Slate is a metamorphic type rock with a layered structure, allowing it to be cleaved apart into thin sheets. This creates the unique surface texture that shows the natural ridges and layers of the stone’s structure. Quarried by prying apart layers of stone, the surface exposed is quite colorful, in some cases exposing minerals trapped between the layers of stone. Slates are found in black, charcoal, cool greys, browns, rusty reds, green, copper or plum colors.

Slate's natural, clefted finish has the added benefit of being inherently slip-resistant. While this can be particularly sought after in exterior applications, please consult with a Global Granite & Marble representative because not all slates are suitable in the Midwest's freeze-thaw cycle. After quarrying, tiles in the building industry are typically gauged, or ground down from the back, to make them more uniform in thickness and easier to install. Although slates may be honed or polished, these finishes tend to show slates susceptibility to scratching, so they should be used in vertical or low traffic area horizontal applications for the best effect.

Slate is available in tiles, slabs, and mosaics which can all be combined in unique ways for any project.