SIC Codes - Division D - Major Group 32: Stone, Clay, Glass, And Concrete Products

Major Group 32: Stone, Clay, Glass, And Concrete Products

This major group includes establishments engaged in manufacturing flat glass and other glass products, cement, structural clay products, pottery, concrete and gypsum products, cut stone, abrasive and asbestos products, and other products from materials taken principally from the earth in the form of stone, clay, and sand. When separate reports are available for mines and quarries operated by manufacturing establishments classified in this major group, the mining and quarrying activities are classified in Division B, Mining. When separate reports are not available, the mining and quarrying activities, other than those of Industry 3295, are classified herein with the manufacturing operations.

If separate reports are not available for crushing, grinding, and other preparation activities of Industry 3295, these establishments are classified in Division B, Mining.

Industry Group 321: Flat Glass
- 3211 Flat Glass
  Establishments primarily engaged in manufacturing flat glass. This industry also produces laminated glass, but establishments primarily engaged in manufacturing laminated glass from purchased flat glass are classified in Industry 3231.
  - Building glass, flat
  - Cathedral glass
  - Float glass
  - Glass, colored: cathedral and antique
  - Glass, flat
  - Insulating glass, sealed units-mitse
  - Laminated glass, made from glass produced in the same establishment
  - Multiple-glazed insulating units-mitse
  - Opalescent flat glass
  - Ophthalmic glass, flat
  - Optical glass, flat
  - Picture glass
  - Plate glass blanks for optical or ophthalmic uses
  - Plate glass, polished and rough
  - Sheet glass
  - Sheet glass blanks for optical or ophthalmic uses
  - Skylight glass
  - Spectacle glass
  - Structural glass, flat
  - Tempered glass-mitse
  - Window glass, clear and colored

Industry Group 322: Glass And Glassware, Pressed Or Blown
- 3221 Glass Containers
  Establishments primarily engaged in manufacturing glass containers for commercial packing and bottling, and for home canning.
  - Ampoules, glass
  - Bottles for packing, bottling, and canning: glass
  - Carboys, glass
  - Containers for packing, bottling, and canning: glass
  - Cosmetic jars, glass
  - Fruit jars, glass
  - Jars for packing, bottling, and canning: glass
  - Jugs for packing, bottling, and canning: glass
  - Medicine bottles, glass
  - Milk bottles, glass
  - Packers' ware (containers), glass
  - Vials, glass: made in glassmaking establishments
  - Water bottles, glass
- 3229 Pressed And Blown Glass And Glassware, Not Elsewhere Classified
  Establishments primarily engaged in manufacturing glass and glassware, not elsewhere classified, pressed, blown, or shaped from glass produced in the same establishment. Establishments primarily engaged in manufacturing textile glass fibers are also included in this industry, but establishments primarily engaged in manufacturing glass wool insulation products are classified in Industry 3296. Establishments primarily engaged in manufacturing fiber optic cables are classified in Industry 3357, and those manufacturing fiber optic medical devices are classified in Industry Group 384. Establishments primarily engaged in the production of pressed lenses for vehicular lighting, beacons, and lanterns are also included in this industry, but establishments primarily engaged in the production of optical lenses are classified in Industry 3827. Establishments primarily engaged in manufacturing glass containers are classified in Industry 3221, and those manufacturing complete electric light bulbs are classified in Industry 3641.
