Assertion: soil's particle | /r/HasProperty | clay
Facets:
value: usually
type: DEGREE
Source sentences:
text: It differs from fluid mechanics and solid mechanics in the sense that soils consist of a heterogeneous mixture of fluids (usually air and water) and particles (usually clay, silt, sand, and gravel) but soil may also contain organic solids and other matter.
text: The finest particles are known as clay defined as having a diameter of less than 2 micrometres (m, a micrometre is one thousandth of a millimetre.
text: Particles smaller than 0.002 millimeter in size are clays.