| Appearance | Light beige or brownish clay |
| Texture | Smooth, fine, and powdery |
| Odor | Odorless |
| Particle Size | Very fine, <75 microns |
| pH | Slightly alkaline (7.5–8.5) |
| Density | 0.5–1.0 g/cm³ |
| Porosity | High, absorbs oil and water |
| Color | Beige, yellow, or off-white |
| Solubility | Insoluble, forms a paste with water |
| Composition | Aluminum silicate with minerals |