  - Art glassware, made in glassmaking plants
  - Ashtrays, glass
  - Barware, glass
  - Battery jars, glass
  - Blocks, glass
  - Bowls, glass
  - Bulbs for electric lights, without filaments or sockets-mitse
  - Candlesticks, glass
  - Centerpieces, glass
  - Chimneys, lamp: glass-pressed or blown
  - Christmas tree ornaments, from glass-mitse
  - Clip cups, glass
  - Cooking utensils, glass and glass ceramic
  - Drinking straws, glass
  - Fiber optics strands
  - Fibers, glass, textile
  - Flameware, glass and glass ceramic
  - Frying pans, glass and glass ceramic
  - Glass blanks for electric light bulbs
  - Glass brick
  - Glassware, except glass containers for packing, bottling, and canning
  - Glassware: art, decorative, and novelty
  - Goblets, glass
  - Illuminating glass: light shades, reflectors, lamp chimneys, and globes
  - Industrial glassware and glass products, pressed or blown
  - Ink-Wells, glass
  - Insulators, electrical: glass
  - Lamp parts, glass
  - Lamp shades, glass
  - Lantern globes, glass: pressed or blown
  - Lens blanks, optical and ophthalmic
  - Lenses, glass: for lanterns, flashlights, headlights, and searchlights
  - Level vials for instruments, glass
  - Light shades, glass: pressed or blown
  - Lighting glassware, pressed or blown
  - Novelty glassware: made in glassmaking plants
  - Ophthalmic glass, except flat
  - Optical glass blanks
  - Photomask blanks, glass
  - Reflectors for lighting equipment, glass: pressed or blown
  - Refrigerator dishes and jars, glass
  - Scientific glassware, pressed or blown: made in glassmaking plants
  - Stemware, glass
  - Tableware, glass and glass ceramic
  - Tea kettles, glass and glass ceramic
  - Technical glassware and glass products, pressed or blown
  - Television tube blanks, glass
  - Textile glass fibers
  - Tobacco jars, glass
  - Trays, glass
  - Tubing, glass
  - Tumblers, glass
  - Vases, glass
  - Yarn, fiberglass: made in glass plants

Industry Group 323: Glass Products, Made Of Purchased Glass
- 3231 Glass Products, Made Of Purchased Glass
  Establishments primarily engaged in manufacturing glass products from purchased glass. Establishments primarily engaged in manufacturing optical lenses, except ophthalmic, are classified in Industry 3827, and those manufacturing ophthalmic lenses are classified in Industry 3851.
  - Aquariums and reflectors, made from purchased glass
  - Art glass, made from purchased glass
  - Christmas tree ornaments, made from purchased glass
  - Cut and engraved glassware, made from purchased glass
  - Decorated glassware: e.g., chipped, engraved, etched,
  - Doors, made from purchased glass
  - Enameled glass, made from purchased glass
  - Encrusting gold, silver, or other metals on glass products: made from
  - Flowers, foliage, fruits and vines: artificial glass-made from
  - Fruit, artificial: made from purchased glass
  - Furniture tops, glass: cut, beveled, and polished
  - Glass, scientific apparatus: for druggists', hospitals, laboratories-made
  - Glass, sheet: bent-made from purchased glass
  - Grasses, artificial: made from purchased glass
  - Ground glass, made from purchased glass
  - Industrial glassware, made from purchased glass
  - Laboratory glassware, made from purchased glass
  - Laminated glass, made from purchased glass
  - Leaded glass, made from purchased glass
  - Medicine droppers, made from purchased glass
  - Mirrors, framed or unframed: made from purchased glass
  - Mirrors, transportation equipment: made from purchased glass
  - Multiple-glazed insulating units, made from purchased glass
  - Novelties, glass: e.g., fruit, foliage, flowers, animals, made from
  - Ornamented glass, made from purchased glass
  - Plants and foliage, artificial: made from purchased glass
  - Reflector glass beads, for highway signs and other reflectors: made
  - Safety glass, made from purchased glass
  - Silvered glass, made from purchased glass
  - Stained glass, made from purchased glass
  - Table tops made from purchased glass
  - Technical glassware, made from purchased glass
  - Tempered glass, made from purchased glass
  - Test tubes, made from purchased glass
  - Vials, made from purchased glass
  - Watch crystals, made from purchased glass
  - Windows, stained glass: made from purchased glass
  - Windshields, made from purchased glass

Industry Group 324: Cement, Hydraulic
- 3241 Cement, Hydraulic
  Establishments primarily engaged in manufacturing hydraulic cement, including portland, natural, masonry, and pozzolana cements.
  - Cement, hydraulic: portland, natural, masonry, and pozzolana

Industry Group 325: Structural Clay Products
- 3251 Brick And Structural Clay Tile
  Establishments primarily engaged in manufacturing brick and structural clay tile. Establishments primarily engaged in manufacturing clay firebrick are classified in Industry 3255; those manufacturing nonclay firebrick are classified in Industry 3297; those manufacturing sand lime brick are classified in Industry 3299; and those manufacturing glass brick are classified in Industry 3229.
