Irish Knights Green D. G. This like many materials sold as decomposed granite" material is actually a hard rock fine of 3/8" minus. This really dark green rock material is a great for color contrasts in the landscape that is an excellent hardscape, utility area and light vehicle pathway material. Central California quarry shipping bulk throughout the region, the Central Valley and into Southern and Northern California. SuperEarth-sack delivery anywhere requested. Processed in: 3/8" minus - a great D.G. like material 3/8" screened - very attractive nearly pure gravel 3/4" screened sizes - very clean and attractive large scale gravel 4" minus, rip rap and boulders. This "screened" gravel does not contain the large amount of fines the "minus" screen grade does. The screened material is about 90% 3/8" gravel offers a very clean look for planterbeds.