Clay is formed from rocks by those rocks being weathered to minute particles, those particles being washed in a river and then deposited. As clay is formed of these "sediments" it is sedimentary.
Claystone, and shale are sedimentary rocks formed from lithified deposits of clay.
Clay is actually a description of sediment of a specific particle size. As such clay is not necessarily a rock. However when compacted and cemented clay forms claystone which is a sedimentary rock.
Clay
Claystone.
the answer is shale.
Shale is a type of sedimentary rock composed mostly of clay-sized particles. It forms from the compaction of fine-grained sediments, such as clay and silt, and is characterized by its laminated or layered appearance. Shale is one of the most common sedimentary rocks found on Earth.
Shale is a sedimentary rock formed from the compaction of fine-grained sediment such as mud or clay.
This is Shale, a Sedimentary rock.
Shale, a sedimentary rock.
ARGILLITE
claystone
shale