หมวด 25

MINERAL PRODUCTS

บทที่ 25

Salt; sulphur; earth and stone; plastering materials, lime and cement

2501

Salt（including table salt and denatured salt）and pure sodium chloride

2502

Unroasted iron pyrites

2503

Sulphur of all kinds

2504

Natural graphite

2505

Natural sands of all kinds

2506

Quartz（other than natural sands）; quartzite

2507

Kaolin and other kaolinic clays

2508

Other clays（not including expanded clays of heading No.68.06）

2509

2510

Natural calcium phosphates

2511

Natural barium sulphate（barytes）;natural barium carbonate（witherite）

2512

Siliceous fossil meals（for example

2513

Siliceous fossil meals（for example

2514

Slate

2515

Marble

2516

Granite

2517

Pebbles

2518

Dolomite

2519

Natural magnesium carbonate（magnesite）; fused magnesia; dead-burned（sintered）magnesia

2520

Gypsum; anhydrite; plasters（consisting of calcined gypsum or calcium sulphate）whether or not coloured

2521

Limestone flux; limestone and other calcareous stone

2522

Quicklime

2523

Portland cement

2524

Asbestos

2525

Mica

2526

Natural steatite

2528

Natural borates and concentrates thereof（whether or not calcined）

2529

Felspar; leucite; nepheline and nepheline syenite; fluorspar

2530

Mineral substances not elsewhere specified or included