Feldspar
Feldspar; leucite, nepheline and nepheline syenite; fluorspar: > Feldspar
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2529.10.00.00
Potassium Feldspar Powder
Potassium feldspar, also known as orthoclase, is a common rock-forming mineral mined and ground into powder for use as a flux in ceramic glazes and porcelain production. This product falls under HTS 2529.10.00.00 as it is natural feldspar that has been crushed and milled but remains chemically unchanged, classified specifically as feldspar in Chapter 25.
Sodium Feldspar Lumps
Sodium feldspar (albite) in lump form is extracted from pegmatite deposits and used primarily in glass manufacturing as a source of alumina and silica. Classified under HTS 2529.10.00.00 as raw feldspar, it has undergone minimal processing like crushing to lump size without chemical alteration.
Ceramic Grade Feldspar
High-quality feldspar graded for ceramics, with low iron content to prevent discoloration in tiles and sanitaryware. It is natural feldspar plug for sanitaryware glazes under HTS 2529.10.00.00, as it remains an unprocessed aluminosilicate mineral.
Glass Grade Feldspar Powder
Feldspar finely milled to uniform particle size for soda-lime glass production, providing network formers without further refinement. Falls under HTS 2529.10.00.00 as it's crude feldspar, not chemically synthesized.
Leucite Ore Feldspar
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.
Nepheline Syenite Feldspar Blend
Blended feldspar from nepheline syenite deposits, offering low iron and high alkali for paint extenders and ceramics. HTS 2529.10.00.00 applies to the dominant feldspar component in this natural mineral product.