Charcoal Granite Gravel, also known as Black Basalt or Black Granite, is a premium choice for those looking to add a touch of elegance and sophistication to their outdoor spaces. At 10mm in size, with actual pieces ranging between 8-10mm, it is perfect for creating smooth, uniform surfaces that are comfortable underfoot. Initially presented with a dust coating that gives it a grey appearance, this gravel evolves beautifully over time, achieving a rich dark grey or black colour that complements any garden, driveway, or path. A laying depth of 3-4 cm is recommended for optimal coverage and appearance.