Tourmaline Abrasive Powder
Natural tourmaline dust for specialty polishing of hardened steels and ceramics. HTS 7105.90.00.00 covers other natural semi-precious stone powders.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If mineral earth grade
Earths containing tourmaline classify under Chapter 25 if not gem quality.
If imitation jewelry components
Fashion jewelry of base materials imitating stones under 7117.
Not sure which classification is right?
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Import Tips & Compliance
• Piezoelectric properties require special ESD handling declarations
• Brazilian/Chinese sources have different purity profiles
• Water-soluble boron content testing recommended
Related Products under HTS 7105.90.00.00
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Fine synthetic diamond powder where 90% or more passes through a 0.5 mm sieve, used for industrial grinding and polishing applications. Classified under HTS 7105.90.00.00 as powder of synthetic precious stones (diamonds). Meets subheading note definition for 'powder form'.
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