Gorgeous 1x1 Green onyx polished mosaics meshed on a 12" x 12" tile. Each tile is one square foot. We also carry onyx mosaics in White, Gold and Green Onyx in color. Purchase directly from the manufacturer and save. Give us a call and talk to our designers about your project. We offer discounts to Designers, Builder, Contractors and Architects. A regular maintenance regimen will help keep your natural stone looking its best. It is recommended to sweep, dust mop, or vacuum prior to wet mopping with a pH-balanced neutral cleaner and warm water. Natural stones are sensitive to harsh chemicals. Using a product like vinegar, or anything with acidic properties or strong alkaline agents, is not recommended. These solvents can etch natural stones, especially polished stones like marble and onyx, which are by nature more delicate. It is also recommended to periodically seal all stone, particularly when installed in wet areas. Other large surfaces, such as flooring, are often best cared for by a licensed maintenance company to protect your natural stone.