Optical Grade Silica Sand from China
Premium natural silica sand with over 95% SiO2 and minimal iron oxide, used for optical glass manufacturing. The sand is washed and sieved only, with no further processing, fitting Chapter 25 Note 1's allowance for mechanical processes.
Duty Rate — China → Canada
0%
Import Tips
• Ensure the sand has not been subjected to heat treatment or chemical purification beyond washing, as this would move it to other headings
• Keep detailed records of the sand's natural origin and processing
• If the sand is used for optical elements, verify it is not a cultured crystal, which is excluded by Chapter 25 Note 2(h)