Yes, Italys Peperino Vitorchiano Trachyte can be used outdoors. Trachyte is a type of volcanic rock commonly used in construction and landscaping due to its durability. Peperino Vitorchiano Trachyte, specifically quarried in the Viterbo region of Italy, is often used for outdoor projects such as paving, landscaping, cladding, and building facades. It is known for its resistance to weathering, making it suitable for long-term use in outdoor environments.