Sands (other than natural) containing by weight 95 percent or more of silica and not more than 0.6 percent of oxide of iron
Quartz (other than natural sands); quartzite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape: > Quartz > Sands (other than natural) containing by weight 95 percent or more of silica and not more than 0.6 percent of oxide of iron
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2506.10.00.10
High-Purity Silica Sand for Glass Manufacturing
This artificial silica sand contains over 95% silica and less than 0.6% iron oxide, produced by crushing and washing quartz to remove impurities. It is classified under HTS 2506.10.0010 as processed quartz sand (other than natural) meeting the strict purity specifications for optical and container glass production. The low iron content prevents discoloration in high-clarity glass products.
Optical 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 HTS 2506.10.0010 due to its non-natural processing and precise purity meeting the code's chemical thresholds. This sand ensures minimal impurities for premium glass clarity.
Quartz Silica Sand for Solar Panel Glass
Processed quartz sand with 95-98% silica and iron <0.5%, specifically manufactured for low-iron float glass used in photovoltaic panels. Falls under HTS 2506.10.0010 as non-natural quartz sand meeting the silica/iron parameters after milling and flotation purification. Critical for producing clear glass that maximizes solar transmission.
Artificial Silica Sand for Tableware Crystal Glass
High-spec quartz-derived sand (>96% silica, Fe2O3 <0.4%) for lead-free crystal glass in tableware like stemware and vases. HTS 2506.10.0010 applies to this non-natural sand due to its purity and artificial production via grinding high-grade quartz. Ensures brilliance without iron-induced green tint.
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. Classified HTS 2506.10.0010 for its artificial processing and compliance with silica/iron limits, distinguishing it from raw natural sands.
Purified Quartz Sand for Lamp Tubing Glass
Artificial sand from selected quartz, 98.5% SiO2 and <0.1% iron, for borosilicate glass in fluorescent lamps and tubes. HTS 2506.10.0010 covers this due to flotation purification process meeting non-natural sand criteria and purity specs.
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. Under HTS 2506.10.0010 as artificial product fitting the statistical purity description, not natural sand.