Sawn Oolitic Limestone Slabs
Oolitic limestone, composed of calcareous ooids, is sawn into slabs with even surfaces for countertops and cladding in architecture. HTS 6802.29.10.00 applies to this simply worked calcareous stone excluding specified exclusions.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If calcareous but identified as alabaster
Alabaster, a fine-grained calcareous variety, has a separate subheading.
If pebbles or irregular shapes for pathways
Unworked or roughly broken calcareous pebbles stay in Chapter 25.
If of slate or other non-calcareous stone
Slate mosaic or worked articles use different subheadings despite similar use.
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Import Tips & Compliance
• Provide petrographic reports differentiating oolitic limestone from marble by lack of crystallization
• Ensure no backing or assembly; pure slabs only for this code
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.
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.