Spinel Polishing Grit
Synthetic spinel powder used in military optics and satellite lens polishing. Classifies in 7105.90.00.00 as other synthetic semi-precious stone powder.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If ceramic porcelain quality
Technical ceramic spinel classifies under Chapter 69, not gems.
If in finished pearls/beads
Imitation pearls of synthetic spinel fall under heading 7116.
If base metal colorant grade
Synthetic color compounds from spinel classify as chemicals.
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Import Tips & Compliance
• ITAR/EAR export controls may apply to defense end-use
• Refractive index certification proves optical gem quality
• Military contract invoices require end-user statements
Related Products under HTS 7105.90.00.00
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