Septarian Calcareous Stone Slabs from Mexico
Septarian nodules processed into rectangular calcareous stone slabs for decorative building elements, with specific gravity 2.5+. This unique patterned stone fits HTS 2515.20.00.00 as other calcareous monumental stone.
Duty Rate — Mexico → United States
13%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• XRF analysis to confirm dominant calcareous composition over other minerals
• Pattern consistency declaration prevents disputes over uniformity
• Handle fragile nodules carefully to avoid breakage reclassification