HTS US: 2506.XX.XXXX
Description
This heading covers quartz in various forms except natural sands, as well as quartzite, whether roughly trimmed or simply cut by sawing or other methods into blocks or slabs of rectangular (including square) shape. These materials are widely used in industries such as glassmaking, foundry work, and construction.
- Quartz Sands: Includes sands that contain 95 percent or more silica by weight and not more than 0.6 percent of iron oxide, excluding natural sands.
- Quartzite: Natural metamorphic rock mainly composed of quartz, presented in crude or roughly trimmed forms or further processed into blocks or slabs.
Code Hierarchy
- Section II: Vegetable Products (Chapters 06-14)
- Chapter 25: Salt; Sulfur; Earths and Stone; Plastering Materials, Lime and Cement
- Heading 2506: Quartz (other than natural sands); quartzite, whether or not roughly trimmed or merely cut into blocks or slabs of a rectangular (including square) shape
- US HTS Code (10-digit):
2506.XX.XXXX– The last digits specify the exact material and form.
Detailed Breakdown of Subheadings
The 6-digit HTS heading 2506 is subdivided into specific 8-digit and 10-digit codes to identify quartz sands and quartzite in their various forms.
| HTS Code | Description | Examples & Notes |
|---|---|---|
| 2506.10.00 | Quartz | General category for quartz sands and related products. |
2506.10.00.10 |
Sands (other than natural) containing by weight 95 percent or more of silica and not more than 0.6 percent of oxide of iron | High-purity quartz sands used in industrial applications. |
2506.10.00.50 |
Other quartz products | Includes quartz sands not meeting the above purity criteria or processed quartz materials. |
| 2506.20.00 | Quartzite | Quartzite in raw or processed block/slab form. |
2506.20.00.10 |
Crude or roughly trimmed quartzite | Natural quartzite that has not been finely cut or processed. |
2506.20.00.80 |
Other quartzite | Quartzite blocks or slabs cut by sawing or other means into rectangular shapes. |
What is NOT Classified Here?
To ensure proper classification, the following are excluded from this heading:
- Natural sands: Natural quartz sands are excluded from this heading and classified elsewhere.
- Other minerals and stones: Stones other than quartz and quartzite, or those shaped differently than rectangular blocks or slabs, fall under different headings.
- Processed glass or synthetic materials: Manufactured glass products or synthetic quartz materials are not covered here.
Notes
- Industrial Use: Quartz sands with high silica content are critical in glassmaking, casting molds, and other manufacturing processes requiring purity and consistent grain size.
- Processing Forms: Quartzite may be imported in crude form for further processing or as sawn blocks/slabs ready for construction or decorative use.
- Duty Rates: Tariff rates vary depending on the specific subheading and use; consult the current Harmonized Tariff Schedule for exact duty percentages or rates.
Declaration Example
Product: A shipment of high-purity quartz sand containing 96% silica and less than 0.6% iron oxide.US HTS Code:
2506.10.00.10Unit of Quantity: Metric Ton
General Duty Rate: Please refer to the latest USHTS for applicable rates
Additional Requirements: May require certification of purity for industrial use; verify with import regulations.
Related HTS Codes
- HTS 2505: Slag, dross, and similar industrial by-products.
- HTS 2515: Marble, travertine, and other calcareous monumental or building stone.
- HTS 2520: Gypsum; anhydrite; plasters.
