice
Pumice; emery; natural corundum, natural garnet and other natural abrasives, whether or not heat-treated: > Pumice stone > Crude or in irregular pieces, including crushed pumice
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2513.10.00.10
Crude Pumice Stone Blocks
Large, unprocessed blocks of natural pumice stone extracted directly from volcanic deposits, remaining in their crude form without further shaping or sizing. This falls under HTS 2513.10.00.10 as crude pumice in irregular pieces, suitable for industrial grinding or further processing into abrasives. It has not been cut, powdered, or refined beyond initial mining.
Crushed Volcanic Pumice Chunks
Irregular chunks of pumice stone crushed during mining but not further refined, sized roughly 5-15 cm, ideal for tumbling into lapidary abrasives. Classified under HTS 2513.10.00.10 for crude or crushed pumice not cut to dimensions or powdered. Retains natural vesicular structure for filtration and polishing applications.
Mining Crushed Pumice Fines
Coarse fines from pumice quarry crushing operations, irregular pieces under 5 cm retaining natural porosity, not screened or graded for uniformity. Falls under HTS 2513.10.00.10 as crushed pumice in crude state, distinct from powdered forms. Applied in horticulture soil amendment and lightweight concrete.
Unscreened Pumice Quarry Run
Direct-from-quarry pumice mixture of irregular pieces and light crushing, unsorted sizes 2-30 cm for bulk abrasive feedstock. HTS 2513.10.00.10 classification as crude pumice including crushed material, pre-processing stage. Essential raw material for polishing compounds and exfoliants.
Raw Italian Pumice Irregular Pieces
Natural pumice from Lipari Island mines, supplied in irregular hand-broken pieces averaging 10-20 cm, crude form for export to abrasive manufacturers. HTS 2513.10.00.10 covers this as unworked pumice stone, heat-treated only by natural volcanic process. Used primarily in stone washing denim and water filtration.