Ezekiel 1:22
1:22 Over the heads of the living beings was something like a platform, glittering awesomely like ice, stretched out over their heads.
Revelation 4:6
4:6 and in front of the throne was something like a sea of glass, like crystal.
In the middle of the throne and around the throne were four living creatures full of eyes in front and in back.
Revelation 21:11
21:11 The city possesses
the glory of God; its brilliance is like a precious jewel, like a stone of crystal-clear jasper.
Revelation 22:1
22:1 Then the angel showed me the river of the water of life – water as clear as crystal – pouring out from the throne of God and of the Lamb,