Grades selected by performance
High plasticity, high whiteness and standard ceramic grades are defined by measured properties such as dry strength and fired colour, not by origin alone.
Plastic, kaolinitic ball clays from Gujarat and Tamil Nadu, selected for green strength, fired colour and casting behaviour in sanitaryware, tiles and ceramic bodies.

Ball clay is a fine-grained, highly plastic sedimentary clay made up mainly of kaolinite, with varying amounts of mica, quartz and natural organic matter. It forms where kaolinitic material has been weathered, transported and redeposited in lake or river basins, a process that breaks the clay down into very small, often sub-micron particles. That fine particle size is the reason ball clay is so plastic and so strong in the unfired state.
In a ceramic body, ball clay is the binder. It gives the mix workability for pressing, extrusion or slip casting, and enough green and dry strength for ware to be handled, dried and glazed without cracking. During firing it contributes alumina and silica to the glassy and mullite phases that give the finished piece its density and strength. Its iron and titanium content, together with organic matter, determines how white the fired body will be.
Because ball clays vary from seam to seam, buyers usually select by performance rather than by name: plasticity and dry strength for sanitaryware casting, fired whiteness for porcelain and premium tiles, and balanced properties at lower cost for general ceramic bodies. Blending clays from different seams is common practice to keep these properties stable over time.
Obsidian Minerals supplies ball clay from Gujarat and Tamil Nadu in dry powder, noodle and filter cake forms, under ISO 9001 certified processes with NABL-accredited laboratory testing. Each delivery carries a Technical Data Sheet, MSDS/SDS and batch Certificate of Analysis. Material is packed in 25 kg or 50 kg bags or in 1 MT and 1.2 MT jumbo bags, and samples for body trials are available on request.
Select a grade for its typical properties, applications, usage guidance and FAQs.
A fine, strongly bonding ball clay that gives sanitaryware slips the dry strength and casting behaviour large pieces demand.
Sanitaryware Ball ClayLow-iron, white-firing ball clay that supports bright, clean bodies in glazed porcelain, double-charge and full-body vitrified tiles.
Premium Tiles Ball ClayA balanced, economical ball clay for everyday ceramic bodies where workability and strength matter more than fired whiteness.
General Ceramics| Grade | Specification | Primary use | Link |
|---|---|---|---|
| High Plasticity Ball Clay | On TDS | Sanitaryware | Specs |
| High Whiteness Ball Clay | On TDS | Premium Tiles | Specs |
| Standard Ceramic Grade Ball Clay | On TDS | General Ceramics | Specs |
Selective mining and seam sorting
Weathering and blending
Shredding and drying
Pulverising, or slurry refining to noodles and filter cake
QC testing and packing
High plasticity, high whiteness and standard ceramic grades are defined by measured properties such as dry strength and fired colour, not by origin alone.
Ball clay from Gujarat and Tamil Nadu gives a wider raw material base for blending and for keeping properties consistent between lots.
Dry powder, noodle and filter cake forms, each with TDS, MSDS/SDS and CoA, plus samples for body and casting trials on request.
Ball clay is the plastic binder in ceramic bodies. It is used in sanitaryware, wall and floor tiles, porcelain and vitrified tiles, tableware, stoneware, electrical porcelain and refractories. It provides workability and unfired strength during forming and drying, and contributes alumina and silica to the fired body. Small additions are also used to keep glazes and engobes in suspension.
Both are based on kaolinite, but ball clay has much finer particles and usually contains more mica, quartz and organic matter. That makes ball clay far more plastic and stronger when dry, while kaolin is less plastic but generally fires whiter. Many ceramic bodies use both: ball clay for strength and workability, kaolin for whiteness and alumina.
The name comes from the traditional way the clay was mined in England, where it was cut by hand into cubes of a fixed weight. During handling and transport the corners wore away and the blocks became roughly ball-shaped. The name stayed in use and now describes any fine, plastic, kaolinitic sedimentary clay of this type.
Choose the high plasticity grade where dry strength and casting behaviour are critical, as in sanitaryware. Choose the high whiteness grade for porcelain, vitrified and premium tiles, where fired colour drives the decision. The standard ceramic grade suits general tile bodies, stoneware and refractory bonds where cost matters more than whiteness. Trials with your body recipe confirm the final choice.
Ball clay is available as dry powder, as extruded noodles, and as filter cake. Powder suits plants that batch dry or wet-mill the full body. Noodles and filter cake suit slip houses that blunge clay directly and want to avoid dust. The available form for each grade is confirmed when you enquire, together with its packing.
Yes. Samples of each grade are available on request so you can run casting, pressing or firing trials with your own body recipe and kiln profile. Please share your current clay's data sheet or target values, and the sample will be sent with its technical data for direct comparison.
Standard export packing is 25 kg or 50 kg HDPE / paper bags and 1 MT or 1.2 MT jumbo (FIBC) bags, palletised and shrink-wrapped on request. Custom and private-label packaging can be arranged for volume orders.
Yes. A Technical Data Sheet and MSDS are available for every grade, and each shipment is accompanied by a batch-specific Certificate of Analysis.
Tell us your application, preferred grade and volume. Our engineering team will recommend the right grade and send a datasheet, sample and quotation.