Portugals Branco Luna Marble is primarily used for indoor applications such as countertops, flooring, and wall cladding. While it is a durable and strong material, it is not recommended for outdoor use due to its sensitivity to weathering and exposure to the elements. Outdoor conditions, such as direct sunlight, rain, and temperature fluctuations, can cause the marble to fade, crack, or deteriorate over time. Therefore, it is advisable to use more suitable materials specifically designed for outdoor applications.