Stoneworld supplies highly decorative black aggregate products such as Black Basalt. Black aggregates are used in many garden applications and are a great decorative choice for outside spaces like paths, driveways, garden borders or rockeries. Moreover, black aggregate can add eye-catching contrasts, especially around ponds or water features. Our Black Basalt Aggregate is available in 10-20 mm sizes in a deep rich black colour that sparkles. Ideal for the Japanese or minimalistic effect. Enhance your garden appearance with our black aggregate range now.