It depends on what kind of clay it is, whether it be terra-cotta, stoneware, or porcelain. Each of these clays has different clay particle size. Also, it depends on how much water is in the clay. The more water, the more it will shrink in the firing process.
Very fine sediments are called loess
Mean particle size=0.94*Lambda/(FWHM*cos(theta)
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.
Shale is composed of the smallest particles of other rocks.
Silt.
A clay granule may be the size of the smallest silt particle or up to 25 times smaller, and from 25 to 40 times smaller than a sand particle. The US Department of Agriculture (USDA) classifications are 0.002 to 0.05 mm (0.00008 to 0.002 in) for silt particles, 0.05 to 2.00 mm (0.002 to 0.08 in) for sand, and clay grains are less than 0.002 mm (0.00008 in)
clay
No. Clay is the finest size of particle that can be found in sediment. Mustone is a solid rock formed from particles of clay and silt that have been cemented together.
Clay has the smallest particle size. The particles of clay soil pack so closely together that water is prevented from passing through it.
Because soil is defined as having a particle size of less than 2 mm
clay
The primary basis for distinguishing among various detrital sedimentary rocks is particle size. The chief constituents of these rocks are quartz and clay minerals.
clay
It depends on what kind of clay it is, whether it be terra-cotta, stoneware, or porcelain. Each of these clays has different clay particle size. Also, it depends on how much water is in the clay. The more water, the more it will shrink in the firing process.
crystallite is the average size of the particle whereas the particle size denotes the individual size of the particle.
25