SmallestshalesiltstonesandstoneconglomerateLargest
Pure obsidian actually has a glassy texture (grain), with no discernible crystalline structure.
1.Grain Size 2.Grain Shape 3.Grain Pattern
Shale is composed of the smallest particles of other rocks.
jagged
1/256mm, which is 3.9um
shale
Shale is a type of rock. A piece of shale is normally flat and thin like a small chalkboard.
SmallestshalesiltstonesandstoneconglomerateLargest
Rocks don't come in particular sizes. Shale is a type of rock - it can be as small as a grain of sand or as large as a mountain range
Pure obsidian actually has a glassy texture (grain), with no discernible crystalline structure.
the same shape as a poo
1.Grain Size 2.Grain Shape 3.Grain Pattern
Shale is composed of the smallest particles of other rocks.
Slate can be found beneath the Earth's surface. It is formed from mudstone or shale and is a fine grain of crystalline rock.
1.Grain Size 2.Grain Shape 3.Grain Pattern
it can be a square