| Sample Clays | Particle Size (%) | Plasticity (%) | Shrinkage (%) | pH | Colour | Refractoriness (˚C) | ||||||
| Clay | Silt | Quartz | LL | PL | PI | Drying | Firing | Natural | Fired 1200˚C | |||
| RahinSho Clay | 67.88 | 24.00 | 8.12 | 57.30 | 25.45 | 33.68 | 1.10 | 1.65 | 6.0 | Whiter than N9 | Whiter than N9 | >1500 |
| Major Porter Clay | 73.88 | 18.00 | 8.12 | 45.38 | 29.48 | 15.90 | 1.10 | 2.23 | 6.1 | White N9 | White N9 | >1500 |
| Wereng Camp Clay | 91.88 | 6.00 | 2.12 | 61.15 | 44.05 | 17.20 | 2.23 | 4.99 | 5.6 | Near White 5YR 8/1 | Near White | >1500 |
| Kwi Clay | 84.88 | 14.00 | 4.12 | 63.90 | 28.60 | 33.30 | 1.14 | 2.40 | 5.2 | Moderate Orange Pink 5YR 8/4 | Moderate Pink 5R 7/4 | >1500 |
| Naraguta Clay | 49.88 | 43.00 | 7.12 | 48.03 | 23.50 | 24.53 | 2.22 | 3.30 | 6.4 | Light brown 5YR 5/6 | Moderate reddish brown 10R 4/6 | Fused at 1300 |