Onyx offers a unique, luxurious and distinctive choice for any countertop. Onyx is also a soft stone, and it ranges in colors from a white to deep green. Onyx is a soft stone, so it will scratch and stain. As with any natural stone, we recommend using a sealer to help protect the surface. Onyx is translucent, and a popular way to display this beautiful stone is by back-lighting it. It adds a focal point to any area in which it is displayed. Onyx also has many edge choices available.