Black Basalt Cobbles 60 - 120 MM
A 60-120mm tumbled dark grey rounded cobble that is charcoal grey when dry and jet black when wet.
Natural cobbles are sourced from raised beach and alluvial deposits or suitable rock types are tumbled to produce more specialised rounded cobbles. These highly decorative products are used extensively in landscaping water features and domestic garden projects.
Rock Type: Basalt
Fish Friendly: No