XL Premium Black Stacked Stone from the MSI Stone XL Rockmount collection, is crafted in 9″ x 24″ stacked stone panels, this selection, made from slate, boasts a striking split-face finish that accentuates its deep black hue with minimal variation. Perfect for interior applications such as accent walls and fireplace surrounds, Premium Black seamlessly extends its sleek aesthetic to exterior projects, including cladding structures, support beams, and retaining walls.