Composition |
Primarily quartz (SiO₂), feldspar, mica, and other minerals |
Color |
Varies from light gray, pink, or reddish to brown |
Particle Size |
0.075 mm to 4.75 mm (typically sand-sized grains) |
Density |
2.63 - 2.75 g/cm³ |
Bulk Density |
1.6 - 1.8 g/cm³ |
Hardness (Mohs Scale) |
6 - 7 |
Shape |
Angular to sub-angular |
Specific Gravity |
2.63 - 2.75 |
Water Absorption |
0.1% - 1.0% |
Grain Distribution |
Well-graded, with a variety of particle sizes |
Fineness Modulus |
2.0 - 3.5 |
pH |
6 - 8 (slightly acidic to neutral) |
Organic Impurities |
None or minimal |
Solubility in Water |
Insoluble |