In powder
Quartzite in powder form
HSN 2506 20 20 (quartzite in powder form) is not covered by a Bureau of Indian Standards Quality Control Order and carries no Partner Government Agency clearance requirement at the tariff-line level. Import follows the standard customs procedure: Importer-Exporter Code (IEC), bill of entry, commercial invoice, packing list. Quartzite in other physical forms — blocks, slabs, or roughly trimmed pieces — and quartz products under the same heading may be classified differently, making precise physical-form description on import documentation the primary compliance risk.
The absence of compliance at this tariff line is specific to quartzite in powder form; quartzite blocks and slabs, and quartz (as distinct from quartzite) elsewhere in Chapter 25, are separately classified and may attract distinct obligations. Customs re-classification — triggered by a mismatch between the declared form and the physical examination finding — carries the risk of detention and retrospective duty recovery. Document particle size, mineralogical identity, and processing method to defend the declared classification on examination.