
| Details | Washed & Graded Water Filter Sand | Silica Sand |
| Color | Light brown to dark yellow | Off white/pale yellow /Snow white |
| Density | 1750 kg per cubic meters | 100 lbs per cubic meters |
| Acid Solubility: | < 0.5% | <5.0% |
| Specific Gravity | 2.65 | 2.5 |
| Hardness | 6.0 8.0 on MOH scale | 7 on MOH scale |
| Uniform Coefficients | <1.4 | > 1.6 < 1 |