Optical Grade Fluorspar Crystals from United States
Optical Grade Fluorspar Crystals are natural fluorspar crystals selected for >97% CaF2 purity, used in lens manufacturing and spectroscopy. They fall under tariff item 2529.22.00 as unworked high-purity fluorspar mineral, provided they are not polished or worked beyond mechanical processes.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the crystals are not worked or polished, as such processing may exclude them from Chapter 25
• Verify the CaF2 content exceeds 97% by weight
• Confirm the crystals are not considered precious or semi-precious stones, which are excluded by Chapter 25 note 2(g)