GOOGLE ONYX MARBLEGoogle Onyx Marble is highly recommended for indoor work: floor and wall tiling, frames, stairs, decorative elements, etc. For outdoor work, marble should be subject to special treatment as it is affected by the weather, which may lead to it becoming matte or cracking as a result of the freeze thaw cycle or acid rain. It is recommended for low and medium traffic floors and stairs given its average wear coefficient.