shale
Neither. It has no visible grain.
Grain size increases in the process of recrystallization.
Shale is a sedimentary rock formed from extremely fine grains of mud. They are typically about 0.004 mm in diameter.
Grain size depends upon the cooling rate as written below: 1. longer the time it takes to cool, larger will be the grain size and vice versa
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
Shale is composed of the smallest particles of other rocks.
shale
it means increase i the size of shale due to hydration.
Rocks that are categorized as sedimentary rocks include sandstone, breccia shale, limestone and selenite. Sedimentary rocks are classified by their grain size.
Silt and clay size sediments form shale.
there is no visible grain size
Small to medium grain size.
It depends on how you are defining the word 'soft'. Quartzite is the hardest and most durable of the three - no question there. Shale can be crumbled with the tap of a hammer. Some loosely cemented sandstone can be crumbled when squeezed hard enough with your hand and some is well cemented and quite hard.
Particle size is another name for the term grain size.
Slaet in grain size is the size of sand crystals.