Crushed Pumice Stone for Abrasive Cleaning
Crushed pumice stone is a naturally occurring volcanic rock used as an abrasive for cleaning surfaces like pots, ovens, and industrial equipment. It falls under HTS 2513.10.0080 as 'other' pumice stone that is not solely for grinding or polishing millstones, heat-treated or not. The irregular granules provide effective scrubbing without scratching.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If ground, pulverized, or formed into grinding wheels
Pumice processed beyond simple crushing into millstones or abrasive articles falls under Chapter 68 as artificially produced or worked abrasives.
If in raw, uncrushed blocks over 3kg
Unprocessed pumice stone in large pieces is classified under heading 2512 as siliceous fossil meals including diatomite and tripolite.
If for refractory use in high-temperature furnaces
Pumice prepared specifically as refractory material containing over 50% alumina or silica is classified in Chapter 69.
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Import Tips & Compliance
• Verify the pumice is natural and not synthetically produced to avoid reclassification under Chapter 68 worked abrasives
• Provide geological origin certificates if heat-treated to confirm it remains classifiable as natural pumice
• Avoid common pitfalls by ensuring no further processing like binding into wheels, which shifts to heading 6804
Related Products under HTS 2513.10.00.80
Pumice Powder for Metal Polishing
Fine pumice powder derived from natural pumice stone, used as a mild abrasive for polishing metals, jewelry, and lapidary work. Classified under HTS 2513.10.0080 as 'other' pumice, distinct from millstone-specific uses. Its porous structure allows gentle material removal without excessive scratching.
Tumbled Pumice Pebbles for Stone Washing
Smooth, tumbled pumice pebbles used in textile stone-washing processes to create distressed denim effects. Falls under HTS 2513.10.0080 as 'other' pumice stone, a natural abrasive not limited to millstones. The rounded shape prevents fabric damage while providing abrasion.
Heat-Treated Pumice Granules for Water Filtration
Heat-treated pumice granules optimized for porosity in water filtration systems and aquariums. Classified in HTS 2513.10.0080 as 'other' pumice stone, permissible even if heat-treated per heading terms. Enhances biological filtration through natural porous structure.
Natural Pumice Blocks for Hand Scrubbing
Solid natural pumice blocks used for personal care like removing calluses and dead skin on feet. HTS 2513.10.0080 covers this 'other' pumice stone as a natural abrasive. Lightweight and porous for effective yet gentle exfoliation.
Pumice Grit for Sandblasting Media
Coarse pumice grit sized for low-pressure sandblasting to clean masonry and delicate surfaces. Falls under HTS 2513.10.0080 as 'other' natural pumice abrasive. Provides gentler blasting than quartz or garnet.
Volcanic Pumice for Horticultural Soil Amendment
Graded volcanic pumice used to improve soil aeration and drainage in horticulture and hydroponics. Classified HTS 2513.10.0080 as pumice stone with abrasive properties, though used agriculturally. Natural porosity retains moisture while preventing compaction.