Rev.4.6  and before the throne there is as it were a sea of glass, like crystal. And round the throne, on each side of the throne, are four living creatures, full of eyes in front and behind:
Rev.21.11  having the glory of God, its radiance like a most rare jewel, like a jasper, clear as crystal.
Rev.22.1  Then he showed me the river of the water of life, bright as crystal, flowing from the throne of God and of the Lamb