Yes, Italys Bamboos Gray Gneiss can be used in landscaping. Gneiss is a type of metamorphic rock that is known for its aesthetic appeal and durability. Its gray color and unique grain patterns can add visual interest to various landscaping projects. It can be used for pathways, patio surfaces, retaining walls, decorative boulders, and other outdoor features. Additionally, gneiss is a sturdy and dense rock, making it suitable for withstanding outdoor wear and tear.