Crushed Granite Black Rocks can quickly transform your landscape design. The crushed Blackstar gravel is dark gray and turns black when wet. It's 1/4 inch in size. Crushed black rock works well for patio stone joints, walkways or pathways, crushed gravel bases, and hardscape and landscape projects. Sand & gravel landscaping services include gravel pathways, gravel patios, rock gardens... https://texasgardenmaterials.com/product/crushed-granite-black-rocks-1-4-price-cubic-yard/