Onice Pakistano Onyx will look stunning in any room of the house, but it is most commonly used around fireplaces, in bathrooms, and as furniture. Onyx is a beautiful variation of limestone that has been slowly dissolved by water and deposited as a new stone. This is sometimes seen in stalactites and stalagmites. Onyx can be found in almost every color, and is known for its stunning bands of color. It will add beauty and value to your home.