Quartz (other than natural sands); quartzite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape
4 declarable lines
Heading 2506 covers quartz that is not natural sand, and quartzite, including quartzite that has been roughly trimmed or cut into blocks or slabs of rectangular or square shape. It splits first by material, quartz under 2506.10 and quartzite under 2506.20, then by grade or working: silica and iron oxide content for quartz, and crude versus further-worked for quartzite. All four lines are duty free under the general (MFN) rate.
Products in this heading
- Crushed quartz rock for industrial use
- High-purity quartz lump with low iron oxide content
- Quartzite blocks sawed into rectangular blocks
- Roughly trimmed quartzite for facing or flooring
- Quartz chips and granules from broken rock (not natural sand)
- Quartzite slabs cut by sawing
How to choose the right subheading
- Material: quartz (2506.10) versus quartzite (2506.20).
- For quartz, whether it is natural sand, which is excluded and goes to heading 2505.
- For quartz, silica content by weight of 95% or more and iron oxide content of 0.6% or less, which sets 2506.10.00.10.
- For quartzite, whether the stone is crude or roughly trimmed rather than further cut or worked.
- Whether the stone is in blocks or slabs of rectangular or square shape, which the heading allows.
Often confused with
- Heading 2505Natural sand of any kind, including quartz sand dug as sand
Natural sands are named in heading 2505 and are excluded from 2506.
- Heading 2516Granite blocks and slabs
Granite is monumental or building stone of heading 2516, not quartzite.
- Heading 2515Marble and travertine blocks
Calcareous stone of specific gravity 2.5 or more is classified in heading 2515.
- Heading 2517Pebbles, gravel and crushed stone for concrete or road use
Aggregate and ballast stone is covered by heading 2517.
- Heading 2526Talc and natural steatite
Steatite and talc are separate from quartz and quartzite in heading 2526.
Frequently asked questions
What is the HTS code for quartz that is not natural sand?
Quartz other than natural sands is classified under 2506.10.00.50, with a general (MFN) rate of Free. If the quartz contains 95% or more silica and not more than 0.6% iron oxide, use 2506.10.00.10, also Free.
What is the duty on quartzite blocks?
Crude or roughly trimmed quartzite falls under 2506.20.00.10 and pays a general (MFN) rate of Free. Other quartzite, such as stone cut beyond rough trimming, goes under 2506.20.00.80, also Free.
How do I classify quartz rock that has been crushed?
Crushed quartz rock that is not natural sand is classified in 2506.10.00.50 at a general (MFN) rate of Free. If it meets the silica and low iron limits, classify it in 2506.10.00.10, also Free.
Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.