Rainbow Onyx or Moralize onyx is a unique red onyx made up of layers of gold, white and brown veining. Portions of this stone are semi-translucent and can be backlit for a wonderfully beautiful aesthetic. MGT suggests using this colorful onyx for master bathroom vanities, hot tub surrounds, fireplace surrounds and can be backlit as a standalone piece of art. This rainbow onyx quarry is located in Khorasan province in East of Iran. MGT stone company used to export rainbow onyx blocks to all over the world. We ship rainbow onyx slab as well. During the polishing process, an epoxy resin is applied to the surface of the slabs to fill in any natural pits, cracks or fissures that may exist in the stone. This does not affect the durability, maintenance or beauty of the slab. Multi Orange onyx is another name used for this multicolor onyx.