  - Book tile, clay
  - Brick: common, face, glazed, vitrified, and hollow-clay
  - Building tile, clay
  - Ceramic glazed brick, clay
  - Chimney blocks, radial-clay
  - Corncrib tile
  - Facing tile, clay
  - Fireproofing tile, clay
  - Floor arch tile, clay
  - Flooring brick, clay
  - Furring tile, clay
  - Partition tile clay
  - Paving brick clay
  - Silo tile
  - Slumped brick
  - Structural tile, clay
- 3253 Ceramic Wall And Floor Tile
  Establishments primarily engaged in manufacturing ceramic wall and floor tile. Establishments primarily engaged in manufacturing structural clay tile are classified in Industry 3251, and those manufacturing drain tile are classified in Industry 3259.
  - Ceramic tile, floor and wall
  - Enamel tile, floor and wall: clay
  - Faience tile
  - Mosaic tile, ceramic
  - Promenade tile, clay
  - Quarry tile, clay
- 3255 Clay Refractories
  Establishments primarily engaged in manufacturing clay firebrick and other heat resisting clay products. Establishments primarily engaged in manufacturing nonclay refractories and all graphite refractories, whether of carbon bond or ceramic bond, are classified in Industry 3297.
  - Brick, clay refractory: fire clay and high alumina
  - Castable refractories, clay
  - Cement, clay refractory
  - Clay refractories
  - Crucibles, fire clay
  - Fire clay blocks, bricks, tile, and special shapes
  - Firebrick, clay
  - Floaters, glasshouse: clay
  - Foundry refractories, clay
  - Glasshouse refractories
  - Heater radiants, clay
  - Hot top refractories, clay
  - Insulating firebrick and shapes, clay
  - Kiln furniture, clay
  - Ladle brick, clay
  - Melting pots, glasshouse: clay
  - Mortars, clay refractory
  - Plastics fire clay bricks
  - Plastics refractories, clay
  - Rings, glasshouse: clay
  - Saggers
  - Stoppers, glasshouse: clay
  - Tank blocks, glasshouse: clay
  - Tile, clay refractory
- 3259 Structural Clay Products, Not Elsewhere Classified
  Establishments primarily engaged in manufacturing clay sewer pipe and structural clay products, not elsewhere classified.
  - Adobe brick
  - Architectural terra cotta
  - Blocks, segment: clay
  - Chimney pipe and tops, clay
  - Conduit, vitrified clay
  - Coping, wall: clay
  - Drain tile, clay
  - Liner brick and plates, for lining sewers, tanks, etc.: vitrified clay
  - Lining, stove and flue: clay
  - Roofing tile, clay
  - Sewer pipe and fittings, clay
  - Thimbles, chimney: clay
  - Tile, filter underdrain: clay
  - Tile, sewer: clay

Industry Group 326: Pottery And Related Products
- 3261 Vitreous China Plumbing Fixtures And China And Earthenware Fittings
  Establishments primarily engaged in manufacturing vitreous china plumbing fixtures and china and earthenware fittings and bathroom accessories.
  - Bathroom accessories, vitreous china and earthenware
  - Bidets, vitreous china
  - Bolt caps, vitreous china and earthenware
  - Closet bowls, vitreous china
  - Drinking fountains, vitreous china
  - Faucet handles, vitreous china and earthenware
  - Flush tanks, vitreous china
  - Laundry trays, vitreous china
  - Lavatories, vitreous china
  - Plumbing fixtures, vitreous china
  - Sinks, vitreous china
  - Soap dishes, vitreous china and earthenware
  - Toilet fixtures, vitreous china
  - Towel bar holders, vitreous china and earthenware
  - Urinals, vitreous china
- 3262 Vitreous China Table And Kitchen Articles
  Establishments primarily engaged in manufacturing vitreous china table and kitchen articles for use in households and in hotels, restaurants, and other commercial institutions for preparing, serving, or storing food or drink. Establishments primarily engaged in manufacturing fine (semivitreous) earthenware (whiteware) table and kitchen articles are classified in Industry 3263.
  - Bone china
  - Commercial and household tableware and kitchenware: vitreous china
  - Cooking ware, china
  - Dishes: commercial and household-vitreous china
  - Table articles, vitreous china
- 3263 Fine Earthenware (whiteware) Table And Kitchen Articles
  Establishments primarily engaged in manufacturing fine (semivitreous) earthenware table and kitchen articles for preparing, serving, or storing food or drink. Establishments primarily engaged in manufacturing vitreous china table and kitchen articles are classified in Industry 3262.
