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. This product falls under tariff item 2525.10.00 as mica rifted into sheets, commonly sourced from India or Madagascar.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the mica is agglomerated into plates
Agglomerated mica products fall under Chapter 68.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the mica is split but not further processed into finished components
• Document the thickness tolerance to confirm classification
• Keep records of the source and processing steps for CBSA verification
Related Products under Tariff item 2525.10.00
Biotite Mica Splittings
Biotite mica splittings rifted into loose sheets for industrial grinding, prior to any powdering or further processing. This product falls under tariff item 2525.10.00 as crude mica rifted into sheets or splittings, not yet subjected to processes beyond rifting.
Crude Muscovite Mica
Natural crude muscovite mica mined directly from deposits, consisting of unprocessed sheets or blocks with irregular shapes and thicknesses. This product falls under tariff item 2525.10.00 as crude mica that has not been further rifted, cut, or processed beyond extraction.
High Purity Split Block Mica Flakes
High purity split block mica flakes meticulously split to under 0.508 mm thickness with 0.203 mm uniformity, free of inclusions for sensitive applications. This product falls under tariff item 2525.10.00 as crude mica rifted into sheets, essential precursor for semiconductor wafer spacing and RF applications.
Indian Muscovite Crude Mica
Crude muscovite mica blocks sourced from Indian deposits, unrifted and irregular in shape. This product falls under tariff item 2525.10.00 as crude mica, not yet rifted into sheets or splittings, and is a dominant global source for electrical and paint grade processing.
Lepidolite Crude Mica
Crude lepidolite mica ore containing lithium, extracted in block form without rifting. This product falls under tariff item 2525.10.00 as crude mica, distinguished from lithium concentrates, and is primarily imported for lithium extraction and ceramic applications.
Madagascar Phlogopite Sheets
Phlogopite mica sheets rifted from Madagascar blocks, noted for golden color and flexibility. This product falls under tariff item 2525.10.00 as mica rifted into sheets, pre-split block processing, used in furnace windows and gaskets.