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HSChapter 25
U.S. exports of quartz (other than natural sands) (HS 250610) totaled $26.0M in July 2026.
Importers of Quartz (Other Than Natural Sands) paid $114K in duties in July 2026 — an effective duty rate of 14% on $802K in dutiable value, based on actual customs collections rather than the published tariff schedule. Quartz (Other Than Natural Sands) imports of $1.3M in July 2026 ran 23% below the year-to-date monthly average of $1.7M.
Last updated: July 2026 dataQuarried or processed quartz in lump, chip, or granular form — distinct from naturally deposited sand — is split at the 10-digit level by iron oxide content, with high-purity material (≥95% silica, <0.6% iron oxide) under 2506100010 and all other forms under 2506100050. Turkey leads US import supply, followed by Canada and Norway, reflecting the geographic concentration of high-grade quartz deposits used in ferrosilicon smelting, silicon metal production, and engineered stone manufacturing. Purity documentation from the exporting mill is routinely required to support the correct 10-digit classification.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
94 shipments/mo
Heading 2506.10 covers quartz that occurs as rock or vein material — quarried, crushed, or otherwise processed from solid deposits — rather than naturally deposited sand. If the material was extracted as unconsolidated sand from a natural deposit, it belongs under 2505.10 regardless of its silica purity.
Norway hosts some of the world's highest-purity quartz deposits, particularly in the Rana region, which produce material meeting the stringent specifications required for solar-grade silicon and semiconductor applications. That exceptional purity justifies the logistics cost, making Norwegian quartz competitive for premium end uses even against closer sources.
Subheading 2 of 2 in heading 2506
Subheading 250610 · $1.3M of $2.9M
ImportsExports
Imports
$1.3MYoY · Pro
Exports
$26.0MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
China and Japan together take 84% of it.
customs district
origin
entry
rate provision · imports
38.7% enters free of duty; the effective duty rate is 8.70%.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2506100050 | Quartz (Other Than Natural Sands), NESOI | $968K | 10.54% | 70.66% | $102K |
| 2506100010 | Qrtz Snd,Artfcl,Wt Gt= 95%slca <=0.6% Oxd of Fe | $340K | 3.48% | 34.77% | $12K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2506100000 | Quartz (Other Than Natural Sands) | $26.0M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
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