Introducing a new way to navigate by topics. Access the latest news, data, publications and more around topics of interest.
Our population statistics cover age, sex, race, Hispanic origin, migration, ancestry, language use, veterans, as well as population estimates and projections.
This section provides information on a range of educational topics, from educational attainment and school enrollment to school districts, costs and financing.
We measure the state of the nations workforce, including employment and unemployment levels, weeks and hours worked, occupations, and commuting.
Our statistics highlight trends in household and family composition, describe characteristics of the residents of housing units, and show how they are related.
Health statistics on insurance coverage, disability, fertility and other health issues are increasingly important in measuring the nation's overall well-being.
We measure the housing and construction industry, track homeownership rates, and produce statistics on the physical and financial characteristics of our homes.
The U.S. Census Bureau is the official source for U.S. export and import statistics and regulations governing the reporting of exports from the U.S.
The U.S. Census Bureau provides data for the Federal, state and local governments as well as voting, redistricting, apportionment and congressional affairs.
Search an alphabetical index of keywords and phrases to access Census Bureau statistics, publications, products, services, data, and data tools.
Geography provides the framework for Census Bureau survey design, sample selection, data collection, tabulation, and dissemination.
Geography is central to the work of the Bureau, providing the framework for survey design, sample selection, data collection, tabulation, and dissemination.
Find resources on how to use geographic data and products with statistical data, educational blog postings, and presentations.
The Geographic Support System Initiative will integrate improved address coverage, spatial feature updates, and enhanced quality assessment and measurement.
Work with interactive mapping tools from across the Census Bureau.
Find geographic data and products such as Shapefiles, KMLs, TIGERweb, boundary files, geographic relationship files, and reference and thematic maps.
Metropolitan and micropolitan areas are geographic entities used by Federal statistical agencies in collecting, tabulating, and publishing Federal statistics.
Find information about specific partnership programs and learn more about our partnerships with other organizations.
Definitions of geographic terms, why geographic areas are defined, and how the Census Bureau defines geographic areas.
We conduct research on geographic topics such as how to define geographic areas and how geography changes over time.
Visit our library of Census Bureau multimedia files. Collection formats include audio, video, mobile apps, images, and publications.
Official audio files from the Census Bureau, including "Profile America," a daily series of bite-sized statistics, placing current data in a historical context.
Infographics include information on the Census Bureau's history of data collection, our nation's veterans and the American Community Survey.
Stock photos that illustrate official Census Bureau operations and activities.
Read briefs and reports from Census Bureau experts.
Watch Census Bureau vignettes, testimonials, and video files.
Read research analyses from Census Bureau experts.
Access data through products and tools including data visualizations, mobile apps, interactive web apps and other software.
Developer portal to access services and documentation for the Census Bureau's APIs.
Explore Census Bureau data on your mobile device with interactive tools.
Find a multitude of DVDs, CDs and publications in print by topic.
These external sites provide more data.
Download extraction tools to help you get the in-depth data you need.
Learn more about our data from this collection of e-tutorials, presentations, webinars and other training materials. Sign up for training sessions.
Explore Census data with interactive visualizations covering a broad range of topics.
Learn how we serve the public as the most reliable source of data about the nation's people and economy.
Information about the U.S. Census Bureau.
Information about what we do at the U.S. Census Bureau.
Our researchers explore innovative ways to conduct surveys, increase respondent participation, reduce costs, and improve accuracy.
Our surveys provide periodic and comprehensive statistics about the nation, critical for government programs, policies, and decisionmaking.
Learn about other opportunities to collaborate with us.
Explore the rich historical background of an organization with roots almost as old as the nation.
Explore prospective positions available at the U.S. Census Bureau.
Information about the current field vacancies available at the U.S. Census Bureau Regional Offices.
Discover the latest in Census Bureau data releases, reports, and events.
The Census Bureau's Director writes on how we measure America's people, places and economy.
Find interesting and quirky statistics regarding national celebrations and major events.
Profile America is a daily, 60-second feature that uses interesting vignettes for that day to highlight information collected by the Census Bureau.
Find media toolkits, advisories, and all the latest Census news.
