Decomposed Granite: 3 Types and Their Best Uses
Dec 29, 2017 · Decomposed Granite: 3 Types and Their Best Uses. December 29, 2017 david. Decomposed Granite or DG is a natural byproduct of the weathering and erosion of solid granite rocks. DG is a combination of small granite pieces (⅜ inch or smaller) and fine granite, which can resemble sand. It is like gravel, but finer and more stable.