HS Code for Piezoelectric quartz

Piezoelectric quartz is classified under HS code 7104.10. This classification is found in Chapter 71, which covers precious or semi-precious stones and metals. Subheading 7104.10 specifically addresses synthetic or reconstructed quartz. While natural quartz is found in Chapter 25, the quartz used for piezoelectric purposes in modern electronics is almost exclusively synthetic, grown in high-pressure autoclaves to ensure a lack of impurities and consistent crystalline structure. The \"piezo-electric\" designation in this heading applies to quartz that has been worked (cut, sawn, or ground) into plates, bars, or other shapes suitable for electronic use, but—crucially—it has not yet been mounted with electrodes or placed in a holder. Once the quartz is mounted, it migrates to Chapter 85 (specifically 8541.60). Therefore, 7104.10 acts as the classification for the high-purity raw material or the semi-finished crystal blanks. This distinction is important for manufacturers who import crystal blanks to perform the final assembly and mounting. The classification ensures that the material is treated as a synthetic stone rather than a finished electronic component, which often carries different tariff implications and regulatory requirements. It also covers synthetic quartz that is not yet worked, provided it is intended for these technical applications.

Products Included

• Synthetic quartz crystal blanks
• Unmounted piezoelectric quartz plates
• Cultured quartz in bars or rods
• Worked synthetic quartz for electronic use
• Synthetic quartz stones, unmounted

Common Misclassification

Piezoelectric quartz is often misclassified under 8541.60, which is reserved for crystals that have already been mounted with electrodes. It may also be confused with natural quartz (2506.10), but 7104.10 is specifically for synthetic or reconstructed material, which is the standard for piezoelectric applications.

FAQ

What is the HS code for Piezoelectric quartz?

The HS code for synthetic or reconstructed piezoelectric quartz, whether or not worked but unmounted, is 7104.10.

Is natural quartz classified under this code?

No, natural quartz is classified under HS code 2506.10, unless it is a precious or semi-precious stone, in which case it falls under 7103.