Chapter 2506 — Customs Tariff Headings
Subheadings
Products classified under Tariff item 25.06
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.
2506.10.00Artificial 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.
2506.10.00Brazilian 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.
2506.10.00Clear 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.
2506.10.00Glass 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.
2506.10.00High-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.
2506.10.00High-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.
2506.10.00Industrial 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.
2506.10.00Low-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.
2506.10.00Natural Quartz Pebbles
Natural quartz pebbles collected from riverbeds, not artificially crushed, used in decorative landscaping. These are quartz other than natural sands, provided they are not graded as gravel or aggregates, which would fall under heading 25.17.
2506.10.00Optical Grade Silica Sand 99.5% SiO2
Ultra-pure artificial sand from quartz crushing, with 99.5% silica and iron oxide below 0.03%, ideal for fiber optic and pharmaceutical glass. Classified in tariff item 2506.10.00 due to its non-natural processing and precise purity.
2506.10.00Purified Quartz Sand for Lamp Tubing Glass
Purified quartz sand, artificially processed from selected quartz to achieve 98.5% SiO2 and less than 0.1% iron content, intended for use in borosilicate glass for fluorescent lamps and tubes. The flotation purification process distinguishes it from natural sands, meeting the criteria for classification under this tariff item.
2506.10.00Quartz Countertop Block
Rectangular blocks of natural quartz cut by sawing for use in fabricating kitchen countertops, remaining in raw slab form without polishing or edge work. The blocks are classified under this tariff item as quartz merely cut into rectangular shapes, prior to any further processing.
2506.10.00Quartzite Quarry Blocks
Large quartzite quarry blocks, roughly squared for transport, intended for sawing mills. These are quartzite merely cut into blocks of rectangular shape, as described in tariff item 2506.10.00, and not further worked.
2506.10.00Quartzite Slab Blocks
Quartzite rock roughly sawn into rectangular slabs or blocks for further processing. This falls under tariff item 2506.10.00 as quartzite merely cut by sawing, not further worked into finished dimensions, commonly used in construction.
2506.10.00Quartz Monumental Slab
Rectangular slabs of quartz cut for gravestones or memorials, roughly trimmed only and not further worked. The slabs are classified under this tariff item as 'other' quartz, excluding natural sands and finished stone products, and are intended for domestic processing.
2506.10.00Quartz Ore Lumps
Lumpy quartz ore from mining operations, containing high silica for glassmaking feedstock. These are unprocessed quartz excluding sands, falling under tariff item 2506.10.00 as a primary input for float glass production.
2506.10.00Quartz Silica Sand for Solar Panel Glass
Processed quartz sand with 95-98% silica content and iron below 0.5%, specifically manufactured for low-iron float glass used in photovoltaic solar panels. The processing goes beyond natural sand, involving purification steps that align with the tariff item's scope for quartz other than natural sands.
2506.10.00Rectangular Quartzite Slabs
Quartzite cut into rectangular slabs by simple sawing, for subsequent crushing or slab processing. Tariff item 2506.10.00 specifically includes such merely cut forms, used in countertops after further fabrication.
2506.10.00Roughly Trimmed Quartz Slab
A large slab of natural quartz, roughly trimmed by sawing into a rectangular shape, intended for further processing into countertops or tiles. It falls under this tariff item as 'other' quartz, not natural sands, and is not yet worked beyond the sawing stage.
2506.10.00Rough Quartz Crystals
Natural quartz crystals mined from deposits, typically in irregular shapes without further processing beyond extraction. These are classified under tariff item 2506.10.00 as quartz other than natural sands, distinct from processed or crushed forms.
2506.10.00Sawn Quartzite Blocks
Quartzite blocks cut by sawing into rectangular shapes, suitable for monumental or architectural use. Classified in tariff item 2506.10.00 as merely cut, not further dressed or polished, used in stone fabrication industries.
2506.10.00Sawn Quartzite Slab
Quartzite rock merely cut into rectangular slabs by sawing, suitable for monumental or architectural use after further processing. The slabs are not polished or finished, and they fall under this tariff item as quartzite roughly trimmed, excluding natural sands.
2506.10.00Silica 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.
2506.10.00Vein-Cut Quartzite Block
Rectangular blocks featuring natural vein patterns, sawn from quartzite quarries for luxury surfaces. The blocks are merely cut, not polished or finished, and are classified under this tariff item as 'other' quartzite, popular for high-end interior applications.
2506.20.00Bahia Blue Quartzite Slab
Bahia Blue Quartzite Slab is a premium quartzite from Brazil, cut by sawing into 3cm thick rectangular slabs suitable for further processing. It falls under tariff item 2506.20.00 as quartzite merely cut, not worked or polished.
2506.20.00Brazilian White Quartzite Rough Slab
Brazilian White Quartzite Rough Slab is a high-grade quartzite sawn into rectangular slabs of 3cm thickness, unworked beyond sawing. It falls under tariff item 2506.20.00 as quartzite merely cut by sawing into rectangular slabs, without polishing or further processing.
2506.20.00Chinese White Quartzite Block
White quartzite blocks from China, sawn into rectangular parallelepipeds with minimal trimming for stability during transport. This product falls under tariff item 2506.20.00 as quartzite that is roughly trimmed or merely cut by sawing into blocks or slabs of a rectangular shape, without further processing.
2506.20.00Colonial White Quartzite Slab
Colonial White quartzite slabs cut to rectangular dimensions from Rajasthan mines, suitable for fabrication into kitchen islands. These slabs are merely sawn without additional working, qualifying as quartzite under tariff item 2506.20.00.
