Claystone
Shale (fractures along bedding)
- Siltstone
- Mudstone (blocky fracture)
- Silt
- clay
- 0.063 - 0.0039 mm
- Less than 0.0039 mm
Sandstone
- Coarse Sand - Fine Sand
- 4 - 0.063 mm
Conglomerate
- Boulder
- Cobble
- Pebble
main siliciclastic sediments and the rocks they form
Rock
Sediment Type
Sediment Size
Fine Grain
- 256 mm and larger
- 256 - 64 mm
- 64 - 4 mm
Coarse Grain
Medium Grain
Siliciclastic Sediment and Rock Classification
