Leucite Ore Feldspar from Mexico
Feldspar extracted from leucite-rich volcanic rocks, used in specialty ceramics requiring high potash flux. Classified as feldspar under HTS 2529.10.00.00 despite leucite association, as primary mineral is feldspar.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Conduct XRF analysis to quantify K-feldspar vs leucite ratios for accurate heading declaration
• Declare volcanic ash content if present, as it may trigger agricultural quarantine inspections
• Use magnetic separation certificates to confirm low iron for premium ceramic applications