Leucite Crystals for Research
Hand-selected leucite crystals from volcanic deposits, used in geological research and as reference standards in mineralogy labs. These unworked natural leucite specimens, each weighing under 2.5 g, fall under this tariff item as crude leucite, consistent with Chapter 25 notes.
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 crystals are polished or worked
Worked precious or semi-precious stones fall under Chapter 71.
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
• Declare the crystals as natural, unworked leucite for research purposes, and keep documentation of their intended use
• If the crystals are part of a collection or set, check if other headings apply
• Verify that no chemical treatment has been applied, as this could change classification
Related Products under Tariff item 2529.30.00
AF Sodalite Nepheline Syenite
AF-grade nepheline syenite containing sodalite inclusions, used in low-expansion glass-ceramics. This natural mineral product is distinguished by inclusion analysis and falls under this tariff item as a natural form of nepheline syenite, consistent with Chapter 25 notes.
Canadian Blue Earth Nepheline Syenite
Blue Earth deposit nepheline syenite from Ontario, known for consistent alumina content in ceramics. This pure mineral import is in a crude or physically processed state, consistent with Chapter 25 notes, and falls under this tariff item as natural nepheline syenite.
Feldspar-Nepheline Syenite Blend
A natural blend of nepheline syenite and feldspar, with a dominant nepheline syenite content (30-70% nepheline), used in sanitaryware and electrical porcelain production. The product is in a crude or physically processed state, consistent with Chapter 25 notes, and is classified under this tariff item due to its primary nepheline syenite characteristics.
Fine Ground Nepheline Syenite 10 Micron
Fine ground nepheline syenite with a 10 micron D50, used for high-end coatings and adhesives. The ultra-fine grind is a physical process allowed under Chapter 25 notes, and the product retains its natural mineral status, falling under this tariff item.
Ground Nepheline Syenite Powder
Finely ground nepheline syenite powder derived from igneous rock deposits, primarily composed of nepheline, albite, and microcline feldspar. The product is ground, a physical process allowed under Chapter 25 notes, and falls under this tariff item as a natural mineral.
K1-K Feldspar Nepheline Syenite
Premium K-feldspar rich nepheline syenite from Canadian deposits, ground to 325 mesh for glass manufacturing. The product is ground, a physical process allowed under Chapter 25 notes, and falls under this tariff item as a natural leucite-nepheline rock.