Onyx is a cryptocrystalline form of quartz. The colors of its bands range from white to almost every color. Commonly, specimens of onyx available contain bands of colors of white, tan, and brown. Pure black onyx is common, and perhaps the most famous variety, but not as common as onyx with banded colors.

 Marble exports was founded by aldoukangroup.com in 1998 , it was created to serve the group’s growing need for marble flooring , cladding , counter tops , water jet and marble mosaics . It expanded later to include machine cut mosaics and hand cut mosaics.