Industrial Quartz Block
Sawn rectangular blocks of quartz intended for laboratory equipment or high-temperature crucibles, in raw form without further fabrication. These blocks are not optical or synthetic quartz, and they fall under the tariff item as 'other' quartz merely cut into rectangular shapes.
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 blocks are fabricated into specific laboratory or industrial parts
Worked mica and articles of mica, including fabricated quartz components, fall under heading 68.14 when they are shaped or finished for specific uses.
If the blocks are quartzite rather than quartz
Quartzite blocks, whether or not roughly trimmed, are classified under the quartzite subheading of heading 25.06.
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
• Ensure the blocks are not processed into specific laboratory or crucible parts, as finished articles would be classified elsewhere
• Provide a detailed description of the raw state and intended use to support classification
• Check if the blocks meet purity standards for industrial use, as this may affect customs valuation
Related Products under Tariff item 2506.10.00
Architectural Quartz Block
Large rectangular blocks of high-purity quartz, sawn from natural deposits for use in building facades or wall panels, supplied in raw, unpolished form. These blocks are merely cut by sawing, meeting the tariff item's scope for quartz other than natural sands, and are not further processed into finished articles.
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.
Brazilian Quartz Slab
Premium rectangular slabs sawn from Brazilian quartz deposits, roughly cut for export and valued for their clarity in subsequent fabrication. The slabs are not polished or further worked, fitting the tariff item's description of quartz merely cut into rectangular shapes.
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.