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Mineral particles, less than 2.0 mm in equivalent diameter, ranging between specified size limits. The names and size limits of separates recognized by pedologists in Canada and the United States are:

  1. very coarse sand, 2.0 to 1.0 mm
  2. coarse sand, 1.0 to 0.5 mm
  3. medium sand, 0.5 to 0.25 mm
  4. fine sand, 0.25 to 0.10 mm
  5. very fine sand, 0.10 to 0.05 mm
  6. silt,0.05 to 0.002 mm
  7. clay, less than 0.002 mm
  8. fine clay, less than 0.0002 mm

The separates recognized by the International Society of Soil Science are:

  1. coarse sand, 2.0 to 0.2 mm
  2. fine sand, 0.2 to 0.02 mm
  3. silt, 0.02 to 0.002 mm
  4. clay, less than 0.002 mm