  - Cooking ware, fine earthenware
  - Earthenware: commercial and household-semivitreous
  - Kitchenware, semivitreous earthenware
  - Tableware: commercial and household-semivitreous
  - Whiteware, fine type semivitreous tableware and kitchenware
- 3264 Porcelain Electrical Supplies
  Establishments primarily engaged in manufacturing porcelain electronic and other electrical insulators, molded porcelain parts for electrical devices, spark plug and steatitic porcelain, and electronic and electrical supplies from clay and other ceramic materials.
  - Alumina porcelain insulators
  - Beryllia porcelain insulators
  - Cleats, porcelain
  - Ferrite
  - Insulators, porcelain
  - Knobs, porcelain
  - Magnets, permanent: ceramic or ferrite
  - Porcelain parts, molded: for electrical and electronic devices
  - Spark plugs, porcelain
  - Titania porcelain insulators
  - Tubes, porcelain
- 3269 Pottery Products, Not Elsewhere Classified
  Establishments primarily engaged in firing and decorating white china and earthenware for the trade and manufacturing art and ornamental pottery, industrial and laboratory pottery, stoneware and coarse earthenware table and kitchen articles, unglazed red earthenware florists' articles, and other pottery products, not elsewhere classified.
  - Art and ornamental ware, pottery
  - Ashtrays, pottery
  - Ceramic articles for craft shops
  - Chemical porcelain
  - Chemical stoneware (pottery products)
  - China firing and decorating, for the trade
  - Cones, pyrometric: earthenware
  - Cooking ware: stoneware, coarse earthenware, and pottery
  - Crockery
  - Decalcomania work on china and glass, for the trade
  - Earthenware table and kitchen articles, coarse
  - Encrusting gold, silver, or other metal on china, for the trade
  - Figures, pottery: china, earthenware, and stoneware
  - Filtering media, pottery
  - Florists' articles, red earthenware
  - Flower pots, red earthenware
  - Forms for dipped rubber products, pottery
  - Grinding media, pottery
  - Heater parts, pottery
  - Kitchen articles, coarse earthenware
  - Lamp bases, pottery
  - Pottery: art, garden, decorative, industrial, and laboratory
  - Pyrometer tubes
  - Rockingham earthenware
  - Smokers' articles, pottery
  - Stationery articles, pottery
  - Textile guides, porcelain
  - Vases, pottery (china, earthenware, and stoneware)

Industry Group 327: Concrete, Gypsum, And Plaster Products
- 3271 Concrete Block And Brick
  Establishments primarily engaged in manufacturing concrete building block and brick from a combination of cement and aggregate. Contractors engaged in concrete construction work are classified in Division C, Construction, and establishments primarily engaged in mixing and delivering ready-mixed concrete are classified in Industry 3273.
  - Architecture block concrete: e.g. fluted, screen, split, slump,
  - Blocks, concrete and cinder
  - Brick, concrete
  - Paving block, concrete
  - Plinth blocks, precast terrazzo
- 3272 Concrete Products, Except Block And Brick
  Establishments primarily engaged in manufacturing concrete products, except block and brick, from a combination of cement and aggregate. Contractors engaged in concrete construction work are classified in Division C, Construction, and establishments primarily engaged in mixing and delivering ready-mixed concrete are classified in Industry 3273.
  - Areaways basement window: concrete
  - Art marble, concrete
  - Ashlar, cast stone
  - Bathtubs, concrete
  - Battery wells and boxes, concrete
  - Building materials, concrete: except block and brick
  - Building stone, artificial: concrete
  - Burial vaults, concrete and precast terrazzo
  - Cast stone, concrete
  - Catch basin covers, concrete
  - Ceiling squares, concrete
  - Chimney caps, concrete
  - Church furniture, concrete
  - Columns, concrete
  - Concrete products, precast: except block and brick
  - Concrete, dry mixture
  - Conduits, concrete
  - Copings, concrete
  - Cribbing, concrete
  - Crossing slabs, concrete
  - Culvert pipe, concrete
  - Cylinder pipe, prestressed concrete
  - Cylinder pipe, pretensioned concrete
  - Door frames, concrete
  - Drain tile, concrete
  - Fireplaces, concrete
  - Floor filler tiles, concrete
  - Floor slabs, precast concrete
  - Floor tile, precast terrazzo
  - Fountains, concrete
  - Fountains, wash: precast terrazzo
  - Garbage boxes, concrete
  - Grave markers, concrete
  - Grave vaults, concrete
  - Grease traps, concrete
  - Housing components, prefabricated: concrete
  - Incinerators, concrete
  - Irrigation pipe, concrete