See what's coming up in releases and reports.
|Section V - Chapter 25|
|Salt; Sulfur; Earths and Stone; Plastering Materials, Lime and Cement|
Except where their context or note 4 to this chapter otherwise requires, the headings of this chapter cover only products which are in the crude state or which have been washed (even with chemical substances eliminating the impurities without changing the
structure of the product), crushed, ground, powdered, levigated, sifted, screened, concentrated by flotation, magnetic separation or other mechanical or physical processes (except crystallization), but not products which have been roasted, calcined, obtain
ed by mixing or subjected to processing beyond that mentioned in each heading.|
The products of this chapter may contain an added antidusting agent, provided that such addition does not render the product particularly suitable for a specific use rather than for general use.
|2.||This chapter does not cover:|
|(a).||Sublimed sulfur, precipitated sulfur or colloidal sulfur (heading 2802);|
|(b).||Earth colors containing 70 percent or more by weight of combined iron evaluated as Fe2O3 (heading 2821);|
|(c).||Medicaments or other products of chapter 30;|
|(d).||Perfumery, cosmetic or toilet preparations (chapter 33);|
|(e).||Setts, curbstones or flagstones (heading 6801); mosaic cubes and the like (heading 6802); roofing, facing or damp course slates (heading 6803);|
|(f).||Precious or semiprecious stones (heading 7102 or 7103);|
|(g).||Cultured crystals (other than optical elements) weighing not less than 2.5 g (0.088 ounces) each, of sodium chloride or of magnesium oxide, of heading 3824; optical elements of sodium chloride or of magnesium oxide (heading 9001);|
|(h).||Billiard chalks (heading 9504); or|
|(ij).||Writing or drawing chalks or tailors' chalks (heading 9609).|
|3.||Any products classifiable in heading 2517 and any other heading of the chapter are to be classified in heading 2517.|
|4.||Heading 2530 applies, inter alia, to: vermiculite, perlite and chlorites, unexpanded; earth colors, whether or not calcined or mixed together; natural micaceous iron oxides; meerschaum (whether or not in polished pieces); amber; agglomerated meerschaum and agglomerated amber, in plates, rods, sticks or similar forms, not worked after molding; jet; strontianite (whether or not calcined), other than strontium oxide; broken pieces of pottery, brick or concrete.|
|Schedule B No. and Headings||Commodity Description||Unit of Quantity||Second Quantity|
|25||Salt; Sulfur; Earths and Stone; Plastering Materials, Lime and Cement|
|2501.00.0000||- Salt (including table salt and denatured salt) and pure sodium chloride, whether or not in aqueous solution or containing added anticracking or free-flowing agents; sea water||t|
|2502.00.0000||- Unroasted iron pyrites||t|
|25.03||- Sulfur of all kinds, other than sublimed sulfur, precipitated sulfur and colloidal sulfur:|
|2503.00.0010||- - Crude or unrefined sulfur||t|
|2503.00.0090||- - Other||t|
|25.04||- Natural graphite:|
|2504.10.0000||- - In powder or in flakes||kg|
|2504.90.0000||- - Other||kg|
|25.05||- Natural sands of all kinds, whether or not colored, other than metal-bearing sands of chapter 26:|
|2505.10.0000||- - Silica sands and quartz sands||t|
|2505.90.0000||- - Other||t|
|25.06||- 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:|
|2506.10.0000||- - Quartz||t|
|2506.20||- - Quartzite:|
|2506.20.0010||- - - Crude or roughly trimmed||t|
|2506.20.0080||- - - Other||t|
|2507.00.0000||- Kaolin and other kaolinic clays, whether or not calcined||t|
|25.08||- Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths:|
|2508.10.0000||- - Bentonite||t|
|2508.30.0000||- - Fire-clay||t|
|2508.40||- - Other clays:|
|2508.40.0110||- - - Common blue clay and other ball clays||t|
|2508.40.0120||- - - Decolorizing earths and fuller's earth||t|
|2508.40.0150||- - - Other||t|
|2508.50.0000||- - Andalusite, kyanite and sillimanite||t|
|2508.60.0000||- - Mullite||t|
|2508.70.0000||- - Chamotte or dinas earths||t|
|25.10||- Natural calcium phosphates, natural aluminum calcium phosphates and phosphatic chalk:|
|2510.10.0000||- - Unground||t|
|2510.20.0000||- - Ground||t|
|25.11||- Natural barium sulfate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 2816:|
|2511.10.0000||- - Natural barium sulfate (barytes)||t|
|2511.20.0000||- - Natural barium carbonate (witherite)||kg|
|2512.00.0000||- Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less||t|
|25.13||- Pumice; emery; natural corundum, natural garnet and other natural abrasives, whether or not heat-treated:|
|2513.10||- - Pumice stone:|
|2513.10.0010||- - - Crude or in irregular pieces, including crushed pumice||kg|
|2513.10.0080||- - - Other||kg|
|2513.20||- - Emery, natural corundum, natural garnet and other natural abrasives:|
