The Different Types of Gravel - Crushed Stone, Sand
Crushed Stone. Crushed clean stone is available in several different sizes based upon your project specifications, but most experts consider "gravel" to be of a size of approximately 3/4″ or less. This type of aggregate material is crushed and screened to size and occasionally washed. This washing process helps to ensure that the material is free of any remnants of dust or other residue