'Glass' in the Bible

And in front of the throne there seemed to be a sea of glass, resembling crystal. And midway between the throne and the Elders, and surrounding the throne, were four living creatures, full of eyes in front and behind.

And I saw what seemed to be a sea of glass mingled with fire, and those who had gained the victory over the Wild Beast and over his statue and the number of his name, standing by the sea of glass and having harps which belonged to God.

The solid fabric of the wall was jasper; and the city itself was made of gold, resembling transparent glass.

And the twelve gates were twelve pearls; each of them consisting of a single pearl. And the main street of the city was made of pure gold, resembling transparent glass.