Cut Tufa Stone Slabs
Tufa, a porous calcareous stone formed by mineral springs, is sawn into flat slabs for use in garden walls and decorative landscaping features. It fits HTS 6802.29.10.00 as a non-marbly calcareous building stone that is simply cut or sawn with even surfaces.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold as marble slabs
If misidentified as marble (despite calcareous nature), it shifts to the marble subheading.
If in block form exceeding one cubic meter
Very large blocks of any natural stone fall under heading 6801, not processed worked stone.
If crude or unworked
Unprocessed calcareous stone like limestone is classified under Chapter 25 as mineral products, not worked articles.
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Import Tips & Compliance
• Include lab analysis confirming tufa as calcareous stone distinct from alabaster or travertine
• Declare exact dimensions to prove flat/even surfaces from simple sawing; avoid bundling with mortar
Related Products under HTS 6802.29.10.00
Planed Lithographic Limestone Slabs
Fine-grained lithographic limestone (calcareous Solnhofen type) sawn flat for potential printing or architectural use. Excluded litho stones are 8442, but building slabs stay in 6802.29.10.00.
Sawn Cement Rock Stone Blocks
Cement rock, an argillaceous calcareous limestone for cement production but usable as building stone, sawn into blocks. HTS 6802.29.10.00 if simply cut for monumental/building purposes.
Sawn Dolomitic Limestone Panels
Dolomitic limestone with predominant calcite (calcium carbonate) is sawn into panels for veneers and garden features. HTS 6802.29.10.00 for calcareous (calcite-rich) stone simply worked.
Cut Coquina Shellstone Blocks
Coquina, a limestone from cemented seashells (calcareous), is cut into blocks with flat faces for rustic walls and fireplaces. Fits HTS 6802.29.10.00 as simply sawn calcareous building stone.
Sawn Limestone Building Blocks
These are rectangular limestone blocks, simply sawn with flat surfaces, used primarily for constructing exterior walls and facades in residential and commercial buildings. Classified under HTS 6802.29.10.00 as calcareous stone (limestone is primarily calcium carbonate) that is other than marble, travertine, or alabaster, and worked only by simple cutting or sawing without further shaping.
Sawn Coral Rag Stone Panels
Coral rag, a calcareous limestone from fossilized coral reefs, is cut into panels with flat surfaces for coastal building projects and retaining walls. Under HTS 6802.29.10.00 for its calcareous composition and simple sawn processing as building stone.