Industrial Quartz Block
Sawn rectangular blocks of quartz for laboratory equipment or high-temp crucibles, in raw form. HTS 2506.10.0050 for 'other' quartz slabs, not parts or fabricated items. Distinguishes from optical or synthetic quartz.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If fired into lab crucibles
Fired ceramic quartz articles go to Chapter 69 crucibles.
If for optical elements
Chapter note excludes optical quartz elements to 9001.
If agglomerated mica-quartz composite
Built-up quartz-mica falls under 6815 per statistical note.
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Import Tips & Compliance
• Certify purity levels (>99% SiO2) for industrial end-use claims
• Avoid bundling with machined parts; classify components separately
• Declare intended use as raw material to qualify for lower duties
Related Products under HTS 2506.10.00.50
Roughly 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 HTS 2506.10.0050 as 'other' quartz, not natural sands, that is merely cut into blocks or slabs without further shaping. This distinguishes it from finished quartz products or sands.
Quartz Countertop Block
Rectangular blocks of natural quartz cut by sawing for use in fabricating kitchen countertops, remaining in raw slab form. Classified under HTS 2506.10.0050 as 'other' quartz roughly trimmed into rectangular slabs, prior to any surface finishing. Excludes synthetic quartz or fully processed surfaces.
Quartz Monumental Slab
Rectangular slabs of quartz cut for gravestones or memorials, roughly trimmed only. Under HTS 2506.10.0050 as 'other' quartz not further worked, per hierarchy excluding sands and finished stone. Processed domestically into final engravings.
Brazilian Quartz Slab
Premium rectangular slabs from Brazilian quartz deposits, roughly sawn for export. Classified HTS 2506.10.0050 as 'other' quartz, valued for clarity in fabrication. Subject to potential trade remedies.
Vein-Cut Quartzite Block
Rectangular blocks featuring natural vein patterns, sawn from quartzite quarries for luxury surfaces. HTS 2506.10.0050 'other' quartzite merely cut, not polished or finished. Popular for high-end interiors.
Sawn Quartzite Slab
Quartzite rock merely cut into rectangular slabs by sawing, suitable for monumental or architectural use after further processing. Falls under HTS 2506.10.0050 as 'other' quartz/quartzite roughly trimmed, not natural sands or finished products. Chapter notes exclude worked forms.