Soil texture is determined by the relative proportion of three mineral particles, ranked by size: 1. Sand (0.05 - 2.0 mm): Largest, gritty, high permeability. 2. Silt (0.002 - 0.05 mm): Medium, smooth/floury. 3. Clay (< 0.002 mm): Smallest, sticky, high water retention.
The ideal agricultural soil. It contains a balanced mixture (roughly 40% sand, 40% silt, 20% clay), providing excellent drainage and nutrient retention.