Slate quarries are locations where slate, a fine-grained metamorphic rock, is extracted from the earth. This rock is formed from shale under high pressure and temperature, making it durable and suitable for various uses. Slate is commonly used for roofing, flooring, and even chalkboards due to its ability to be split into thin sheets. The process of quarrying involves removing large blocks of slate from the ground, which are then cut and shaped for different applications. Notable slate quarries can be found in regions like Wales and Vermont, where the quality of slate is highly regarded in construction and design.