You are hereRocks that are Rounded, Subrounded and Subangular
Rocks that are Rounded, Subrounded and Subangular
Size of Fragment: More than 256 mm
Aggregate: Boulder, gravel or conglomerate
Rock Fragment: Cobble
Size of Fragment: 64 to 256 mm
Aggregate: Cobble, gravel and cobble conglomerate
Rock Fragment: Pebble
Size of Fragment: 4 to 64 mm
Aggregate: Pebble conglomerate and pebble gravel
Rock Fragment: Granule
Size of Fragment: 2 to 4 mm
Aggregate: Granule sand
Rock Fragment: Sand
Size of Fragment: 1/6 mm to 2 mm
Aggregate: Sand and sandstone
Rock Fragment: Clay
Size of Fragment: Less then 1/256 mm
Aggregate: Clay and shale