Onyx is similar to Marble, but far rarer, and a lot lighter, both in weight, and density. In fact, Onyx is somewhat translucent, and can be backlit from behind. It’s probably one of the most interesting and beautiful of exotic stones (no two pieces of Onyx are alike), but it’s also a bit fragile. This means you will not see it used often in countertops, and if you do, it’s more for bathrooms and similar than kitchens. Still, due to its incredible (and unique) beauty Onyx is a must-have. And for those discerning shoppers, we have a nice selection of striking Onyx, ready for whatever use you have in mind for it.