  - Joists, concrete
  - Laundry trays, concrete
  - Lintels, concrete
  - Manhole covers and frames, concrete
  - Mantels, concrete
  - Mattresses for river revetment, concrete articulated
  - Meter boxes, concrete
  - Monuments, concrete
  - Panels and sections, prefabricated: concrete
  - Paving materials, prefabricated concrete, except blocks
  - Pier footings, prefabricated concrete
  - Piling, prefabricated concrete
  - Pipe, concrete
  - Pipe, lined with concrete
  - Poles, concrete
  - Posts, concrete
  - Pressure pipe, reinforced concrete
  - Prestressed concrete products
  - Roofing tile and slabs, concrete
  - Septic tanks, concrete
  - Sewer pipe, concrete
  - Shower receptors, concrete
  - Siding, precast stone
  - Sills, concrete
  - Silo staves, cast stone
  - Silos, prefabricated concrete
  - Slabs, crossing: concrete
  - Spanish floor tile, concrete
  - Squares for walls and ceilings, concrete
  - Steps, prefabricated concrete
  - Stone, cast concrete
  - Stools, precast terrazzo
  - Storage tanks, concrete
  - Tanks, concrete
  - Terrazzo products, precast
  - Thresholds, precast terrazzo
  - Ties, railroad: concrete
  - Tile, precast terrazzo or concrete
  - Tombstones, precast terrazzo or concrete
  - Wall base, precast terrazzo
  - Wall squares, concrete
  - Wash foundations, precast terrazzo
  - Well curbing, concrete
  - Window sills, cast stone
- 3273 Ready-mixed Concrete
  Establishments primarily engaged in manufacturing portland cement concrete manufactured and delivered to a purchaser in a plastic and unhardened state. This industry includes production and sale of central-mixed concrete, shrink-mixed concrete, and truck-mixed concrete.
  - Central-mixed concrete
  - Ready-mixed concrete, production and distribution
  - Shrink-mixed concrete
  - Truck-mixed concrete
- 3274 Lime
  Establishments primarily engaged in manufacturing quicklime, hydrated lime, and "dead-burned" dolomite from limestone, dolomite shells, or other substances.
  - Agricultural lime
  - Building lime
  - Dolomite, dead-burned
  - Dolomitic lime
  - Hydrated lime
  - Lime plaster
  - Masons' lime
  - Quicklime
- 3275 Gypsum Products
  Establishments primarily engaged in manufacturing plaster, plasterboard, and other products composed wholly or chiefly of gypsum, except articles of plaster of paris and papier-mache.
  - Acoustical plaster, gypsum
  - Agricultural gypsum
  - Board, gypsum
  - Building board, gypsum
  - Cement, Keene's
  - Gypsum products: e.g., block, board, plaster, lath, rock, tile
  - Insulating plaster, gypsum
  - Orthopedic plaster, gypsum
  - Panels, plaster: gypsum
  - Plaster and plasterboard, gypsum
  - Plaster of paris
  - Wallboard, gypsum

Industry Group 328: Cut Stone And Stone Products
- 3281 Cut Stone And Stone Products
  Establishments primarily engaged in cutting, shaping, and finishing granite, marble, limestone, slate, and other stone for building and miscellaneous uses. Establishments primarily engaged in buying or selling partly finished monuments and tombstones, but performing no work on the stones other than lettering, finishing, or shaping to custom order, are classified in Division F, Wholesale Trade or Division G, Retail Trade. The cutting of grindstones, pulpstones, and whetstones at the quarry is classified in Division B, Mining.
  - Altars, cut stone
  - Baptismal fonts, cut stone
  - Benches, cut stone
  - Blackboards, slate
  - Burial vaults, stone
  - Church furniture, cut stone
  - Curbing, granite and stone
  - Cut stone products
  - Desk set bases, onyx
  - Dimension stone for buildings
  - Flagstones
  - Furniture, cut stone
  - Granite, cut and shaped
  - Lamp bases onyx
  - Limestone, cut and shaped
  - Marble, building cut and shaped
  - Monuments, cut stone: not including only finishing or lettering
  - Paving blocks, cut stone
  - Pedestals, marble
  - Pulpits, cut stone
  - Roofing, slate
  - Slate and slate products
  - Statuary, marble
  - Stone, cut and shaped
  - Stone, quarrying and processing of own
  - Stone products
  - Switchboard panels, slate
  - Table tops, marble
  - Tombstones, cut stone: not including only finishing or lettering
  - Urns, cut stone
  - Vases, cut stone

Industry Group 329: Abrasive, Asbestos, And Miscellaneous
- 3291 Abrasive Products
  Establishments primarily engaged in manufacturing abrasive grinding wheels of natural or synthetic materials, abrasive-coated products, and other abrasive products. The cutting of grindstones, pulpstones, and whetstones at the quarry is classified in Division B, Mining.
