Shale is layered, the layers being very fine grained.
sedimentary
Shale is a sedimentary rock, not a metamorphic rock.
Shale is a brown to black rock that is composed of very thin, easily split layers of strata, and the rock's graining on a freshly cleaved surface is so fine that individual grains are not distinguishable with the naked eye.
Aluminum silicates with calcium, sodium, magnesium and many cations loosely bonded to the crystalline structure. some contain carbon from deceased life forms. It is the product of volcanic activity and tectonic plate activity with weathering and hydrolysis. Clays are ancient.
The weakest type of rock is generally considered to be shale, which is a fine-grained sedimentary rock composed of clay minerals. Shale is prone to breaking apart easily and has a low resistance to weathering and erosion compared to other types of rock.
The rock described is likely to be shale, which is a sedimentary rock composed of clay minerals. Shale is typically white to gray in color, medium soft in texture, and fine-grained.
Phyllite is a type of metamorphic rock, not a mineral. It is formed from the metamorphism of shale or mudstone and has a fine-grained texture with a silky sheen due to the alignment of its minerals.
sedimentary
Shale
shale
Shale is a type of rock. A piece of shale is normally flat and thin like a small chalkboard.
the type of rock made mostly from clay is the shale rock
Shale
Shale is a sedimentary rock, not a metamorphic rock.
Shale
shale is
Shale & Limestone !