Phlogopite Rifted Mica Splittings

Phlogopite mica naturally rifted into thin splittings suitable for further manufacture, sourced from metamorphic rock deposits. Falls under HTS 2525.10.0050 as 'other' crude mica splittings, excluding book-form packs. Common in production of high-temperature gaskets and composites.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2525.10.00Same rate: 35%

If in book-form or loose pack for agglomerated mica production

Statistical note (b) defines mica splittings specifically for built-up mica manufacture.

6815Lower: 10% vs 35%

If after agglomeration into plates, rods or sheets

Agglomerated (built-up) mica shifts to heading 6815 as non-crude articles.

2530.90.20.00Lower: 27.9% vs 35%

If micaceous iron oxide rather than pure mica

Natural micaceous iron oxides classify under earth colors in heading 2530.

Not sure which classification is right?

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Import Tips & Compliance

Separate splittings from book-pack forms to avoid reclassification as mica splittings under statistical note (b)

Include heat resistance test results in documentation for end-use verification in electronics

Watch for contamination; impure lots may classify as mineral waste rather than crude mica

Related Products under HTS 2525.10.00.50

Muscovite Crude Mica Sheets

Roughly rifted sheets of muscovite mica mined directly from deposits, measuring several inches across with natural cleavage layers. Classified under HTS 2525.10.0050 as crude mica rifted into sheets, not further processed beyond initial splitting. Used primarily as raw material for electrical insulators and laminates.

Indian Ruby Mica Crude Sheets

Premium ruby-colored muscovite mica from India, rifted into crude sheets for capacitor and window applications. HTS 2525.10.0050 covers this as other crude mica not meeting split block specs. Prized for dielectric properties and heat resistance.

Brazilian Biotite Mica Splittings

Biotite mica rifted into loose splittings from Brazilian pegmatites, used in paint extenders and roofing. Under HTS 2525.10.0050 as other crude forms excluding precise split blocks. Lower cost alternative to muscovite with dark coloration.

Bulk Mica Rifted Splittings Pack

Unselected rifted mica splittings in bulk bags, not trimmed to dimensions or thickness tolerances. HTS 2525.10.0050 'other' category captures these intermediate crude forms for grinding or rebuilding. Sourced globally for composite manufacturing.

Madagascar Muscovite Crude Mica

High-grade muscovite mica blocks from Madagascar crudely rifted into workable sheets on-site. Fits HTS 2525.10.0050 as other sheets not precision-split. Valued for clarity in vacuum tube production.

Untrimmed Phlogopite Mica Sheets

Phlogopite mica sheets rifted without edge trimming or dimension control, direct from quarry. HTS 2525.10.0050 other crude category before any fabrication. Essential for flexible laminates in appliances.