Marmar stone with a brand name of Onyx is a metamorphic rock with calcium carbonate as its main mineral constituent. due to aluminum and magnesium minerals presence within, onyx stones are ranging to many colorful varieties such as pure white, black, green, pink & yellow. Onyx is not applicable for exterior spaces since it will lose its durability when exposed to sunlight & weathering. The translucence of onyx makes it especially attractive for modern architecture and interior design. dual & quad book-match patterns in onyx stone make it a practical choice for residential & commercial buildings. due to transparency of onyx stones, beautiful lightings can be done through them.