2506.20.00Crude White Quartzite Block
Crude White Quartzite Block is a large unprocessed block of white quartzite extracted directly from the quarry, roughly trimmed on edges but retaining its natural irregular shape. It falls under tariff item 2506.20.00 as crude or roughly trimmed quartzite, not processed beyond basic shaping.
2506.20.00Grey Quartzite Rough Cut Slab
Grey Quartzite Rough Cut Slab consists of uniform grey quartzite slabs roughly sawn to rectangular 2cm thickness for wall panels. It is classified under tariff item 2506.20.00 as quartzite merely cut by sawing, with no additional processing beyond basic cutting.
2506.20.00Indian G603 Quartzite Slab
Indian G603 quartzite cut into rectangular slabs from Indian quarries, merely sawn to fixed dimensions without polishing or edge finishing. This product is classified under tariff item 2506.20.00 as quartzite not further processed beyond sawing.
2506.20.00Indian Teak Quartzite Sawn Block
Indian Teak Quartzite Sawn Block is a teakwood-patterned quartzite sawn into 120x60cm rectangular blocks. It falls under tariff item 2506.20.00 as quartzite merely cut into rectangular blocks, without further trimming or finishing.
2506.20.00Irregularly Trimmed Super White Quartzite
Irregularly Trimmed Super White Quartzite features natural veins and fissures in a roughly trimmed form straight from the vein. It is classified under tariff item 2506.20.00 as crude quartzite, not further dimensioned or finished, suitable for downstream processing.
2506.20.00Macaubas Quartzite Block
Exotic Macaubas quartzite from Brazil, roughly trimmed into massive rectangular blocks by diamond sawing. This product falls under tariff item 2506.20.00 as quartzite that is roughly trimmed or merely cut by sawing, without further processing.
2506.20.00Quarry-Fresh Black Quartzite Block
Quarry-Fresh Black Quartzite Block is freshly quarried with only peripheral rough trimming to facilitate handling. It falls under tariff item 2506.20.00 as minimally processed quartzite, used in heavy construction and monument bases.
2506.20.00Quartzite Block for Wall Cladding Rough Cut
Quartzite Block for Wall Cladding Rough Cut consists of rectangular quartzite blocks sawn to uniform dimensions for later splitting into thin cladding panels. It is classified under tariff item 2506.20.00 as quartzite merely cut into rectangular blocks, without further processing.
2506.20.00Quartzite Dimensional Block Taj Mahal Variety
Quartzite Dimensional Block Taj Mahal Variety is a beige quartzite cut into precise rectangular blocks for architectural use. It fits tariff item 2506.20.00 as quartzite slabs or blocks merely sawn, retaining natural surfaces without machining.
2506.20.00Rough Cut Patagonia Quartzite Block
Rough Cut Patagonia Quartzite Block is roughly cut from Argentine mountains, trimmed just enough for safe shipping. It falls under tariff item 2506.20.00 as crude quartzite before fabrication, valued for durability in outdoor paving.
2506.20.00Roughly Trimmed Brazilian Quartzite Block
A large block of quartzite sourced from Brazil, roughly trimmed into a rectangular shape using basic sawing techniques but not further processed into finished dimensions. It falls under tariff item 2506.20.00 as quartzite that is roughly trimmed or merely cut by sawing.
2506.20.00Roughly Trimmed Gray Quartzite Boulder
Roughly Trimmed Gray Quartzite Boulder is a natural gray quartzite boulder with minimal edge trimming, preserving quarry-cracked surfaces and irregular form. It falls under tariff item 2506.20.00 as crude or roughly trimmed quartzite, not processed beyond basic shaping.
2506.20.00Roughly Trimmed Quartzite Quarry Block
Roughly Trimmed Quartzite Quarry Block is a large natural quartzite block roughly trimmed into a rectangular shape using basic tools. It falls under tariff item 2506.20.00 as quartzite roughly trimmed or merely cut by sawing into blocks, with no further processing.
2506.20.00Rough Trimmed Taj Mahal Quartzite Chunk
Rough Trimmed Taj Mahal Quartzite Chunk is a characteristic beige Taj Mahal variety quartzite, roughly trimmed into transportable chunks from Indian quarries. It qualifies for tariff item 2506.20.00 as crude quartzite not further dimensioned or finished.
2506.20.00Sawn Quartzite Slab for Countertop Blanks
Sawn Quartzite Slab for Countertop Blanks consists of rectangular quartzite slabs sawn from blocks with straight edges but no surface finishing or polishing. It is classified under tariff item 2506.20.00 as quartzite merely cut by sawing into rectangular slabs, prior to any further processing.
2506.20.00Super White Quartzite Slab
Near-white Super White quartzite slabs sawn to rectangular profile from Spanish or Turkish sources, merely cut without finishing. These slabs are classified under tariff item 2506.20.00 as quartzite not further processed beyond sawing.
2506.20.00Taj Mahal Quartzite Block
Cream-colored Taj Mahal quartzite blocks roughly sawn into rectangular forms from Indian quarries, intended for slab production. This product falls under tariff item 2506.20.00 as quartzite that is roughly trimmed or merely cut by sawing, without further processing.
2506.20.00Uncut Brazilian Quartzite Block
Uncut Brazilian Quartzite Block is a premium uncut quartzite block from Brazilian quarries, roughly trimmed to remove major fractures but with natural pitting intact. It falls under tariff item 2506.20.00 as crude quartzite before sawing into slabs.