Split block mica
Mica, including splittings; mica waste: > Crude mica and mica rifted into sheets or splittings > Split block mica
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 2525.10.00.10
Split Block Muscovite Mica
Split block muscovite mica consists of thin sheets of muscovite mica, not exceeding 0.508 mm in thickness, split and selected within a 0.203 mm tolerance but not cut or stamped to specific dimensions. This crude form is ideal for further processing into electrical insulators or glazing due to its dielectric properties and heat resistance. It falls under HTS 2525.10.0010 as it precisely matches the definition of split block mica.
Split Block Phlogopite Mica Sheets
Phlogopite split block mica is rifted into uniform thin sheets under 0.508 mm thick, selected to tight tolerances without further shaping. Prized for superior thermal stability up to 1000°C, it's used in high-temperature gaskets and furnace linings. Classified in HTS 2525.10.0010 for its unworked split block form per chapter definitions.
Industrial Grade Split Block Mica
Industrial split block mica is crude mica split into precise thin laminae under 0.508 mm, toleranced to 0.203 mm, ready for manufacturing into components. Commonly sourced from India or Madagascar, it's essential for capacitors and peizo devices. HTS 2525.10.0010 covers this unprocessed form explicitly excluding cut or stamped products.
Premium Clear Split Block Mica
Premium clear split block mica features high optical clarity in sheets ≤0.508 mm thick, split to exact tolerances without shaping. Used in vintage stove windows and scientific instruments for its transparency and durability. Meets HTS 2525.10.0010 criteria as unworked split block per statistical note (a).
High Purity Split Block Mica Flakes
High purity split block mica flakes are meticulously split to under 0.508 mm thickness with 0.203 mm uniformity, free of inclusions for sensitive applications. Essential precursor for semiconductor wafer spacing and RF windows. HTS 2525.10.0010 applies to this rifted, unselected crude form.