edginessand
Edginessand is a descriptor used in geology and civil engineering to refer to sands composed predominantly of grains with sharp, angular edges and rough surfaces. The term emphasizes grain shape over mineral composition, though quartz is commonly the dominant mineral. Angularity arises from mechanical fragmentation, limited transport, or rapid deposition, and contrasts with well-rounded sands formed by prolonged abrasion in fluvial or aeolian systems.
Grain morphology and measurement: Edginessand grains exhibit facets and non-spherical shapes with high surface roughness. Shape
Occurrence and environments: Edginessand occurs in proximal source zones such as talus cones, quarry dumps, and
Engineering implications: In geotechnical design, edginessand affects compaction behavior, permeability, and filtration characteristics. The increased interlock