Rockwool is a type of insulation made from natural volcanic rock, primarily basalt. It is created by melting the rock at high temperatures and then spinning it into fibers. This process results in a material that is lightweight, fire-resistant, and effective at reducing sound and heat transfer, making it popular for building insulation. In addition to its insulation properties, Rockwool is also used in horticulture as a growing medium. It provides excellent drainage and aeration for plants, making it a favored choice among gardeners and commercial growers. Its versatility and eco-friendly nature contribute to its widespread use in various applications.