  - Abrasive buffs, bricks, cloth, paper, sticks, stones, wheels, etc.
  - Abrasive grains, natural and artificial
  - Abrasive-coated products
  - Abrasives, aluminous
  - Aluminum oxide (fused) abrasives
  - Boron carbide abrasives
  - Bort, crushing
  - Buffing and polishing wheels, abrasive and nonabrasive
  - Cloth: garnet, emery, aluminum oxide, and silicon carbide coated
  - Corundum abrasives
  - Diamond dressing wheels
  - Diamond powder
  - Emery abrasives
  - Garnet abrasives
  - Grinding balls, ceramic
  - Grindstones, artificial
  - Grit, steel
  - Hones
  - Metallic abrasives
  - Oilstones, artificial
  - Pads, scouring: soap impregnated
  - Paper: garnet, emery, aluminum oxide, and silicon carbide coated
  - Polishing rouge (abrasive)
  - Polishing wheels
  - Pumice and pumicite abrasives
  - Rouge, polishing
  - Rubbing stones, artificial
  - Sandpaper
  - Scythe-stones, artificial
  - Silicon carbide abrasives
  - Sponges, scouring: metallic
  - Steel shot abrasives
  - Steel wool
  - Tripoli
  - Tungsten carbide abrasives
  - Wheels, abrasive: except dental
  - Wheels, diamond abrasive
  - Wheels, grinding: artificial
  - Whetstones, artificial
- 3292 Asbestos Products
  Establishments primarily engaged in manufacturing asbestos textiles, asbestos building materials, except asbestos paper, insulating materials for covering boilers and pipes, and other products composed wholly or chiefly of asbestos. Establishments primarily engaged in manufacturing asbestos paper are classified in Industry 2621, and those manufacturing gaskets and packing are classified in Industry 3053.
  - Asbestos cement products: e.g., siding, pressure pipe, conduits, ducts
  - Asbestos products: except packing and gaskets
  - Blankets, insulating for aircraft: asbestos
  - Boiler covering (heat insulating material), except felt
  - Brake lining, asbestos
  - Brake pads, asbestos
  - Building materials, asbestos: except asbestos paper
  - Carded fiber, asbestos
  - Cloth, asbestos
  - Clutch facings, asbestos
  - Cord, asbestos
  - Felt, woven amosite: asbestos
  - Floor tile, asphalt
  - Friction materials, asbestos: woven
  - Insulation, molded asbestos
  - Mattresses, asbestos
  - Millboard, asbestos
  - Pipe and boiler covering, except felt
  - Pipe covering (insulation), laminated asbestos paper
  - Pipe, pressure: asbestos cement
  - Roofing, asbestos felt roll
  - Rope, asbestos
  - Sheet, asbestos cement: flat or corrugated
  - Shingles, asbestos cement
  - Siding, asbestos cement
  - Table pads and padding, asbestos
  - Tape, asbestos
  - Textiles, asbestos: except packing
  - Thread, asbestos
  - Tile, vinyl asbestos
  - Tubing, asbestos
  - Wick, asbestos
  - Yarn, asbestos
- 3295 Minerals And Earths, Ground Or Otherwise Treated
  Establishments operating without a mine or quarry and primarily engaged in crushing, grinding, pulverizing, or otherwise preparing clay, ceramic, and refractory minerals; barite; and miscellaneous nonmetallic minerals, except fuels. These minerals are the crude products mined by establishments of Industry Groups 145 and 149, and by those of Industry 1479 mining barite. Also included are establishments primarily crushing slag and preparing roofing granules. The beneficiation or preparation of other minerals and metallic ores, and the cleaning and grading of coal, are classified in Division B, Mining, whether or not the operation is associated with a mine.
