The condition of the work material includes eight factors: microstructure, grain size, heat treatment, chemical composition, fabrication, hardness, yield strength, and tensile strength.
en.wikipedia.org Thus differences in lithology, grain size, and preexisting fabrics determine a different rheological response.
en.wikipedia.org When olivine is crushed, it weathers completely within a few years, depending on the grain size.
en.wikipedia.org Mylonite is a fine-grained, compact rock produced by dynamic recrystallization of the constituent minerals resulting in a reduction of the grain size of the rock.
en.wikipedia.org Closer to shore the grain size will be medium size sands with shell pieces common.
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