|2513.20.1000||- - - Crude or in irregular pieces||kg|
|2513.20.9000||- - - Other||kg|
|2514.00.0000||- Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape||t|
|25.15||- Marble, travertine and other calcareous monumental or building stone of an apparent specific gravity of 2.5 or more, and alabaster, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including sq|
|- - Marble and travertine:|
|2515.11.0000||- - - Crude or roughly trimmed||t|
|2515.12.0000||- - - Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape||t|
|2515.20.0000||- - Other calcareous monumental or building stone; alabaster||t|
|25.16||- Granite, porphyry, basalt, sandstone and other monumental or building stone, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape:|
|- - Granite:|
|2516.11.0000||- - - Crude or roughly trimmed||t|
|2516.12.0000||- - - Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape||t|
|2516.20||- - Sandstone:|
|2516.20.1000||- - - Crude or roughly trimmed||t|
|2516.20.2000||- - - Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape||t|
|2516.90.0000||- - Other monumental or building stone||t|
|25.17||- Pebbles, gravel, broken or crushed stone, of a kind commonly used for concrete aggregates, for road metalling or for railway or other ballast; shingle and flint, whether or not heat-treated; macadam of slag, dross or similar industrial waste, whether or|
|2517.10||- - Pebbles, gravel, broken or crushed stone, of a kind commonly used for concrete aggregates, for road metalling or for railway or other ballast, shingle and flint, whether or not heat-treated:|
|2517.10.0015||- - - Pebbles and gravel||t|
|2517.10.0020||- - - Limestone, except pebbles and gravel||t|
|2517.10.0055||- - - Other||t|
|2517.20.0000||- - Macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in subheading 2517.10||t|
|2517.30.0000||- - Tarred macadam||t|
|- - - Granules, chippings and powder, of stones of heading 2515 or 2516, whether or not heat-treated:|
|2517.41.0000||- - - - Of marble||t|
|2517.49.0000||- - - - Other||t|
|25.18||- Dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; dolomite ramming mix:|
|2518.10.0000||- - Dolomite not calcined or sintered||t|
|2518.20.0000||- - Calcined or sintered dolomite||t|
|2518.30.0000||- - Dolomite ramming mix||t|
|25.19||- Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure:|
|2519.10.0000||- - Natural magnesium carbonate (magnesite)||t|
|2519.90||- - Other:|
|2519.90.1000||- - - Fused magnesia and dead-burned (sintered) magnesia||kg|
|2519.90.2000||- - - Caustic calcined magnesite||t|
|2519.90.5000||- - - Other||kg|
|25.20||- Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulfate) whether or not colored, with or without small quantities of accelerators or retarders:|
|2520.10.0000||- - Gypsum; anhydrite||t|
|2520.20.0000||- - Plasters||t|
|2521.00.0000||- Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement (or for soil improvement)||t|
|25.22||- Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 2825:|
|2522.10.0000||- - Quicklime||kg|
|2522.20.0000||- - Slaked lime||kg|
|2522.30.0000||- - Hydraulic lime||kg|
|25.23||- Portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers:|
|2523.10.0000||- - Cement clinkers||t|
|- - Portland cement:|
|2523.21.0000||- - - White cement, whether or not artificially colored||t|
|2523.29.0000||- - - Other||t|
|2523.30.0000||- - Aluminous cement||t|
|2523.90.0000||- - Other hydraulic cements||t|
|2524.10.0000||- - Crocidolite||t|
|2524.90.0000||- - Other||t|
|25.25||- Mica, including splittings; mica waste:|
|2525.10.0000||- - Crude mica and mica rifted into sheets or splittings||kg|
|2525.20.0000||- - Mica powder||kg|
|2525.30.0000||- - Mica waste||kg|
|25.26||- Natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; talc:|
|2526.10.0000||- - Not crushed, not powdered||kg|
|2526.20.0000||- - Crushed or powdered||t|
|2528.00||- Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85 percent of H3BO3 calculated on the dry weight:|
|2528.00.1000||- - Natural sodium borates and concentrates thereof (whether or not calcined)||kg|
|2528.00.9000||- - Other||kg|
|25.29||- Feldspar; leucite, nepheline and nepheline syenite; fluorspar:|
|2529.10.0000||- - Feldspar||t|
|- - Fluorspar:|
|2529.21.0000||- - - Containing by weight 97 percent or less of calcium fluoride||t|
|2529.22.0000||- - - Containing by weight more than 97 percent of calcium fluoride||t|
|2529.30.0000||- - Leucite; nepheline and nepheline syenite||t|
|25.30||- Mineral substances not elsewhere specified or included:|
|2530.10.0000||- - Vermiculite, perlite and chlorites, unexpanded||kg|
|2530.20.0000||- - Kieserite, epsom salts (natural magnesium sulfates)||kg|
|2530.90||- - Other:|
|2530.90.1000||- - - Natural cryolite; natural chiolite||t|
|2530.90.2000||- - - Natural micaceous iron oxides||kg|
|2530.90.8015||- - - Earth colors||kg|
|2530.90.8060||- - - Other||kg|