Our Black Basalt 20mm (often referred to as Black Graphite or Graphite Chippings) is a popular angular strong stone that shows black when wet and grey when dry.

It’s ideal to use on driveways & garden features giving a touch of class to your project.

*Please note that all products are natural/quarried materials and supplied unwashed so there could be a variation in colouring, size & shape. All sizes shown are estimated*