  - Barite, ground or otherwise treated
  - Barium, ground or otherwise treated
  - Blast furnace slag
  - Clay for petroleum refining, chemically processed
  - Clay, ground or otherwise treated
  - Desiccants, activated: clay
  - Diatomaceous earth, ground or otherwise treated
  - Feldspar, ground or otherwise treated
  - Filtering clays, treated purchased materials
  - Flint, ground or otherwise treated
  - Foundry facings, ground or otherwise treated
  - Fuller's earth, ground or otherwise treated
  - Graphite, natural: ground, pulverized, refined, or blended
  - Kaolin, ground or otherwise treated
  - Lead, black (natural graphite): ground, refined, or blended
  - Magnesite, crude: ground, calcined, or dead-burned
  - Mica, ground or otherwise treated
  - Perlite aggregate
  - Perlite, expanded
  - Plumbago: ground, refined, or blended
  - Pulverized earth
  - Pumice, ground or otherwise treated
  - Pyrophyllite, ground or otherwise treated
  - Roofing granules
  - Shale, expanded
  - Silicon, ultra high purity: treated purchased materials
  - Slag, crushed or ground
  - Spar, ground or otherwise treated
  - Steatite, ground or otherwise treated
  - Talc, ground or otherwise treated
  - Vermiculite, ex-foliated
- 3296 Mineral Wool
  Establishments primarily engaged in manufacturing mineral wool and mineral wool insulation products made of such siliceous materials as rock, slag, and glass, or combinations thereof. Establishments primarily engaged in manufacturing asbestos insulation products are classified in Industry 3292, and those manufacturing textile glass fibers are classified in Industry 3229.
  - Acoustical board and tile, mineral wool
  - Fiberglass insulation
  - Glass wool
  - Insulation: rock wool, fiberglass, slag, and silica minerals
  - Mineral wool roofing mats
- 3297 Nonclay Refractories
  Establishments primarily engaged in manufacturing refractories and crucibles made of materials other than clay. This industry includes establishments primarily engaged in manufacturing all graphite refractories, whether of carbon bond or ceramic bond. Establishments primarily engaged in manufacturing clay refractories are classified in Industry 3255.
  - Alumina fused refractories
  - Brick, bauxite
  - Brick, carbon
  - Brick, refractory: chrome, magnesite, silica, and other nonclay
  - Brick, silicon carbide
  - Castable refractories, nonclay
  - Cement, magnesia
  - Cement: high temperature, refractory (nonclay)
  - Crucibles: graphite, magnesite, chrome, silica, or other non-clay
  - Dolomite and dolomite-magnesite brick
  - Cunning mixes, nonclay
  - High temperature mortar, nonclay
  - Hot top refractories, nonclay
  - Nonclay refractories
  - Plastics refractories, nonclay
  - Pyrolytic graphite
  - Ramming mixes, nonclay
  - Refractories, castable: nonclay
  - Refractories, graphite: carbon bond or ceramic bond
  - Refractory cement, nonclay
  - Retorts, graphite
- 3299 Nonmetallic Mineral Products, Not Elsewhere Classified
  Establishments primarily engaged in the factory production of goods made of plaster of paris and papier-mache, and in manufacturing sand lime products and other nonmetallic mineral products, not elsewhere classified.
  - Architectural sculptures, plaster of paris: factory production only
  - Art goods: plaster of paris, papier-mache, and scagliola
  - Blocks, sand lime
  - Brackets, architectural: plaster-factory production only
  - Built-up mica
  - Ceramic fiber
  - Columns, papier-mache or plaster of paris
  - Ecclesiastical statuary: gypsum, clay, or papier-mache-factory
  - Floor composition, magnesite
  - Flower boxes, plaster of paris: factory production only
  - Fountains, plaster of paris: factory production only
  - Gravel painting
  - Images, small: gypsum, clay, or papier-mache-factory production only
  - Insul-sleeves (foundry materials)
  - Mica products, built-up and sheet except radio parts
  - Mica splitting
  - Mica, laminated
  - Moldings, architectural: plaster of paris-factory production only
  - Ornaments and architectural plaster work: e.g., mantels and columns
  - Panels, papier-mache or plaster of paris
  - Pedestals, statuary: plaster of paris or papier-mache-factory
  - Plaques: clay, plaster, or papier mache-factory production only
  - Sculptures, architectural: gypsum, clay, or papier-mache-factory
  - Statuary: gypsum, clay, papier-mache, scagliola, and metal-factory
  - Stucco
  - Synthetic stones, for gem stones and industrial use
  - Tile, sand lime
  - Tubing for electrical purposes, quartz
  - Urns, gypsum or papier-mache: factory production only
  - Vases, gypsum or papier-mache: factory production only