Black Granite Landscape Boulders Granite California and Colorado rock quarries Black granite boulders are a diffulcult item from quarries and construction sites as available. Black granite boulders are really difficult to come by as an affordable landscape material. We have a limited amount of black to gray-black granite boulders from 12 inches to 6 feet available. These materials can ship as palleted material anywhere as needed. Black Academy Granite boulders are not part of this group of materials. These boulders are great for landscaping. The color ranges from strong salt n pepper to black-grey colors.
