What material is mineral wool primarily made from?

Mineral wool is primarily composed of molten slag, glass, or rock. This material is created by melting these raw materials at high temperatures and then rapidly cooling them, which results in the formation of fibrous strands. These strands are lightweight, have excellent insulation properties, and are fire-resistant, making mineral wool a popular choice for thermal and acoustic insulation in buildings and industrial applications.

The production process involves the use of natural resources such as stone, or byproducts like slag from steel manufacturing, which contributes to its sustainable profile. Mineral wool's unique properties, including moisture resistance and sound absorption, make it distinct from other insulation materials, affirming option B as the most accurate choice.