Genesis 2:12

and the gold of that land is good; there is bdellium and the onyx stone. Although the garden of Eden was long since destroyed and the entire contour of the country changed by the great Flood, it is probable that we may assume its location to have been in the central tableland of Asia or Armenia. There was the river Pison, the full-flowing, whose place may now have been taken by the Indus or by the Kur. It flowed through a sandy land, where gold in great quantity and of an excellent quality was found, also bdellium, an odoriferous and very costly gum, and onyx, or sardius, a precious stone which had the color of human finger-nails.