Yes, Indonesias Black Classic Basalt can be used outdoors. Basalt is a naturally occurring volcanic rock and is known for its durability and strength, making it suitable for outdoor applications such as paving, cladding, or landscaping. It is resistant to weathering, UV radiation, and temperature fluctuations, making it a popular choice for outdoor projects. Additionally, the black color of this basalt adds an attractive and timeless aesthetic to outdoor spaces.