Rock ListRock Identification TestRock List
Rock Identification Test
(
These areas
are 'active', if you click on a blue box you will go to
information about that rock)
Typical sizes of sedimentary grains:
|
Pebbles |
4 to 64 mm |
|
Grit |
2 to 4 mm |
|
Sand |
0.06 to 2 mm |
|
Mud / Silt |
0.004 to 0.06 mm |