Silica Quartz Lumps
High-silica quartz lumps for ferrosilicon production in metallurgy. These are quartz other than sands, falling under tariff item 2506.10.00 as a key metallurgical flux material, unprocessed beyond mining and crushing.
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 |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the quartz is used as a flux in ferrosilicon production and is pre-mixed with other materials
Prepared fluxes or mixtures may fall under Chapter 72.
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
• Confirm the lumps are not mixed with other minerals or chemically treated
• Provide a silica content certificate and end-use declaration for CBSA
Related Products under Tariff item 2506.10.00
Artificial Silica Sand for Tableware Crystal Glass
High-spec quartz-derived sand with over 96% silica and low iron, produced artificially for lead-free crystal glass in tableware. This is not natural sand but a processed product, falling under tariff item 2506.10.00 as quartz other than natural sands.
Clear Quartz Crystals
Clear quartz crystals in their natural, unworked state, suitable for optical or piezoelectric applications before any processing. These are raw quartz, not gems or worked stones, and fall under tariff item 2506.10.00 as quartz other than natural sands.
Glass Grade Silica Sand 96% Purity
Crushed and screened quartz sand with 96% silica and 0.5% max iron oxide, standard for container and automotive glass. This artificial product fits tariff item 2506.10.00 as processed quartz sand, not natural sand.
High-Purity Quartz Chunks
High-purity quartz chunks with over 99.9% SiO2, minimally processed for electronics industry feedstock. These are unworked quartz other than sands, meeting the chapter note 1 criteria of being crushed or ground without further processing.
High-Purity Silica Sand for Glass Manufacturing
Artificial silica sand with over 95% silica and less than 0.6% iron oxide, produced by crushing and washing quartz to remove impurities. It is classified under tariff item 2506.10.00 as processed quartz sand, other than natural sands.
Low-Iron Silica Sand for Flat Glass Production
Manufactured from crushed quartzite, this sand has 97% silica and 0.2% iron oxide max, for clear float glass sheets in windows and mirrors. It falls under tariff item 2506.10.00 due to its artificial processing and compliance with purity specifications.