slate
foliated
Slate is a type of rock that splits easily into thin sheets due to its fine-grained structure and parallel alignment of mineral grains. This property makes slate a popular material for roofing tiles and decorative purposes.
slateschist
Mica is made up of sheets of silicate
Slate splits into sheets and is used on roofs.
Slate is formed by heat and pressure on shale or mud stone. It splits into perfectly cleaved, broad thin sheets. It is a sedimentary rock made of volcanic ash.
Slate is formed by heat and pressure on shale or mud stone. It splits into perfectly cleaved, broad thin sheets. It is a sedimentary rock made of volcanic ash.
Pumice.
the rock erodes into soil
Slate splits into sheets and is used on roofs.
In for form of graphite it can be broken into graphene sheets. In other forms carbon does not break into sheets.
Muscovite mica has perfect cleavage in one direction. It splits into thin sheets.