Natural Wollastonite Abrasive Powder
Micronized wollastonite mineral (calcium silicate) from natural deposits, used as mild abrasive in toothpaste and polishing compounds. HTS 2513.20.9000 includes such 'other natural abrasives' valued for low hardness (5-5.5 Mohs).
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold primarily as mineral filler, not abrasive
Heading 2530 covers mineral earths/substances; end-use as filler vs abrasive determines.
If purified calcium silicate chemical
High-purity synthetic versions classify as Chapter 28 silicates.
If incorporated into bonded grinding tools
Wollastonite grains in wheels/belts become Chapter 68 products.
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Import Tips & Compliance
• Provide particle size analysis (e.g
• -325 mesh) and acicular morphology description
• Ensure no chemical modification; surface-treated versions may go to Chapter 38
• Avoid classifying as 'earths' under 2530 if abrasive use predominant
Related Products under HTS 2513.20.90.00
Natural Garnet Abrasive Grit
Coarse angular grains of natural almandine garnet mined from alluvial deposits, heat-treated for consistent hardness. Classified under HTS 2513.20.9000 as 'other natural abrasives' distinct from pumice, fitting the category for raw mineral abrasives used in surface preparation.
Heat-Treated Natural Corundum Powder
Fine powder derived from naturally occurring corundum ore, thermally treated to enhance friability for polishing applications. Falls under HTS 2513.20.9000 as 'other natural abrasives,' encompassing mineral corundum excluding crude forms.
Natural Olivine Sand Abrasive
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Picrophyllite Natural Abrasive
Rare natural picrophyllite (magnesium phyllosilicate) crushed for specialty soft abrasives in optical polishing. Classifies in HTS 2513.20.9000 as other natural abrasives with Mohs hardness ~3.
Natural Emery Coarse Grain
Crushed and screened grains from natural emery rock, a corundum-garnet mixture from Naxos deposits. HTS 2513.20.9000 covers this as 'other natural abrasives,' heat-treated or not, for use in tumbling and blasting.
Almandine Garnet Sandblasting Media
Washed and sized almandine garnet sand from Indian river deposits, optimized for paint removal in surface prep. Classed in HTS 2513.20.9000 as natural garnet abrasive, distinguished by angularity and silica-free nature.